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Biomass

[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]

PNNL study uncovers role of water in forming impurity in bio-oil upgrading; insight into fundamentals of biofuel catalysis

August 21, 2014

In working to elucidate the chemistry of hydrodeoxygenation (HDO) for the catalytic upgrading of pyrolytic bio-oil to fuel-grade products, researchers at Pacific Northwest National Laboratory (PNNL) have discovered that water in the conversion process helps form an impurity which, in turn, slows down key chemical reactions. Results of the study, which was reported in the Journal of the American Chemical Society, can help improve processes that produce biofuels from plants.

The study examines the conversion of bio-oil, produced from biomass such as wood chips or grasses, into transportation fuels. Researchers used density functional theory (DFT)-based ab initio molecular dynamics calculations to provide a detailed atomic-level understanding of how the hydrogenation reactions are influenced by the presence of water and also by the nature of the hydrogenating metal. The results of the study apply not only to water but to related liquids in bio-oil such as alcohols and certain acids.

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JBEI researchers develop “bionic” liquids: ionic liquids derived from lignin and hemicelullose; towards closed-loop biorefineries

August 19, 2014

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Hypothetical process flow for a closed-loop biorefinery using ionic liquids derived from lignocellulosic biomass (“bionic liquids”) for biomass deconstruction. Socha et al. Click to enlarge.

Researchers at the US Department of Energy’s Joint BioEnergy Institute (JBEI) have developed “bionic liquids”—ionic liquids derived from lignin and hemicellulose, two by-products of biofuel production from biorefineries. JBEI is a multi-institutional partnership led by Lawrence Berkeley National Laboratory (Berkeley Lab) that was established by the DOE Office of Science to accelerate the development of advanced, next-generation biofuels.

Ionic liquids show great promise for liberating fermentable sugars from lignocellulose and improving the economics of advanced biofuels. The concept of bionic liquids opens the door to realizing a closed-loop process for future lignocellulosic biorefineries, and has far-reaching economic impacts for other ionic liquid-based process technologies that currently use ionic liquids synthesized from petroleum sources, said Blake Simmons, a chemical engineer who is JBEI’s Chief Science and Technology Officer and heads JBEI’s Deconstruction Division.

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UC Riverside team develops new high efficiency method for conversion of biomass to biofuels

August 04, 2014

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Overview of the process. Cai et al. (2014) Click to enlarge.

A team of researchers, led by Professor Charles E. Wyman, the Ford Motor Company Chair in Environmental Engineering at the University of California, Riverside’s Bourns College of Engineering, has developed a versatile, relatively non-toxic, and efficient way to convert lignocellulosic biomass into biofuels and chemicals.

The method couples the use of a metal halide selective catalyst with a highly tunable co-solvent—renewable tetrahydrofuran (THF)—to enhance co-production of the fuel precursors furfural and 5-HMF from biomass in a single-phase reaction strategy capable of integrating biomass deconstruction with catalytic dehydration of sugars. Those fuel precursors can then be converted into ethanol, chemicals or drop-in fuels.

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U Mich professor finds fuel cycle analysis for evaluating CO2 impacts of liquid fuels is fatally flawed; calls for focus on CO2 removal

July 28, 2014

Fuel cycle analysis (FCA)—or “well-to-wheels analysis”—is a type of lifecycle analysis (LCA) that examines fuel products and their supply chains, and that has greatly influenced climate-related research priorities and public policies for transportation fuels.

However, in a major review of methods for evaluating the net CO2 impacts of liquid transportation fuels, Professor John DeCicco at the University of Michigan Energy Institute (UMEI) compared FCA to other methods of analysis, and found “flaws fatal enough to raise serious concerns about the role of FCA in shaping fuel-related CO2 mitigation strategies. Instead, DeCicco proposes “setting the lifecycle paradigm aside” and focusing on the problem of carbon dioxide removal.

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California Energy Commission selects 11 advanced biofuels projects for $43.6M in awards

July 25, 2014

The California Energy Commission (CEC) has selected 11 biofuel projects projects—including gasoline substitutes, diesel substitutes and biomethane projects—for $43,633,421 in awards under a grant solicitation released in January for the development of new, or the modification of, existing California-based biofuel production facilities that can sustainably produce low carbon transportation fuels.

The grant solicitation had announced a total of $24 million available for projects funded by the solicitation; however, the Energy Commission, at its sole discretion, reserves the right to increase or reduce the amount of funds available.

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Researchers synthesize diesel- and jet-range cycloalkanes from lignocellulosic platform compounds

July 18, 2014

Researchers at the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, have synthesized, for the first time, a mixture of C9−C15 branched alkanes and cycloalkanes with relatively higher density from 2-Methylfuran (2-MF) and cyclopentanone (CPO)—selective hydrogenation products of furfural, which can be produced in industrial scale with lignocellulose.

Most work done so far with lignocellulose-based platform compounds has concentrated on the production of diesel (C9−C21) or jet fuel (C8−C16) range straight-chain alkanes and/or branched-chain alkanes, the team notes in their paper in the ACS journal Energy & Fuels. Although those alkanes have good thermal stability and excellent combustion efficiency, their lower densities require blending with conventional jet fuel (a mixture of straight-chain alkanes, branched-chain alkanes, and cyclic hydrocarbons) to meet the specifications of aviation fuel.

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DOE, USDA awarding $12.6M to 10 biomass genomics research projects for improved biofuels

July 17, 2014

The US Department of Energy (DOE) and the US Department of Agriculture (USDA) have selected 10 projects that will receive funding aimed at accelerating genetic breeding programs to improve plant feedstocks for the production of biofuels, biopower, and bio-based products.

The $12.6 million in research grants are awarded under a joint DOE-USDA program that began in 2006 focused on fundamental investigations of biomass genomics, with the aim of harnessing nonfood plant biomass for the production of fuels such as ethanol or renewable chemical feedstocks. Dedicated feedstock crops tend to require less intensive production practices and can grow on poorer quality land than food crops, making this a critical element in a strategy of sustainable biofuels production that avoids competition with crops grown for food.

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Edeniq and Global Bio-chem to develop and commercialize technology to convert corn stover to industrial sugars for fuels

July 16, 2014

Edeniq, Inc., a cellulosic sugar producer (earlier post), has signed a letter of intent with China-based Global Bio-chem Technology Group Company Limited to develop and to commercialize processes to convert corn stover to industrial sugars for use in the production of chemicals, fuels, and other bio-based products.

Pursuant to the letter of intent, Edeniq and Global Bio-chem intend to integrate their technologies in a commercial demonstration plant to produce 50,000 metric tons per year of industrial sugars from corn stover, and subsequently to form a joint venture to further develop and commercialize their technology platform. Global Bio-chem is currently working on modification of corn stover—leaves, stalks and cobs of corn—at its facility in the Jilin Province of China.

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Cobalt and Andritz sign exclusive agreement for technology and engineering for production of cellulosic n-butanol

July 11, 2014

Cobalt Technologies, Inc. signed an exclusive global cooperation and supply agreement with Andritz Inc., the US subsidiary of international technology Group Andritz, to integrate Cobalt’s proprietary lignocellulosic pre-treatment process for the production of n-butanol with Andritz’s customized pre-treatment systems.

The primary alcohol n-butanol has traditionally been produced from fossil fuels. Engineered to achieve low production costs, Cobalt’s technology naturally converts both C5 and C6 sugars into bio-butanol, using any non-food lignocellulosic, renewable and sustainable feed-stock.

