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New catalyst for the direct conversion of ethanol to isobutene

Green Car Congress

With increased availability and reduced cost of bio-ethanol, conversion of this particular bio-based feedstock to highly valuable fuels and chemicals has been an especially important research goal. Isobutene also reacts with alcohols such as ethanol to form ethyl tert-butyl ether (ETBE), a gasoline additive. doi: 10.1021/ja204235v.

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Team from Coskata, GM and Auburn University lays out a case for cellulosic ethanol

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The conversion of biomass to cellulosic ethanol is the most efficient and productive use of biomass to create a high-octane, environmentally friendly transportation fuel, according to a perspective paper published in the Journal of Chemical Technology & Biotechnology. Conversion pathways. Source: Datta et al. Click to enlarge.

Universal 255
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Researchers demonstrate integrated process for the production of high-octane renewable gasoline from biomass sugars

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Block flow diagram for the production of gasoline from lignocellulosic biomass by aqueous phase hydrodeoxygenation of a solution produced by the hydrolysis of biomass. The highest gasoline yield from this two-stage process was obtained from the stream produced by acid hydrolysis of maple wood with 0.5 Click to enlarge. Thus, Li et al.

Gasoline 257
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Virginia Clean Cities requests proposals from Southeastern fleets interested in converting to propane Autogas

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The Virginia Department of Mines, Minerals and Energy (DMME) and Virginia Clean Cities (VCC) at James Madison University (JMU) are requesting proposals from fleets in the southeastern US interested in converting eligible gasoline vehicles to run on propane autogas. The application deadline is Friday, 12 August 2011, at 5pm EDT.

Virginia 290
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Regalbuto: Sea change in direction of US Federal funding from cellulosic ethanol to renewable hydrocarbons

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In a paper in the journal Biofuels, Bioproducts and Biorefining , Professor John Regalbuto, Department of Chemical Engineering at the University of Illinois at Chicago, describes what he calls “ a real sea change ” in the direction of US federal funding for biomass conversion into biofuels. —Regalbuto 2011.

Renewable 186
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ZeaChem signs contract to develop advanced drop-in biofuels beyond cellulosic ethanol

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Production of bio-based jet and diesel is expected to begin in 2013 and production of bio-based gasoline, part of the C 3 product platform, will follow in 2015. The grant allows ZeaChem to use our existing integrated demonstration facility to develop advanced biofuels beyond cellulosic ethanol, including bio-based jet, diesel and gasoline.

Hydrogen 218
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New study finds GHG emissions from palm oil production significantly underestimated; palm oil biofuels could be more climate-damaging than oil sands fuels

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Business-as-usual’ projections of future conversion rates, based on historical rates over the past two decades, indicate that 6–9 Mha of peatland in insular Southeast Asia may be converted to plantations by the year 2020, unless land use planning policies or markets for products change. —Miettinen et al. Chris Malins. Miettinen, J.,

Oil-Sands 314