Green Car Congress  
Go to GCC Discussions forum About GCC Contact  RSS Subscribe Twitter headlines

« Kalmar supplying 8 electric RTGs to Turkish port | Main | DOE to award up to $35M for environmentally-prudent unconventional resource development »

Print this post

DOE seeking stakeholder input on 8 strategic biofuels pathways

4 May 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.

BETO pursues a pathway approach for advancing R&D of converting biomass into renewable fuels and products. BETO has formally initiated an effort to identify innovative pathways to hydrocarbon fuels and intermediates. A suite of pathways were identified and evaluated based on techno-economic potential, technology readiness, potential national impact, and environmental performance. The analysis heavily leveraged existing models and ongoing analysis at the National Labs and was performed using the best available information that DOE had access to at the time.

Based on this analysis, BETO selected 8 representative pathways—covering thermochemical, biochemical, and algal conversion technologies—to guide its R&D strategy in the near term.

BETO considered several criteria when choosing the representative pathways, including: near/mid/Long-term techno-economic potential, including feasibility of achieving the cost goal of $3/gallon; data availability across the full pathway; potential national impact; feedstock availability/flexibility; co-product economics; potential volumetric impact in 2030; and environmental performance.

These representative pathways are:

  • Biological Conversion of Sugars to Hydrocarbons. Biomass-derived sugars—separated from feedstocks through a series of chemical and biological processes—are further transformed, recovered, and purified to yield hydrocarbons for fuels and co-product commodities.

  • Catalytic Upgrading of Sugars to Hydrocarbons. Biomass-derived sugars—separated from feedstocks through a series of chemical and biochemical processes—are upgraded via aqueous phase reforming into hydrocarbons for fuels and co-product commodities.

  • Fast Pyrolysis and Hydroprocessing. Biomass is rapidly heated in a fluidized bed reactor to yield vapors, which are condensed into a liquid bio-oil. This bio-oil is subsequently hydroprocessed to produce hydrocarbon biofuel blendstocks.

  • Ex-situ Catalytic Pyrolysis. Biomass is rapidly heated in a fluidized bed reactor containing a catalyst to yield vapors, which are catalytically modified and condensed into a partially stabilized and deoxygenated liquid bio-oil. This stable bio-oil is subsequently upgraded to produce hydrocarbon biofuel blendstocks.

  • In-situ Catalytic Pyrolysis. Biomass is rapidly heated in a fluidized bed reactor containing a catalyst to yield a partially stabilized and deoxygenated bio-oil vapor. The vapor is condensed into a liquid bio-oil and subsequently upgraded to produce hydrocarbon biofuel blendstocks.

  • Whole Algae Hydrothermal Liquefaction. Bio-oils are separated from water via heat and pressure, so they can be catalytically hydrotreated and converted to advanced hydrocarbon fuels.

  • Algal Lipid Upgrading. Bio-oils are extracted from algal biomass via high-pressure homogenization and a hexane solvent; the algal oil can then be hydrotreated to produce advanced hydrocarbon fuels.

  • Syngas Upgrading to Hydrocarbon Fuels. Biomass feedstocks are gasified to produce a clean syngas, which is used as a feedstock for hydrocarbon biofuel production.

The purpose of the new RFI is to solicit input from industry, academia, research laboratories, government agencies, and other stakeholders on these biofuel pathways selected by BETO. BETO is also looking for input on other pathways to consider. Of specific interest is information related to technology readiness, process design, and economics, preferably from public or referenceable materials.

Responses to the RFI must be submitted electronically to PathwaysRFI@ee.doe.gov no later than 5:00pm (EDT) on 30 May 2014.

May 4, 2014 in Bio-hydrocarbons, Biomass, Fuels | Permalink | Comments (0) | TrackBack (0)

TrackBack

TrackBack URL for this entry:
http://www.typepad.com/services/trackback/6a00d8341c4fbe53ef01a73dbb4b81970d

Listed below are links to weblogs that reference DOE seeking stakeholder input on 8 strategic biofuels pathways:

Comments

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Green Car Congress © 2013 BioAge Group, LLC. All Rights Reserved. | Home | BioAge Group