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EPA qualifies new biogas and electricity pathways for cellulosic biofuel requirement under RFS; defers decision on other proposed pathways

July 03, 2014

In a newly released rule, the US Environmental Protection Agency (EPA) has clarified the number of cellulosic biofuel renewable identification numbers (RINs, earlier post) that may be generated for fuel made with feedstocks of varying cellulosic content; qualified additional fuel pathways to meet the lifecycle greenhouse gas (GHG) reduction requirements for cellulosic biofuel under the National Renewable Fuel Standard (RFS) program; and clarified or amended a number of RFS program regulations that define terms or address registration, record-keeping, and reporting requirements. The final rule also clarifies that EPA considers corn kernel fiber to be a crop residue.

However, the final rule differs in several ways from the Notice of Proposed Rulemaking EPA had issued in June 2013 (earlier post):

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New one-pot process for conversion of cellulose to n-hexane, a gasoline component

June 26, 2014

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One-pot process for conversion of cellulose to hexane, a gasoline component. Credit: ACS, Liu et al. Click to enlarge.

Researchers at Tohoku University in Japan have developed a one-pot process to convert cellulose to n-hexane in the presence of hydrogen gas. According to the US Environmental Protection Agency (EPA), unleaded gasoline contains about 11.6% n-hexane.

In a paper in the journal ACS Sustainable Chemistry & Engineering, the Tohuku team reports achieving a yield of n-hexane of 83% from ball-milled cellulose and 78% from microcrystalline cellulose. Even using a high weight ratio of cellulose to water (1:1), a 71% yield of n-hexane could be obtained from ball-milled cellulose.

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DOE awards $100M in 2nd funding round for 32 Energy Frontier Research Centers

June 24, 2014

The US Department of Energy (DOE) is awarding $100 million in the second round of funding for Energy Frontier Research Centers (EFRCs); research supported by this initiative will enable fundamental advances in energy production, storage, and use.

The 32 projects receiving funding were competitively selected from more than 200 proposals. Ten of these projects are new while the rest received renewed funding based both on their achievements to date and the quality of their proposals for future research.

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LowCVP reports indicate pathways for meeting renewable energy targets in transportation, decarbonizing fuel to 2030 and beyond

June 18, 2014

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Illustrative impact of the fuel roadmap. Source: LowCVP, Element Energy. Click to enlarge.

The UK’s LowCVP has published twin reports which set out how the UK could meet its 2020 targets defined in the EU’s Renewable Energy Directive, and proceed on a pathway to decarbonize road transport fuel in the period to 2030 and beyond.

The LowCVP—the stakeholder body which brings government, industry and other stakeholders together to focus on the challenges of decarbonizing road transport—commissioned energy consultancy Element Energy to analyze the UK’s options for meeting the Renewable Energy Directive’s (RED) 2020 transport target which states that at least 10% of the final energy consumption in transport must come from renewable sources. This and the parallel Fuels Roadmap report benefitted from wide industry consultation and explicitly set out to align with existing powertrain roadmaps (including those published by the Automotive Council and the LowCVP).

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International team sequences Eucalyptus genome; potential for improving biofuel and biomaterial production

June 14, 2014

An international team of researchers has sequenced the genome of the eucalyptus tree (Eucalyptus grandis) and published the analysis in an open access paper in the journal Nature. With its prodigious growth habit, the eucalyptus tree, one of the world’s most widely planted hardwood trees, has the potential to enhance sustainable biofuels and biomaterials production, and to provide a stable year-round source of biomass that doesn’t compete with food crops.

The researchers reported the sequencing and assembly of more than 94% of the 640-megabase genome of Eucalyptus grandis. Of 36,376 predicted protein-coding genes, 34% occur in tandem duplications, the largest proportion thus far in plant genomes. Eucalyptus also shows the highest diversity of genes for specialized metabolites such as terpenes, which can be substituted catalytically for jet fuel.

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Study suggests energy and GHG impacts of synthetic hydrocarbon fuels from CO2 are greater than impacts of existing hydrocarbon fuels

June 06, 2014

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Synthetic fuel production from fuel-combustion-based energy and CO2 (top) and from atmospheric CO2 using solar electricity (bottom). Credit: ACS, van der Giesen et al. Click to enlarge.

Researchers at the Institute of Environmental Sciences at Leiden University, The Netherlands) have concluded that the energy demand and climate impacts of using CO2 to produce synthetic hydrocarbon fuels by using existing technologies can be greater than the impacts of existing hydrocarbon fuels. Their quantitative lifecycle assessment of the environmental merits of liquid hydrocarbon fuels produced from CO2, water and energy compared to alternative fuel production routes is published in the ACS journal Environmental Science & Technology.

In their study, the researchers evaluated five hypothetical production routes using different sources of CO2 and energy. The team undertook the work specifically to investigate four general arguments that have been proposed in support of such fuels:

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UGA-led team engineers bacterium for the direct conversion of unpretreated biomass to ethanol

June 03, 2014

A team led by Dr. Janet Westpheling at the University of Georgia has engineered the thermophilic, anaerobic, cellulolytic bacterium Caldicellulosiruptor bescii, which in the wild efficiently uses un-pretreated biomass—to produce ethanol from biomass without pre-treatment of the feedstock. A paper on the work is published in Proceedings of the National Academy of Sciences (PNAS).

In January, Dr. Westpheling and her colleagues reported in the journal Science their discovery that an enzyme (the cellulase CelA) from C. besciia can digest cellulose almost twice as fast as Cel7A, the current leading component cellulase enzyme on the market. (Earlier post.)

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GTI and Haldor Topsøe report successful operation of $35M pilot plant for converting woody biomass to gasoline; vehicle testing starting

May 30, 2014

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Pilot plant integrating Carbona gasification with TIGAS syngas-to-gasoline process. Click to enlarge.

In a recently completed project, Gas Technology Institute (GTI) worked with Haldor Topsøe, Inc. on an integrated biorefinery to make renewable “drop-in” gasoline. The use of renewable gasoline could reduce lifecycle greenhouse gas emissions by approximately 92% when compared to conventional gasoline.

The almost $35-million pilot-scale project, supported by the US Department of Energy (DOE) integrated biorefineries program ($25 million from DOE, $9,771,659 cost-share), converted woody biomass into bio-derived gasoline by fully integrating and optimizing biomass gasification and syngas cleanup steps with a unique process to turn syngas into gasoline. (Earlier post.)

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Roadmap shows how to improve lignocellulosic biofuel biorefining with high-value products from isolated lignin

May 19, 2014

A new review article in the journal Science highlights emerging opportunities to increase the transformation of lignin to value-added products—i.e., lignin valorization. The resulting roadmap uses the integration of genetic engineering with analytical chemistry tools to tailor the structure of lignin and its isolation so it can be used for materials, chemicals and fuels, said lead author Arthur Ragauskas, a professor in the School of Chemistry and Biochemistry at the Georgia Institute of Technology.

Potential high-value products from isolated lignin include low-cost carbon fiber, engineering plastics and thermoplastic elastomers, polymeric foams and membranes, and a variety of fuels and chemicals—all currently sourced from petroleum. Each product stream, however, has its own distinct challenges.

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California Energy Commission publishes investment plan for alt and renewable fuel and vehicle technology, 2014-2015

May 14, 2014

The California Energy Commission has published the “2014‐2015 Investment Plan Update for the Alternative and Renewable Fuel and Vehicle Technology Program”. The 2014‐2015 Investment Plan Update covers the sixth year of the program and reflects laws, executive orders, and policies to reduce greenhouse gas emissions, petroleum dependence, and criteria emissions. It details how the California Energy Commission, with input from stakeholders and the program Advisory Committee, determines the program’s goal‐driven priorities, coupled with project opportunities for funding.

The Energy Commission held public Advisory Committee workshops to collect feedback on the initial and then revised staff drafts; a lead commissioner report version was released on 8 April 2014, and the Energy Commission adopted this commission report at its Business Meeting on 22 April 2014.

