EPA is granting 31 small refinery RFS exemptions for the 2018 compliance year, as well as 6 denials. The estimated volume of gasoline and diesel exempted is 13,420 million gallons; the estimated renewable volume obligations (RVO) exempted is 1,430 million RINs. The Clean Air Act (CAA) exempted small refineries from... Read more →

Commercially viable cellulosic ethanol plants has proven devilishly difficult to bring to fruition. The primary outlier from the list of efforts that have shut down over the past few years is POET/DSM’s Project Liberty (earlier post). In an editorial in the journal Biofuels, Bioproducts and Biorefining, two POET team members... Read more →

Using a protein produced by a fungus that lives in the Amazon, Brazilian researchers have developed a molecule capable of increasing glucose release from biomass for fermentation. The findings are published in an open-access paper the journal Scientific Reports. One of the main challenges of second-generation biofuel production is identifying... Read more →

Researchers in China have developed a one-pot process for the direct conversion of cellulose to ethanol with a yield of 43.2 C% over a multifunctional catalyst Mo/Pt/WOx, which effectively catalyzes the tandem reactions of cellulose to ethylene glycol (EG) and then to ethanol. A paper on their work is published... Read more →

The US Department of Energy (DOE) has awarded a $2.2-million grant to researchers at Texas A&M AgriLife Research to investigate potential discoveries for waste products used in lignocellulosic biofuel production, turning them into valuable agents used in producing commercial products such as biodiesel and asphalt binding agents. Dr. Joshua Yuan,... Read more →

The US Environmental Protection Agency (EPA) Administrator Scott Pruitt issued a proposed rule under the Renewable Fuel Standards (RFS) program that would set the minimum amount of renewable fuels that must be supplied to the market in calendar year 2019, as well as the biomass based diesel volume standard for... Read more →

Researchers have discovered a novel enzyme (a β-glucosidase) in microorganisms living in the Brazilian Amazon that could boost efficiency of the sugarcane bagasse saccharification process, which accounts for up to 50% of the global costs of cellulosic ethanol production. The team isolated, characterized and reproduced the enzyme, proving it to... Read more →

The US Department of Energy (DOE) will award up to $3 million in funding for advanced biofuels, bioenergy, and biobased products available through the Biomass Research and Development Initiative (BRDI). DOE has selected two projects from the University of Tennessee and Northwestern University that will receive between $1 million to... Read more →

Researchers from the Dalian Institute of Chemical Physics in China have developed a new catalyst with enhanced selectivity for a chemocatalytic approach they developed earlier for the production of cellulosic ethanol. In the original process, cellulose is first converted into methyl glycolate (MG) in methanol with the promotion of a... Read more →

Cellulose—the primary building block of the walls of most plant cells—is synthesized at the plasma membrane by cellulose synthase complexes (CSCs). The ability to deliver CSCs to discrete sites at the cell surface is critical for cellulose synthesis. Now,researchers at Penn State have identified the major steps in the process... Read more →

By studying and comparing the workhorse cellulose-degrading enzymes (cellobiohydrolases) of two fungi, researchers from the Energy Department’s National Renewable Energy Laboratory (NREL) have pinpointed regions on these enzymes that can be targeted via genetic engineering to help break down cellulose faster. A newly published open-access paper in Nature Communications describes... Read more →

Aemetis announced that it successfully built and operated an integrated cellulosic ethanol demonstration unit for more than 120 days of continuous operations with 94% uptime, meeting the requirements for a federal USDA 9003 Biorefinery Assistance Program guaranteed loan. In partnership with its key technology providers InEnTec and LanzaTech, Aemetis successfully... Read more →

Xinhua reports that China’s State Administration of Grain (SAG) said that China will expand production and consumption of bioethanol fuel this year as the country seeks more channels to use corn and grain stockpiles. Years of government support for corn farmers—paying Chinese corn producers more than twice the international price... Read more →

