U.S. Department of Energy - Energy Efficiency and Renewable Energy

Bioenergy Technologies Office

Department of Energy Highlights Consortium's Work to Advance Market-Ready Drop-in Transportation Biofuels

August 15, 2011

The U.S. Department of Energy (DOE) today recognized the National Advanced Biofuels Consortium's (NABC) initial selection of two "drop-in" biofuels technology pathways that will advance to the next development stage. Drop-in biofuels are fuels that can serve as direct replacements or supplements to existing gasoline, diesel and jet fuels, without any changes to existing fuel distribution networks or engines. NABC is a consortium funded by DOE with $35 million through the American Recovery and Reinvestment Act to accelerate development of advanced drop-in biofuels that can reduce our Nation's reliance on imported oil.

The first year of research by the consortium was conducted from August 2010 to July 2011. Stage I efforts focused on determining whether technical and economic barriers could be overcome to develop a pilot-ready process in three years for six biofuels technology pathways. Over the first year, the NABC performed feasibility studies to determine which of the six approaches would move on to the next stage. The second stage will further develop the selected technologies to a pilot-ready state over two years. DOE will continue to invest in research and development of other promising pathways for drop-in biofuels outside of these NABC selections.

The pathways moving into stage II under the NABC program will be funded with $26 million from DOE and will leverage an additional $12 million in cost share. The two technology pathways selected for stage II development are:

  • Fermentation of Lignocellulosic Sugars (FLS), led by Amyris. The FLS technology focuses on converting biomass into sugars that can be biologically and chemically converted into a renewable diesel fuel. This renewable diesel is certified by the U.S. Environmental Protection Agency to be blended up to 35% with conventional diesel.
  • Catalysis of Lignocellulosic Sugars (CLS), led by Virent. The CLS technology focuses on converting biomass into sugars that can be chemically and catalytically converted into an array of gasoline and diesel fuel components. Preliminary tests of these fuel components look encouraging for their use as drop-in fuels for both gasoline and diesel.

The NABC has also identified two additional technology pathways that have demonstrated considerable promise for achieving drop-in biofuels but were missing key data to fully complete the feasibility study. These two technology pathways, Catalytic Fast Pyrolysis and Hydrothermal Liquefaction, will be given three months to generate the missing data at which point the NABC will then determine whether they are ready to proceed into stage II.

The NABC, co-led by the National Renewable Energy Laboratory and the Pacific Northwest National Laboratory, consists of 17 partners representing leading expertise and resources in advanced biofuels development across the national laboratories, academia, and industry.

DOE's Office of Energy Efficiency and Renewable Energy invests in clean energy technologies that strengthen the economy, protect the environment, and reduce America's dependence on foreign oil. Learn more about DOE's support of research and development of biofuels, bioenergy, and bioproducts.