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Study finds alcohol mix from biomass-derived syngas could be suitable replacement for ethanol in fuel blending

May 12, 2014

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AlcoMix displays antiknock blending characteristics similar to those of ethanol when blended at various concentrations with non-oxygenated gasoline (RON = 82). Credit: ACS, Rapp et al. Click to enlarge.

Results of a study by a team from the US and Austria suggest that the primary alcohol mixture (“AlcoMix,” comprising 75% ethanol, 11% 1-propanol, 8% 1-butanol, and 6% 1-pentanol) produced from biomass-based syngas could be used as a substitute for ethanol as a primary fuel or as an antiknock blending component.

The purpose of the study, reported in the ACS journal Energy & Fuels, was to determine whether AlcoMix,the probable outcome of the thermochemical conversion of biomass using Fischer–Tropsch chemistry with synthesis gas, might be a suitable replacement for ethanol in fuel blending as an antiknock blending component for spark-ignited engines.

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Study finds that optimized integrated catalytic processing of biomass could produce renewable jet fuel with selling price as low as $2.88/gallon

May 09, 2014

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Integrated processing of hardwood to renewable jet and chemicals. Click to enlarge.

A team from seven US universities and the Korea Institue of Science and Technology, led by George Huber, Professor of Chemical and Biological Engineering at the University of Wisconsin-Madison, has developed an integrated catalytic process for the conversion of whole biomass into drop-in aviation fuels with maximal carbon yields.

The researchers expect that in its current state, the proposed technology could deliver jet fuel-range liquid hydrocarbons for a minimum selling price of $4.75 per gallon—assuming nth commercial plant that produces 38 million gallons liquid fuels per year with a net present value of the 20 year biorefinery set to zero. Future improvements in this technology, including replacing precious metal catalysts by base metal catalysts and improving the recyclability of water streams, could reduce this cost to $2.88 per gallon.

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DOE seeking stakeholder input on 8 strategic biofuels pathways

May 04, 2014

The US Department of Energy (DOE) has issued a request for information (DE-FOA-0001124) seeking stakeholder input regarding the 8 representative biofuel technology pathways that the Office of Energy Efficiency and Renewable Energy’s (EERE) Bioenergy Technologies Office (BETO) has selected to guide its Research and Development (R&D) strategy in the near-term.

DOE is also seeking input on other pre-commercial pathways that it should consider in the near- to long-term.

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Study finds removing corn residue for biofuel production can decrease soil organic carbon and increase CO2 emissions; may miss mandated 60% GHG reduction

April 21, 2014

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Contribution of modeled CO2 emissions from SOC to the life cycle of biofuel from corn residue. Error bars are ± one standard deviation. Liska et al. Click to enlarge.

Using corn crop residue to make ethanol and other biofuels reduces soil carbon and under some conditions can generate more greenhouse gases than gasoline, according to a major, multi-year study by a University of Nebraska-Lincoln team of researchers published in the journal Nature Climate Change. The findings cast doubt on whether biofuels produced from corn residue can be used to meet federal mandates for cellulosic biofuels to reduce greenhouse gas emissions 60% compared to gasoline.

The study, led by assistant professor Adam Liska, was funded through a three-year, $500,000-grant from the US Department of Energy, and used carbon dioxide measurements taken from 2001 to 2010 to validate a soil carbon model that was built using data from 36 field studies across North America, Europe, Africa and Asia. Using USDA soil maps and crop yields, they extrapolated potential carbon dioxide emissions across 580 million 30-meter by 30-meter geospatial cells in Corn Belt states.

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DOE announces $10M for upgrading technologies for production of renewable drop-in fuels

April 16, 2014

The US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) announced up to $10 million in funding to advance the development, improvement and demonstration of integrated biological or chemical upgrading technology for the production of substitutes for petroleum‐based feedstocks, products and fuels. (DE-FOA-0001085).

The DOE’s Bioenergy Technologies Office (BETO) has funded research on biochemical conversion processes since 2007, with particular focus on the development of improved cellulases and fermentative organisms for ethanol production from cellulosic feedstocks. EERE is seeking to diversify the BETO portfolio to include a variety of chemical and biological upgrading technologies for the production of a suite of hydrocarbon fuels, fuel intermediates and chemicals (beyond ethanol) to be produced in an integrated fashion from biologically or chemically derived intermediate feed streams, such as but not limited to cellulosic sugars, lignocellulose derivatives, lignin, cellulosic alcohols, bio‐solids and biogases.

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DOE releases five-year strategic plan, 2014-2018; supporting “all of the above” energy strategy

April 08, 2014

The US Department of Energy (DOE) released its five-year 2014-2018 Strategic Plan. The plan is organized into 12 strategic objectives aimed at three distinct goals: Science and Energy; Nuclear Security; and Management and Performance. These objectives represent broad cross-cutting and collaborative efforts across DOE headquarters, site offices, and national laboratories.

The overarching goal for Science and Energy is: “Advance foundational science, innovate energy technologies, and inform data driven policies that enhance US economic growth and job creation, energy security, and environmental quality, with emphasis on implementation of the President’s Climate Action Plan to mitigate the risks of and enhance resilience against climate change.” Under that, the plan sketches out 3 strategic goals:

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ERTRAC publishes roadmap on energy carriers and powertrains; role for power-to-gas

April 07, 2014

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Main technology trends and the vision share of engines in Europe. [ERTRAC / EUCAR] Click to enlarge.

The European Road Transport Research Advisory Council (ERTRAC) has published a new roadmap assessing energy carriers and powertrains in the context of the European target to achieve a 60% reduction in CO2 emissions from transport by 2050. ERTRAC is the European Technology Platform (ETP) for Road Transport recognized and supported by the European Commission. ERTRAC has more than 50 members, representing all the actors of the Road Transport System: transport industry, European associations, EU Member States, local authorities, European Commission services, etc.

The analysis concludes that while the goal is challenging, it is also realizable; however the overall high-level goals need to be segmented into precise targets for the different industries and stakeholders. For the topic of future road mobility these are the development of alternative and decarbonized fuels and energy carriers; and higher powertrain efficiency leading to cleaner mobility and reduction in resource demand.

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Researchers engineer poplar trees for easier degradation of lignin to ease production of biofuels

April 04, 2014

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Poplar vascular tissue showing feruloyl-coenzyme A (CoA) monolignol transferase (FMT) expression. Source: GLBRC. Click to enlarge.

Researchers from Michigan State University and the University of Wisconsin-Madison and their colleagues report successfully engineering poplar trees to produce lignin that degrades more easily, thereby lowering the effort and cost to convert wood to biofuel. A paper on their work appears in the journal Science.

Poplar trees are a fast-growing wood crop widely planted throughout the United States and Canada, and are particularly valuable to the bioenergy, bio-products, and fiber industries. Lignin provides strength to wood but also impedes efficient degradation when wood is used as feedstock for biofuel. The researchers identified an enzyme (coniferyl ferulate feruloyl-CoA monolignol transferase) in other plants that contain more digestible lignin monomers, then expressed it in poplar. The resulting trees showed no difference in growth habit under greenhouse conditions, but their lignin showed improved digestibility.

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JEC updates well-to-wheels study on automotive fuels and powertrains; electro-mobility, natural gas and biofuels

March 27, 2014

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WTW energy expended and GHG emissions for conventional fuels ICE and hybrid vehicles shows the potential for improvement of conventional fuels and ICE based vehicles. Source: EUR 26236 EN - 2014 Click to enlarge.

Europe’s Joint Research Centre (JRC) and its partners in the JEC Consortium—JRC, EUCAR (the European Council for Automotive R&D) and CONCAWE (the oil companies European association for environment, health and safety in refining and distribution)—have published a new version of the Well-to-Wheels Analysis of Future Automotive Fuels and Powertrains in the European Context. (Earlier post.)