Canada-based Enerkem Inc., a leading waste-to-biofuels and chemicals producer, has completed a C$280-million (US$223 million) investment round—its largest to date. In addition to new investors BlackRock and Sinobioway, existing investors also participated in this financing. In January, Enerkem signed an agreement with Sinobioway Group worth more than C$125 million (US$100... Read more →

The Australian Renewable Energy Agency (ARENA) is awarding $11.9 million (US$9 million) in funding for Australian biofuel company Ethanol Technologies Limited (Ethtec) to complete the development and demonstration of its advanced biofuel technology. As part of a $48-million (US$36.5 million) project, Ethtec aims to construct a $30-million (US$23-million) purpose-built pilot-scale... Read more →

UC Riverside researchers have developed a streamlined process that could finally make the ethanol production cost from abundant “second generation” plant wastes competitive with “first generation” ethanol made from sugars. A major historical barrier to low-cost production of ethanol from biomass is the low ethanol yields and titers that result... Read more →

POET-DSM Advanced Biofuels says it has achieved a major breakthrough in cellulosic biofuels production at its Project LIBERTY plant in Emmetsburg, Iowa. (Earlier post.) The company has solved the critical challenge in pretreatment, overcoming what has been the primary hurdle to commercialization for producers around the world. Project LIBERTY is... Read more →

Aemetis, Inc. announced that its Aemetis Advanced Products Keyes subsidiary signed a 20-year feedstock supply agreement to produce cellulosic ethanol at a former US Army munitions facility located in Riverbank, California, which is near the existing Aemetis biofuels plant in Keyes, California. The cellulosic ethanol biorefinery will use patented and... Read more →

Micro-organisms found in the wildfire-prone rainforests of India are an potential resources for biochemical production, as they are accustomed to the challenging conditions following a forest fire. The enzymes they produce are likely to also have a higher-than-normal resistance to the substances released from biomass in high-temperature industrial processes. An... Read more →

The Department of Energy (DOE), in partnership with Israel’s Ministry of Energy (MOE) and the Israel Innovation Authority, announced $4.8 million for five newly selected energy projects as part of the Binational Industrial Research and Development (BIRD) Energy program. The approved projects will leverage cost-share for a total project value... Read more →

Specialty chemicals company Clariant announced the approval by its Board of Directors to invest in a new full-scale commercial plant for the production of cellulosic ethanol from agricultural residues using its sunliquid technology. The new plant, with an annual production capacity of 50,000 tons, will be built in the southwestern... Read more →

The US Environmental Protection Agency (EPA) has issued a Notice of Data Availability (NODA) to provide public notice and an opportunity to comment on potential reductions in the 2018 biomass-based diesel (BBD), advanced biofuel, and total renewable fuel volumes, and/or the 2019 biomass-based diesel volume under the Renewable Fuel Standard... Read more →

Clariant, a world leader in specialty chemicals, and Enviral, the largest producer of bioethanol in Slovakia, have signed a license agreement on sunliquid cellulosic ethanol technology. Enviral has acquired a license to use Clariant’s sunliquid technology as part of its goal to realize a full scale commercial cellulosic ethanol plant... Read more →

Enerkem Inc. has started the commercial production of cellulosic ethanol. Enerkem’s facility in Edmonton, AB, Canada, is the first commercial-scale plant in the world to produce cellulosic ethanol made from non-recyclable, non-compostable mixed municipal solid waste. The company has been producing and selling biomethanol since 2016, prior to expanding production... Read more →

Aemetis has signed a Master Agreement with key exclusive rights for the use of an advanced gasification technology from InEnTec to produce cellulosic ethanol. The InEnTec gasification technology agreement is a key part of Aemetis’ strategy to produce high-value, low-carbon cellulosic ethanol from locally sourced biomass by integrating InEnTec’s patented... Read more →

