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Biomass-to-Liquids (BTL)

[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.]

New UK Energy & Fuels 2050 transportation roadmap highlights important role of drop-in fuels and power-to-gas

March 23, 2015

Professor Neville Jackson, Ricardo’s chief technology and innovation officer, presented the results of a research project carried out by the Automotive Council UK to establish a long-term (to 2050) transition from current gasoline and diesel fuels to a majority renewable energy portfolio. Inputs to the new Energy & Fuels Roadmap included recent UK & EU studies on automotive technologies, as well as roadmaps for passenger cars, commercial vehicles and internal combustion engines previously published by the Automotive Cuncil.

The research, presented at last week’s Open Forum organized by the Society of Motor Manufacturers and Traders (SMMT) in London, aimed to create a high level consensus view for the future of transport energy in the UK. Chaired by Professor Jackson of Ricardo, the research team that produced the report was made up of representatives drawn from a wide range of industry stakeholder organizations including BP, Shell, Jaguar LandRover, Caterpillar, the Energy Technologies Institute, the Low Carbon Vehicle Partnership, E4tech, Element Energy and Associated British Foods.

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Southwest Airlines signs purchase agreement with Red Rock Biofuels for renewable jet fuel from forest residues; ~3M gallons per year

September 24, 2014

Southwest Airlines has signed an agreement with Red Rock Biofuels LLC (RRB) to purchase low carbon renewable jet fuel, made using forest residues that will help reduce the risk of destructive wildfires in the Western United States. The airline’s agreement with RRB covers the purchase of approximately three million gallons per year. The blended product will be used at Southwest’s Bay Area operations with first delivery expected in 2016.

RRB’s first plant will convert approximately 140,000 dry tons of woody biomass feedstock into at least 12 million gallons per year of renewable jet, diesel, and naphtha fuels. The company recently received a $70-million grant under phase 2 of the US Defense Production Act Title III Advanced Drop-in Biofuels project for construction of the facility, which will also produce mil-spec fuels. (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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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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