The updated version includes a longer-term outlook by expanding the time horizon from 2010 and beyond to 2020 and beyond. It adds an assessment of electrically chargeable vehicle configurations, such as plug-in hybrid, range extended, battery and fuel-cell electric vehicles. It also introduces an update of natural gas pathways, taking into account the addition of a European shale gas pathway. Furthermore, biofuel pathways, including an entirely new approach to NOx emissions from farming, were thoroughly revised.

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Lawrence Livermore, JBEI researchers engineer bacteria with tolerance to ionic liquids for enhanced production of advanced biofuels

March 26, 2014

Researchers from Lawrence Livermore National Laboratory in conjunction with the Joint BioEnergy Institute (JBEI) have engineered tolerance to ionic liquids (ILs)—used for biomass pretreatment, but generally toxic to bacteria—into biofuel-producing bacteria.

The results, reported in an open access paper in Nature Communications are likely to eliminate a bottleneck in JBEI’s biofuels production strategy, which relies on ionic liquid pretreatment of cellulosic biomass. The research also demonstrates how the adverse effects of ionic liquids can be turned into an advantage, by inhibiting the growth of other bacteria.

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Cellulosic fuels company KiOR reveals “substantial doubts” about its viability; funding needed by 1 April

March 19, 2014

In its Form 10-K (annual report) filed with the SEC on 17 March, cellulosic renewable fuels company KiOR said it has “substantial doubts about [its] ability to continue as a going concern”. Ongoing viability will require additional capital to provide additional liquidity. (Earlier post.)

On 16 March, the company received a $25-million investment commitment from Vinod Khosla (one of the company’s investors), conditioned on the achievement of certain performance milestones to be mutually agreed upon. Other than that commitment, however, Kior said it has no other near-term sources of financing. Kior said that if it is unsuccessful in finalizing definitive documentation with Khosla on or before 1 April 2014—i.e., in two weeks—it will not have adequate liquidity to fund operations and meet obligations (including debt payment obligations), and would not expect other sources of financing to be available.

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UPM, Fortum and Valmet partnering to develop new catalytic pyrolysis technology for advanced lignocellulosic fuels

March 12, 2014

Fortum, UPM and Valmet have joined forces to develop a new catalytic pyrolysis technology to produce advanced high value lignocellulosic fuels, such as transportation fuels or higher value bio-liquids.

The five-year project is called LignoCat (lignocellulosic fuels by catalytic pyrolysis). The project is a natural continuation of the consortium’s earlier bio-oil project together with the VTT Technical Research Centre of Finland, commercializing integrated pyrolysis technology for production of sustainable bio-oil for replacement of heating oil in industrial use.

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Vertimass licenses ORNL ethanol-to-hydrocarbon conversion technology; overcoming the blend wall with drop-in fuels

March 07, 2014

Vertimass LLC, a California-based start-up company, has licensed an Oak Ridge National Laboratory (ORNL) technology that directly converts ethanol under moderate conditions at one atmosphere without the use of hydrogen into a hydrocarbon blend-stock for use in transportation fuels.

The technology developed by ORNL’s Chaitanya Narula, Brian Davison and Associate Laboratory Director Martin Keller uses an inexpensive zeolite catalyst to transform ethanol into a blend-stock consisting of a mixture of C3 – C16 hydrocarbons containing paraffin, iso-parrafins, olefins, and aromatic compounds with a calculated motor octane number of 95. Fractional collection of the fuel product allows for the different fractions to be used as blend-stock for gasoline, diesel, or jet fuel.

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Fleet testing shows UPM renewable diesel from wood biomass performs as well as petroleum diesel

March 03, 2014

The first fleet tests of UPM’s BioVerno renewable diesel have shown that the fuel works in cars just as well as any conventional petroleum diesel. The fleet tests, conducted by the VTT Technical Research Center of Finland, were started in May last year and ran until early 2014. (Earlier post.)

The UPM BioVerno diesel fleet tests focused on investigating UPM’s renewable diesel in terms of fuel functionality in engine and fuel consumption. The tests were conducted with a fuel blend including 20% UPM BioVerno and 80% fossil diesel. With this blend fuel consumption matched the consumption of fossil diesel.

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Neste Oil and DONG Energy partner on renewable diesel and jet fuels from ag residues via microbial oil

February 28, 2014

Neste Oil, the world’s largest producer of premium-quality renewable fuels, is working with DONG Energy, one of the leading energy groups in Northern Europe, to develop an integrated process to produce renewable diesel and aviation fuel derived from agricultural residues.

DONG Energy’s Inbicon technology will be used in the first part of the process to pre-treat biomass and produce cellulosic sugars that can then be converted into microbial oil with Neste Oil’s technology (earlier post). Microbial oil can be used as a feedstock for Neste’s NExBTL process for premium-quality renewable fuels such as renewable diesel and renewable aviation fuel.

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DOE to issue funding opportunity for bioenergy technologies; outliers to current multi-year program plan

February 13, 2014

The US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) intends to issue, on behalf of the Bioenergy Technologies Office (BETO), a Funding Opportunity Announcement (DE-FOA-0000974) entitled “Bioenergy Technologies Incubator”.

BETO’s mission is to engage in R&D and demonstration at increasing scale activities to transform renewable biomass resources into commercially viable, high-performance biofuels, and bioproducts and biopower that enable biofuel production. To accomplish this mission, BETO develops a multi-year program plan (MYPP) to identify the technical challenges and barriers that need to be overcome. These technical challenges and barriers form the basis for BETO to issue funding opportunities announcements (FOAs) for financial assistance awards in these specific areas.

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Navigant Research forecasts 58% growth in global biofuels consumption by 2022; biodiesel and drop-in fuels gain market share

February 05, 2014

In a new report, “Biofuels for Transportation Markets”, Navigant Research forecasts that global demand for biofuels in the road transportation sector will grow from representing almost 6% of the liquid fuels market in 2013 to roughly 8% by 2022. Of that 8%, 8% will consist of advanced drop-in fuels, according to the research firm. Navigant forecasts that global biofuels consumption in the road transportation sector will grow from more than 32.4 billion gallons per year (BGPY) in 2013 to more than 51.1 BGPY in 2022—an increase of 58%.

Overall, Navigant forecasts that global retail sales of all liquid fuels for the road transportation sector will grow from more than $2.6 trillion in 2013 to more than $4.5 trillion in 2022 (73% growth).

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DOE to award up to $12M for technologies to produce renewable carbon fiber from biomass

February 04, 2014

The US Department of Energy (DOE) will award (DE-FOA-0000996) up to $12 million in funding to advance the development of a cost-competitive pathway to produce high-performance carbon fiber for vehicle lightweighting from renewable non-food biomass. Reducing a vehicle’s weight by just 10% can improve fuel economy by 6% to 8%.

Carbon fiber composites are lightweight, yet strong, materials that can greatly improve vehicle fuel efficiency when incorporated into structural and non-structural components. Carbon fibers are polymers that are typically made from petroleum and natural gas feedstocks (propylene and ammonia, respectively) that react to form acrylonitrile (ACN) which is then polymerized and spun into polyacrylonitrile (PAN).

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UC Davis process produces gasoline-range hydrocarbons from biomass-derived levulinic acid; field-to-tank yield of >60% claimed

Mascal
GC-MS chromatogram of the liquid products obtained after hydrodeoxygenation of angelica lactone dimer. Source: Mascal et al. SI. Click to enlarge.

Researchers at the University of California, Davis have developed a process for the production of branched C7–C10 hydrocarbons in the gasoline volatility range from biomass-derived levulinic acid with good yield, operating under relatively mild conditions, with short reaction times.

Considering that levulinic acid is available with more than 80% conversion from raw biomass, a field-to-tank yield of drop-in, cellulosic gasoline of more than 60% is possible, the researchers claimed. A paper on their work is published in the journal Angewandte Chemie International Edition; UC Davis has filed provisional patents on the process, and is making it available for licensing.