Researchers at Rutgers University-New Brunswick and Michigan State University have devised a way to reduce the amount of enzymes needed to convert biomass into biofuels by designing and genetically engineering enzyme surfaces so they bind less to the lignin in biomass. This potentially could reduce enzyme costs in biofuels production.... Read more →

The U.S. Environmental Protection Agency (EPA) issued a proposed rule setting the minimum amount of renewable fuels that must be supplied to the market in calendar year 2018 under the Renewable Fuel Standards (RFS) program. EPA will issue the final rule in the fall. Relative to the levels finalized in... Read more →

Cellulosic biofuels could provide an environmentally sustainable way of meeting energy needs—but with a few important caveats, according to a new review of research by a team from the US Department of Energy-funded Great Lakes Bioenergy Research Center (GLBRC). Their paper is published in the journal Science. Although not yet... Read more →

Edeniq, Inc., a cellulosic technology company, has secured commitments for $5 million in additional equity to support existing customer workload, rapidly grow the pipeline, and roll out technology enhancements. Edeniq has raised more than $12 million over the past 12 months. Edeniq’s Pathway Technology is a proprietary, integrated platform to... Read more →

D3MAX announced the completion and shipment of its pilot plant employing its patented D3MAX cellulosic ethanol technology, installed at ACE Ethanol, LLC, in Stanley, Wisconsin. Testing of the patented D3MAX corn fiber-to-ethanol process and technology is underway with testing to be complete by June of 2017. After analyzing pilot test... Read more →

A team of chemical and biological engineers at the University of Wisconsin–Madison has developed a new chemical pathway a way to produce from biomass a valuable compound—1,5-pentanediol, a plastic precursor primarily used to make polyurethanes and polyester plastics—that they estimate could lower the cost of cellulosic ethanol by more than... Read more →

Clariant, a leading global specialty chemicals company, together with Mercedes-Benz and Haltermann Carless, a well-established HCS Group brand, tested the use of sustainable cellulosic ethanol from agricultural residues in a fleet test with Mercedes-Benz series vehicles over a period of 12 months for the first time in Germany. sunliquid 20... Read more →

Edeniq, Inc., a leading cellulosic and biorefining technology company, and Archer Daniels Midland Company (ADM) announced that the US Environmental Protection Agency has approved Little Sioux Corn Processors’ registration of its 150 million gallon per year Marcus, Iowa, ethanol plant for cellulosic ethanol production. Under the terms of its license... Read more →

A new study from the US Government Accountability Office (GAO) concludes that the Renewable Fuel Standard program will miss its advanced biofuel targets due to the the high costs of creating advanced biofuel; the relatively low price of fossil fuel; the timing and cost to bring new tech to commercial-scale... Read more →

The US Environmental Protection Agency (EPA) finalized increases in renewable fuel volume requirements across all categories of biofuels under the Renewable Fuel Standard (RFS) program. In a required annual rulemaking, the action finalizes the volume requirements and associated percentage standards for cellulosic biofuel, advanced biofuel, and total renewable fuel for... Read more →

EPA is proposing updates to the Renewable Fuels Standard (RFS) regulations and related fuels regulations to better align the standards with the current state of the renewable fuels market and to promote the use of ethanol and non-ethanol biofuels. Several of the proposed changes to the Renewable Fuel Standard program... Read more →

One of the key points of contention over the climate benefit of biofuels is the impact of land use change (LUC) associated with biofuel feedstock production. LUC results in biogeochemical (e.g., soil organic carbon) and biogeophysical (e.g., surface albedo, evapotranspiration, and surface roughness) changes. Of the biogeophysical factors, surface albedo... Read more →

The US Renewable Fuel Standard (RFS2) is intended to reduce greenhouse gas emissions from transportation. However, argues a team from the University of Minnesota in an open-access paper published in the journal Energy Policy, once the “fuel market rebound effect” is factored in, RFS2 actually increases GHG emissions when all... Read more →