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AVA Biochem begins commercial-scale production of 5-HMF from biomass using HTC

February 03, 2014

AVA Biochem in Muttenz (Switzerland) has begun commercial-scale production of 5-(hydroxymethyl)furfural (5-MHF) from biomass at its Biochem-1 facility using a modified version of a hydrothermal carbonization (HTC) process developed by the Karlsruhe Institute of Technology (KIT). 5-HMF is a platform chemical that can serve as a precursor for various fuels and plastics. (Earlier post.)

In the first phase, AVA Biochem will produce up to 20 tonnes of biomass-derived 5-HMF per year. Various levels of purity—up to 99.9%—are now available for delivery.

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Boeing, UAE partners make progress with oilseed halophytes as feedstock for renewable jet fuel; desert plants fed by seawater

January 23, 2014

Boeing and research partners in the United Arab Emirates have made breakthroughs in sustainable aviation biofuel development, finding that desert plants fed by seawater (the oilseed-producing halophyte Salicornia bigelovii) can produce biofuel more efficiently than other well-known feedstocks. (Earlier post.) The Sustainable Bioenergy Research Consortium (SBRC), affiliated with the Masdar Institute of Science and Technology in Abu Dhabi, will test these findings in a project that could support biofuel crop production in arid countries, such as the UAE.

S. bigelovii is a leafless, C3, succulent annual salt marsh plant that produces an oilseed on seawater irrigation in coastal desert environments; the oil from the seeds is suitable for biofuel production. Yields on seawater are similar to conventional oilseeds under ideal conditions. SBRC research also found that the entire shrublike plant (i.e., its lignocellulosic biomass as well as the the oil) can be turned into biofuel effectively.

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Global Bioenergies to collaborate with Audi on development of drop-in bio-isooctane

January 21, 2014

Global Bioenergies (GBE), a leading developer of one-step fermentation processes for the direct and cost-efficient transformation of renewable resources into light olefins (earlier post), has signed a collaboration agreement with Audi on the development of bio-isooctane—a high-performance drop-in biofuel for gasoline engines—derived from bio-isobutene. In 2011, GBE had announced an agreement “with a major German car manufacturer” regarding an undisclosed application of GEB’s technology. (Earlier post.)

Under the agreement, GBE will supply Audi with isooctane derived from isobutene produced at its new pre-commercial pilot system at the Fraunhofer CBP in Leuna. (Earlier post.) During the two-year collaboration, this agreement also foresees the possibility for Audi to acquire shares of Global Bioenergies corresponding to less than 2% of its capital.

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California Energy Commission to award up to $24M for new biofuel projects

January 17, 2014

The California Energy Commission announced the availability of up to $24 million in grant funds for the development of new, or the modification of existing, California-based biofuel production facilities that can sustainably produce low-carbon transportation fuels. (PON-13-609) Eligible biofuels are diesel substitutes, gasoline substitutes, and biomethane as defined in the solicitation.

The allocation of funds by fuel category is: Diesel Substitutes – $9.0 million; Gasoline Substitutes – $9.0 million; and Biomethane – $6.0 million. The Energy Commission will conduct two rounds of scoring. The first round of scoring will fund at least $4.027 million in passing projects; remaining funds will be applied to the second round of scoring.

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UW-Madison team develops high-yield non-enzymatic process for production of sugars from biomass using GVL

Researchers at the University of Wisconsin-Madison, led by Dr. James Dumesic, have developed a process for for the non-enzymatic production of sugars from biomass using γ-valerolactone (GVL) itself derived from biomass. A paper on their work, which was funded by the National Science Foundation and the US Department of Energy’s Great Lakes Bioenergy Research Center (GLBRC), is published in the journal Science.

Using a solvent mixture of biomass-derived GVL, water, and dilute acid (0.05 weight percent H2SO4), they produced soluble carbohydrates from corn stover, hardwood, and softwood at high yields (70 to 90%) at laboratory scale. The sugars can then be chemically or biologically upgraded into biofuels. With support from the Wisconsin Alumni Research Foundation (WARF), the team will begin scaling up the process later this year.

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DEINOVE produces ethanol at 9% titer with its optimized Deinococcus bacteria

January 16, 2014

DEINOVE, a technology company that designs, develops and markets a new generation of industrial processes based on optimized Deinococci bacteria, has produced ethanol at a titer of 9% via its fermentation of biomass sugars in 20L pre-industrial fermentors. In September 2012, the company had reported that its optimized strain of Deinococcus generated ethanol from wheat-based biomass with a titer of 3%. (Earlier post.)

The 9% content v/v (volume/volume)—equal to 7.2% wt/v (weight/volume)—exceeds the 5% alcohol content wt/v considered to be the threshold for industrial exploitation of a process for 2nd generation biofuels, the company said. The obtained performance is gradually approaching the maximum theoretical yield, the company added. The use of Deinoccoccus offers several benefits:

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Study cautions on sole focus on energy crop biomass yield; perennial grasslands deliver greater ecosystems services than corn

January 14, 2014

A study by a team from the DOE’s Great Lakes Bioenergy Center has concluded that focusing on the yield of an energy crop alone can come at the expense of many other environmental benefits. The study, published as an open access paper in the Proceedings of the National Academy of Sciences (PNAS), found that switchgrass and prairie plantings harbored significantly greater plant, methanotrophic bacteria, arthropod, and bird diversity than corn.

Although the corn biomass yield was higher, all other ecosystem services, including methane consumption, pest suppression, pollination, and conservation of grassland birds, were higher in perennial grasslands.

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KiOR halts cellulosic fuels production at Columbus in Q1 to optimize production; need for R&D to boost yield and cut costs

January 13, 2014

In a conference call on Friday, KiOR President and CEO Fred Cannon said that the company will halt production of cellulosic gasoline, diesel and fuel oil at its plant in Columbus, Mississippi in order to implement a number of optimization projects it identified as necessary—based on its experience in 2013—to optimize production to enhance yield, throughput and operability and to minimize cost.

In December 2013, Cannon had said that KiOR would operate the Columbus plant “on a limited campaign basis only” to verify the impact of improvements. (Earlier post.) In the Friday call, he said that the company would only operate the Columbus facility during Q1 “only to the extent we want to test and prove optimization projects.” The current execution plan for 2014 is to focus exclusively on bringing the plant to its nameplate basis, and further to develop yield and process efficiency through R&D.

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NREL/UGA study finds microbial enzyme digests cellulose ~2x fast as current leading commercial cellulase; implications for biofuels cost

January 04, 2014

Researchers at the Energy Department’s National Renewable Energy Laboratory (NREL) and the University of Georgia have discovered that an enzyme from a microorganism first found in the Valley of Geysers on the Kamchatka Peninsula in Russia in 1990 can digest cellulose almost twice as fast as Cel7A, the current leading component cellulase enzyme on the market.

The high-performance enzyme CelA was discovered 15 years ago, but until this recent work, all that was known about this complex protein was its general architecture and that it had the ability to degrade cellulose. If it continues to perform well in larger tests, it could help drive down the price of making lignocellulosic fuels, from ethanol to other biofuels that can be dropped into existing infrastructure. A paper reporting this finding appears in the journal Science.

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ARPA-E piloting crowdsourced energy challenge in biofuels

January 02, 2014

The US Department of Energy’s (DOE’s) Advanced Research Projects Agency - Energy (ARPA-E) is piloting a crowdsourced energy challenge, focused on ARPA-E’s PETRO (Plants Engineered To Replace Oil) program, which aims to increase the viability of biofuels by investing in research to double the energy-capture-per-unit area from that of corn ethanol. (Earlier post.)

The challenge asks “solvers” to present a detailed description and scientific rationale for a simple, rapid, and minimally invasive method to determine the energy content of plant material. Winners could receive up to $30,000.

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MSU-Ford team evaluates 12 biofuel compounds for effects on cold flow properties of diesel and jet blends

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Cloud point temperatures of a high aromatic diesel (HAD) in mixtures with various biofuel compounds. Lown et al. Click to enlarge.

Researchers from Michigan State University and Ford Motor Company's Research and Advanced Engineering Group recently tested 12 potential biofuel compounds containing oxygen in different functional groups in mixtures with three diesel fuels and one jet fuel to determine the effects of the functional groups on low-temperature fuel properties.

Groups evaluated included diesters, esters, ketones and ethers; alkanes were used for comparison. Fuels included a standard #2 US diesel (USD); a European standard diesel (ESD); and a high aromatic diesel (HAD), as well as JP-8 donated by the US Air Force.

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Field trials with genetically modified poplars shows potential for efficient conversion to sugars but with impact on biomass yield

December 31, 2013

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Ethanol yield (g/L) for the Belgian and French field trials. Van Acker et al. Click to enlarge.

The results of field trials with genetically modified poplar trees in Belgium and France shows that the wood of the modified poplar trees—down-regulated for cinnamoyl-CoA reductase (CCR), an enzyme in the lignin biosynthetic pathway—improved saccharification yield—i.e., it can be more efficiently converted into sugars for producing bio-based products such as bio-plastics and bio-ethanol.

However, the study, published as an open access paper in Proceedings of the National Academy of Sciences (PNAS), also found that strong down-regulation of CCR also affected biomass yield. The team, from Belgium, France and the US, led by researchers from VIB and Ghent University, concluded that CCR down-regulation may become a successful strategy to improve biomass processing if the yield penalty can be overcome.

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KiOR expects to produce 920K gallons of cellulosic biofuels by year end; short-term focus on economics

December 24, 2013

Cellulosic gasoline and diesel company KiOR, Inc. expects that, given current and anticipated operations through the remainder of the year, its Columbus, Mississippi facility will produce approximately 410,000 gallons of renewable fuel during the fourth quarter of 2013, bringing full year production total from the facility to approximately 920,000 gallons. (Earlier post.) The ratio between gasoline, diesel and fuel oil expected to be produced during the year is approximately 35% gasoline, 40% diesel, and 25% fuel oil.

In August, the US Environmental Protection Agency (EPA) finalized the 2013 percentage standards for four fuel categories that are part of the Renewable Fuel Standard (RFS) program. With the final 2013 overall volumes and standards requiring 16.55 billion gallons of renewable fuels to be blended into the US fuel supply (a 9.74% blend), EPA projected 6 million gallons (0.004%) of cellulosic biofuels. Of that, EPA projected the bulk to come from the KiOR Columbus plant (5-6 million gallons of renewable gasoline and diesel).

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ICCT suggests minor changes to Fed tax policy to cut higher investment risk of 2nd-gen biofuels and advance the industry

December 22, 2013

Minor changes to an existing Federal tax incentive for second-generation biofuels (i.e., biofuel made from cellulose, algae, duckweed, or cyanobacteria) could mitigate the current elevated risk of investing in the industry that is retarding its advance, according to a new paper by a team from the International Council on Clean Transportation (ICCT) and Johns Hopkins University. Some of the ICCT recommendations are mirrored in the recently released Baucus draft proposal for tax reform (earlier post), notes Dr. Chris Malins of the ICCT, one of the study’s co-authors.

Previous studies have attempted to explain the slow commercialization of cellulosic and algal biofuels qualitatively, however few have presented financial analysis across the sector, the authors observe. Using publicly available financial data, they applied investment analysis tools (the capital assets pricing model, CAPM) that are generally not applied to this space in order to develop a more rigorous understanding of the investment risk in the industry.

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Ford brings cellulose fiber reinforced thermoplastic to 2014 Lincoln MKX

December 20, 2013

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Early version of CRP-based armrest piece under development. Source: Weyerhaeuser. Click to enlarge.

A three-year collaboration between Lincoln, Weyerhaeuser and auto parts supplier Johnson Controls has resulted in the creation of a tree-based, renewable alternative to fiberglass for use in auto parts. (Earlier post.) The 2014 Lincoln MKX features the use of Cellulose Reinforced Polypropylene (called “THRIVE” composites by Weyerhaeuser) in the floor console armrest substrate—a structural piece located within the center console armrest.

Pieces made from CRP are roughly 6% lighter, and decrease the reliance on less-environmentally friendly fiberglass parts. The use of Cellulose Reinforced Polypropylene in the MKX, while relatively small, marks an advancement that has the potential to play a more impactful role in the future, suggested Dr. Ellen Lee, plastics research technical expert for Ford Motor Company. Ford engineers are using the company’s development and deployment of soy-based foam as an model—i.e., starting out small, then improving the material and widening the application.

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BASF to partner with Renmatix for the production of industrial sugars from biomass; bio-based precursors for chemicals and fuels

December 18, 2013

BASF and US-based supercritical hydrolysis company Renmatix Inc. signed a non-exclusive joint development agreement to scale up the Renmatix Plantrose process for the production of industrial sugars based on lignocellulosic biomass. The parties have also agreed to key financial terms for future commercial licenses, which BASF can exercise at its discretion. The collaboration follows BASF’s $30 million investment in Renmatix in January 2012. (Earlier post.)

The Plantrose technology developed by Renmatix enables industrial sugar to be produced, at competitive costs, from a variety of non-edible biomass (lignocellulose) sources. The proprietary process breaks down lignocellulosic sources (e.g. wood, agricultural-residues or straw) into industrial sugars using supercritical water (water at high temperature and pressure).

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USDA and DOE award $8.1M to 7 biomass genomics research projects for biofuel and bioenergy

December 12, 2013

The Department of Energy’s Office of Science, Office of Biological and Environmental Research (DOE-BER), and the US Department of Agriculture National Institute of Food and Agriculture’s Agriculture and Food Research Initiative (USDA-NIFA) are jointly awarding $8.1 million in research grants to 7 projects using genomics to develop non-food feedstocks that can be used for bioenergy. The awards continue a commitment by the two agencies begun in 2006 to conduct fundamental research in biomass genomics that will establish a scientific foundation to facilitate and accelerate the use of woody plant tissue for bioenergy and biofuel. (Earlier post.)

In 2013, DOE will provide $6.1 million in funding over 3 years, while USDA will award $2 million over 3 years. Overall, the USDA and DOE projects are designed to improve biomass—including selected trees and grasses—to be grown for biofuels by increasing their yield, quality and ability to adapt to extreme environments. Researchers will rely on the most advanced techniques of modern genomics to develop breeding and other strategies to improve the crops. The research will be conducted on switchgrass, poplar and pine, among other plants.

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Amyris and Total form joint venture to produce and market renewable diesel and jet fuel

December 05, 2013

Amyris, Inc. and Total have formed Total Amyris BioSolutions B.V., a 50-50 joint venture that now holds exclusive rights and a license under Amyris’s intellectual property to produce and market renewable diesel and jet fuel from Amyris’s renewable farnesene. (Earlier post.) Total is Amyris’ largest investor, holding approximately 18% of its outstanding common stock, and is committed to the development of next-generation renewable fuels from biomass.

Amyris’ synthetic biology platform enables the modification of the genetic pathways of microorganisms, primarily yeast, to turn them into living factories to produce target molecules via fermentation. The primary biological pathway within the microbe Amyris currently uses to produce target molecules is the isoprenoid pathway.

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EPA proposes reduction in cellulosic biofuel and total renewable fuel standards for 2014

November 15, 2013

The US Environmental Protection Agency (EPA) is proposing a reduction in the cellulosic biofuel and total renewable fuel standards (RFS) for 2014. Once the proposal is published in the Federal Register, it will be open to a 60-day public comment period.