Researchers at the Department of Energy’s Lawrence Berkeley National Laboratory and Sandia National Laboratories working at the Joint BioEnergy Institute (JBEI) have demonstrated that adding CO2 during the deconstruction phase of biofuel production successfully neutralizes the toxicity of ionic liquids, the room-temperature molten salt solvent used at JBEI to break... Read more →

ICM, a leading provider of products and services to the biofuel industry, is close to the marketintroduction of its patent-pending Generation 1.5 Grain Fiber to Cellulosic Ethanol Technology (Gen 1.5), which integrates a process for converting corn fiber to cellulosic ethanol with existing ethanol plants. This pathway to cellulosic ethanol... Read more →

Gevo, Inc. has entered into an agreement with Clariant Corp., one of the world’s leading specialty chemical companies, to develop catalysts to enable Gevo’s Ethanol-to-Olefins (ETO) technology. Gevo’s ETO technology, which uses ethanol as a feedstock, produces tailored mixes of propylene, isobutylene and hydrogen, which are valuable as standalone molecules,... Read more →

Aemetis, Inc. has acquired exclusive rights to LanzaTech’s patented technology for the conversion of agricultural waste, forest waste, dairy waste and construction and demolition waste (CDW) to ethanol in California. The LanzaTech gas-to-ethanol technology enables Aemetis to convert these local California biomass wastes to advanced ethanol. Aemetis is the first... Read more →

The National Renewable Energy Laboratory (NREL) updated its annual survey of US non-starch ethanol and renewable hydrocarbon biofuels producers. The 2015 Survey of Non-Starch Ethanol and Renewable Hydrocarbon Biofuels Producers provides an inventory of the domestic advanced biofuels production industry as of the end of calendar year 2015, documenting important... Read more →

A team from the US, China and India, led by researchers from Michigan State University, has developed a new liquid ammonia biomass pretreatment methodology called Extractive Ammonia (EA). EA-pretreated corn stover delivers a higher fermentable sugar yield compared to the older Ammonia Fiber Expansion (AFEX) process while using 60% lower... Read more →

A team of researchers led by Dr. Michelle O’Malley at UC Santa Barbara has identified several promising new enzyme candidates for breaking down lignocellulsoic biomass for biofuel production from relatively unexplored gut fungi in herbivores. To do so, they developed a systems-level approach that integrates transcriptomic sequencing (RNA-Seq); proteomics; phenotype;... Read more →

A team from the University of Illinois, Urbana and ExxonMobil Research and Engineering Company (EMRE) has identified regions in the United States where bioenergy crops would grow best while minimizing effects on water quantity and quality. Their paper is published in the ACS journal Environmental Science & Technology. The researchers... Read more →

Researchers at the University of Wisconsin-Madison and the Great Lakes Bioenergy Research Center (GLBRC) and colleagues have engineered a new strain of the yeast S. cerevisiae that is more resistant to the toxic effects of ionic liquids (ILs) used to generate sugars from lignocellulose. As a result, their xylose-converting strain... Read more →

A new comparative study by researchers at the Department of Energy’s BioEnergy Science Center (BESC), based at Oak Ridge National Laboratory, finds the natural abilities of unconventional bacteria could help boost the efficiency of cellulosic biofuel production. A team of researchers from five institutions analyzed the ability of six microorganisms... Read more →

Researchers with the US Department of Energy (DOE)’s Joint BioEnergy Institute (JBEI) have developed a “high-gravity” one-pot process for producing ethanol from cellulosic biomass that gives unprecedented yields while minimizing water use and waste disposal. “High gravity” means high biomass loading—the higher the biomass loading, the lower the costs for... Read more →

Chempolis Limited, a Finland-based biorefining technology corporation, has entered into partnership with India-based Avantha Group’s research wing—Avantha Centre for Industrial Research & Development (ACIRD)—on technology to produce ethanol from various agricultural residues for fuel blending. India’s agricultural sector produces large amounts of bagasse, cane trash, rice and wheat straw the... Read more →