Specifically, EPA is proposing a total renewable fuel target of 15.21 billion gallons; the final 2013 overall volumes and standards require 16.55 billion gallons; the original target as specified in the Clean Air Act is 18.15 billion gallons. (Earlier post.) EPA is setting the troublesome cellulosic biofuel target at 17 million gallons—significantly lower than the Clean Air Act (CAA) target of 1.75 billion gallons—but an increase from the 6.0 million gallons specified for 2013. This reflects EPA’s current estimate of the amount of cellulosic biofuel that will actually be produced in 2014, but EPA will consider public comments before setting the final cellulosic standard.

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Axens, IFPEN and Michelin launch research partnership on synthetic rubber production channel using biomass; €52M over 8 years

November 11, 2013

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Overview of BioButterfly process steps. Click to enlarge.

Axens, IFP Energies nouvelles (IFPEN) and Michelin have launched a plant chemistry research partnership that aims to develop and bring to market a process for producing bio-sourced butadiene, or bio-butadiene. Butadiene is a chemical intermediate derived from fossil resources that is used in the production of synthetic rubber. Some 60% of global output is for the tire industry.

In response to the need to find sustainable alternative sourcing channels for elastomers, the BioButterfly process will make it possible to produce innovative, more environmentally-friendly synthetic rubber. The bio-butadiene produced will support continued innovation in procuring high performance rubber for tires.

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Battelle evaluating pilot-scale mobile catalytic pyrolysis unit to convert biomass to bio-oil

November 08, 2013

Battelle researchers have developed a mobile catalytic pyrolysis unit that converts biomass materials such as wood chips or agricultural waste into bio-oil. As currently configured, the Battelle-funded unit converts one ton of pine chips, shavings and sawdust into as much as 130 gallons of wet bio-oil per day.

The bio-oil then can be upgraded by hydrotreatment into a gas/diesel blend or jet fuel. Conversion of the bio-oil to an advanced biofuel is a key element of Battelle’s (earlier post)—and many others’—research. Testing of the bio-based gasoline alternative produced by Battelle suggests that it can be blended with existing gasoline and can help fuel producers meet their renewable fuel requirements.

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GE Aviation signs 10-year supply agreement for biomass FT jet fuel for engine testing; baseline of 500,000 gallons per year

November 07, 2013

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Schematic of the DG Energy facility that will produce the cellulosic synthetic jet fuel. Click to enlarge.

GE Aviation, which consumes more than 10 million gallons of jet fuel annually at its engine testing centers, has signed an agreement to purchase cellulosic synthetic biofuel from The D’Arcinoff Group (DG), based in Washington, DC, to be used for production and development testing of GE jet engines, starting in 2016.

The 10-year agreement calls for GE’s baseline commitment of 500,000 gallons annually of the low-emissions jet fuel to be used at the company’s main jet engine testing facility in Peebles, Ohio. Options are in place to order up to 10 million gallons annually of the synthetic biofuel, which be be produced via the gasification of biomass to produce syngas, followed by Fischer-Tropsch conversion.

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USDA awards nearly $10M for research on using beetle-killed trees as feedstock for on-site thermochemical conversion technologies

November 06, 2013

The US Department of Agriculture (USDA) awarded nearly $10 million to a consortium of academic, industry and government organizations led by Colorado State University (CSU) and their partners to research using insect-killed trees in the Rockies as a sustainable feedstock for bioenergy. Specifically, the team will explore recent advances in scalable thermochemical conversion technologies, which enable the production of advanced liquid biofuel and co-products on-site.

There are many benefits to using beetle-killed wood for renewable fuel production. It requires no cultivation, circumvents food-versus-fuel concerns and likely has a highly favorable carbon balance. However, there are some challenges that have been a barrier to its widespread use. The wood is typically located far from urban industrial centers, often in relatively inaccessible areas with challenging topography, which increases harvest and transportation costs. In addition to technical barriers, environmental impacts, social issues and local policy constraints to using beetle-killed wood and other forest residues remain largely unexplored.

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PNNL team devises probe enabling rapid design of enzyme cocktails for maximum biomass deconstruction for biofuels

November 04, 2013

A team at Pacific Northwest National Laboratory (PNNL) has devised an activity-based probe that can rapidly identify optimal conditions for the maximum enzymatic deconstruction of lignocellulose. The probe approach promises to facilitate the rapid production of enzyme cocktails for high-efficiency lignocellulose deconstruction to support high-yield biofuel production, the researchers report in a paper in the RSC journal Molecular BioSystems.

The findings open the possibility that laboratory research that now takes months could be reduced to days, and that scientists will be able to assess more options for biofuel development than is possible today.

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DOE BETO issues request for information on advanced biofuel, bioproducts and biopower validation and deployment

October 31, 2013

The Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) Bioenergy Technologies Office (BETO) is soliciting feedback from industry, academia, research laboratories, government agencies, and other stakeholders on issues related to advanced biofuel, bioproducts, and biopower technology validation and potential deployment strategies. (DE-FOA-0001013)

BETO’s mission is to develop and transform biomass resources into commercially viable, high performance biofuels, bioproducts, and biopower through targeted research, development, demonstration, and deployment supported through public and private partnerships. Specific goals are: 1) through R&D, make cellulosic biofuels competitive with petroleum-based fuels at a modeled cost for mature technology of $3 per gallon of gasoline equivalent (GGE) ($2011) based on EIA projected wholesale prices in 2017; and 2) help create an environment conducive to maximizing the production and use of biofuels by 2022.

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Brookhaven researchers identify key genes for significantly increasing oil content in plant leaves

October 21, 2013

Scientists at the US Department of Energy’s Brookhaven National Laboratory have identified two key genes required for oil production and accumulation in plant leaves and other vegetative plant tissues.

In separate papers published in the journals The Plant Journal and The Plant Cell, they report that overexpression of these genes resulted in significantly increased oil content in leaves, the most abundant sources of plant biomass. In one test plant, they achieved almost twice the oil yield by weight that can be obtained from canola seeds. The finding that could have important implications for increasing the energy content of plant-based foods and renewable biofuel feedstocks.

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USDA announces availability of $181M to support development of advanced biofuels projects

US Department of Agriculture Secretary Tom Vilsack announced the availability of $181 million via its Biorefinery Assistance Program to develop commercial-scale biorefineries or retrofit existing facilities with appropriate technology to develop advanced biofuels.

The Biorefinery Assistance Program was created through the 2008 Farm Bill and is administered by USDA Rural Development. It provides loan guarantees to viable commercial-scale facilities to develop new and emerging technologies for advanced biofuels. Eligible entities include Indian tribes, State or local governments, corporations, farmer co-ops, agricultural producer associations, higher education institutions, rural electric co-ops, public power entities or consortiums of any of the above.

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Univ. of Illinois team argues that renewable fuel standard needs to be modified, not repealed

October 16, 2013

A policy analysis by two University of Illinois researchers argues that Congress should minimally modify, not repeal, the Renewable Fuel Standard (RFS). In the study, law professor Jay P. Kesan and Timothy A. Slating, a regulatory associate with the Energy Biosciences Institute, argue that RFS mandates ought to be adjusted to reflect current and predicted biofuel commercialization realities; that its biofuel categories be expanded to encompass all emerging biofuel technologies; and that its biomass sourcing constraints be relaxed.

In the paper, to be published in the NYU Environmental Law Journal, Kesan and Slating contend that the RFS can serve as a “model policy instrument” for the federal support of all types of socially beneficial renewable energy technologies.

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UCLA engineers develop new metabolic pathway for more efficient conversion of glucose into biofuels; possible 50% increase in biorefinery yield

October 01, 2013

Researchers at UCLA led by Dr. James Liao have created a new synthetic metabolic pathway for breaking down glucose that could lead to a 50% increase in the production of biofuels. The new pathway is intended to replace the natural metabolic pathway known as glycolysis, a series of chemical reactions that nearly all organisms use to convert sugars into the molecular precursors that cells need. The research is published in the journal Nature.

Native glycolytic pathways—a number of which have been discovered—oxidize the six-carbon sugar glucose into pyruvate and thence into two-carbon molecules known acetyl-CoA for either further oxidation or biosynthesis of cell constituents and products, including fatty acids, amino acids, isoprenoids and alcohols. However, the two remaining glucose carbons are lost as carbon dioxide.

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KIT’s fast biomass pyrolysis to liquids bioliq plant produces first gasoline

September 30, 2013

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The multi-stage bioliq process produces high-quality synthetic fuels from straw and other biogenous residues. Graphic: N. Dahmen, KIT/IKFT. Click to enlarge.

The synthesis stage of Karlsruhe Institute of Technology’s (KIT’s) multi-stage bioliq pilot plant has begun operation and has produced biogasoline. All stages of the bioliq process—flash pyrolysis, high-pressure entrained-flow gasification, and now synthesis—have now been realized and the project will now be completed by testing the entire process chain and optimizing it for the large industrial scale.

As soon as all stages of the bioliq process will have been linked, the pilot plant will supply high-quality fuel from straw, probably in mid-2014. The complete bioliq process (Biomass to Liquid Karlsruhe) comprises four stages (earlier post):

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KAIST team engineers novel pathway for direct production of biogasoline by E. coli bacteria

A team at the Korea Advanced Institute of Science and Technology (KAIST) has developed a a novel strategy for microbial gasoline production through the metabolic engineering of Escherichia coli. The team engineered engineered platform E. coli strains that are capable of producing short-chain alkanes (SCAs; i.e., gasoline); free fatty acids (FFAs); fatty esters; and fatty alcohols via the fatty acyl (acyl carrier protein (ACP)) to fatty acid to fatty acyl-CoA pathway.

As reported in their paper in Nature, the final engineered strain produced up to 580.8 mg per liter of SCAs consisting of nonane (327.8 mg l−1), dodecane (136.5 mg l−1), tridecane (64.8 mg l−1), 2-methyl-dodecane (42.8 mg l−1) and tetradecane (8.9 mg l−1), together with small amounts of other hydrocarbons.

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KiOR seeks to double cellulosic fuels production at Columbus plant; $50M in from Khosla for Columbus II

September 26, 2013

Cellulosic gasoline and diesel company KiOR, Inc. is pursuing plans to double production capacity at its Columbus, Mississippi, facility through construction of a second facility incorporating KiOR’s commercially proven technology. KiOR estimates that the Columbus II project will cost approximately $225 million; will break ground within 90 days of it raising sufficient equity and debt capital to commence the project; and will take approximately 18 months to construct and start up.

Once completed with its latest technology improvements, KiOR expects that the Columbus II project will allow each Columbus facility to achieve greater yields, production capacity and feedstock flexibility than the original design basis for the existing Columbus facility, enabling KiOR to more quickly make progress towards its long-term goal of 92 gallons per bone dry ton of biomass.

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U-Mich researcher’s first-principles analysis challenges conventional carbon accounting for biofuels; implications for climate policy

September 24, 2013

Decicco1
System boundaries (red line) schematic for liquid fuel carbon balance. For biofuels, because biogenic carbon is automatically credited within a product lifecycle, the boundary effectively excludes vehicle end-use CO2 emissions. DeCicco 2013. Click to enlarge.

In a paper that could have a significant impact on climate policies for transportation fuels, Dr. John M. DeCicco of the Energy Institute at the University of Michigan, Ann Arbor presents a rigorous first-principles analysis that undermines the common “biofuels recycle carbon” argument.

Published in the journal Climactic Change, the open access paper shows that while the carbon mitigation challenge for liquid fuels has been seen—incorrectly—as a fuel synthesis and substitution problem, it is in reality a net carbon uptake problem. Accordingly, DeCicco concludes, strategies should move away from a downstream focus on replacing fuel products to an upstream focus on achieving additional CO2 uptake through the most cost-effective and least damaging means possible. “All parties with an interest in the issue are advised to rethink their priorities accordingly,” he finishes.

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Novozymes and Raízen to collaborate on cellulosic ethanol in Brazil

September 18, 2013

Novozymes has entered into a collaboration agreement with Brazil’s largest sugarcane crusher, Raízen Energia S/A (the $12-billion joint venture between Shell and Cosan founded in 2011). (Earlier post.) As part of the agreement, Novozymes will supply enzyme technology to Raízen’s first commercial-scale cellulosic ethanol plant in Brazil, scheduled to be operational by end 2014.

The plant will be a bolt-on facility to Raízen’s Costa Pinto sugarcane mill in the state of São Paulo and will have the capacity to produce 40 million liters (10.5 million gallons US) of cellulosic ethanol a year from sugarcane bagasse and straw. The agreement also provides for Novozymes to supply enzyme technology to Raízen’s second cellulosic ethanol plant, should such a plant be constructed.

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New route for upgrading bio-oil to biogasoline via molecular distillation and catalytic cracking

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Bio-oil-graded upgrading route based on molecular distillation and catalytic cracking. Credit: ACS, Wang et al. Click to enlarge.

A team at Zhejiang University, China, has developed a novel cracking technology for the upgrading of bio-oil, produced by the fast pyrolysis of biomass, to biogasoline. In a paper published in the ACS journal Energy & Fuels, they report that the co-cracking of the distilled fraction (DF) from bio-oil molecular distillation and ethanol produced a well-defined gasoline phase, and that both increasing the reaction temperature and adopting pressurized cracking benefited the yield and quality of this gasoline phase.

Under optimum reaction temperature and pressure, co-cracking of the DF and ethanol, with different weight ratios, all generated high-quality gasoline phases. Under 400 °C and 2 MPa, co-cracking of DF and ethanol with a weight ratio of 2:3 produced a high gasoline phase yield of 25.9 wt %; the hydrocarbon content in this gasoline phase was 98.3%. CO2, CO, and C3H8 (propane) were the main gaseous products, and a low coke yield of 3.2 wt % was achieved.

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European Parliament backs 6% cap on land-based biofuels, switchover to advanced biofuels; no mandate

September 11, 2013

In a vote on draft legislation, the European Parliament has backed a cap on the use of biofuels produced from starch-rich crops, sugars, oil and other crops grown on land and a speedy switchover to new biofuels from alternative sources such as seaweed and waste. The measures aim to reduce greenhouse gas emissions that result from the turnover of agricultural land to biofuel production.

According to current legislation, member states must ensure that renewable energy accounts for at least 10% of energy consumption in transport by 2020. In the adopted text, MEPs (Members of the European Parliament) say land-based biofuels should not exceed 6% of the final energy consumption in transport by 2020. (The proposal by the European Commission on which the draft legislation was based had suggested an even lower 5% cap.)

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Neste Oil and Raisioagro to research the potential of straw as a renewable diesel feedstock via microbial oil

September 02, 2013

Neste Oil, developer of the NExBTL process for renewable diesel, and agritrader Raisioagro have launched a research project to investigate the potential of straw as a raw material for producing NExBTL renewable diesel via Neste’s microbial oil technology. (Earlier post.)

Large quantities of waste straw are produced as agricultural residue in Finland and elsewhere, and only a small proportion of this is currently used. The project will study whether a logistically effective and efficient, large-scale straw harvesting chain could be created in Finland. The researchers will also look at the storability of straw for use as an industrial input year-round. The project will be carried out by TTS, a research, development, and training organization.

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