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Researchers successfully engineer E. coli to produce renewable propane; proof-of-concept

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Researchers from the University of Turku in Finland, Imperial College London and University College London have devised a synthetic metabolic pathway for producing renewable propane from engineered E. coli bacteria. an aldehyde-deformylating oxygenase (ADO) to form the final product, propane. Kalim Akhtar & Patrik R.

Renewable 236
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U Wisc. scientists develop new method to convert lignin to simple chemicals under mild conditions

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Researchers at the University of Wisconsin have disclosed a new method to convert lignin, an important component of biomass waste, into simple chemicals. Lignin is the only large volume renewable feedstock that contains aromatics. We need to find an economical way to convert lignin to value-added materials.

Convert 218
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DOE to Award Honeywells UOP $25M for Pyrolysis Oil to Renewable Fuels Demo Unit

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Converting biomass to renewable fuels via a pyrolysis pathway. The US Department of Energy has selected UOP, a Honeywell company, for negotiation of a $25 million award to build a demonstration unit in Hawaii to convert cellulosic biomass into renewable hydrocarbon transportation fuels. Source: UOP. Click to enlarge.

Oil 210
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Delivery of renewable isooctane to Audi tips interesting potential non-biomass pathway for biogasoline; “e-benzin” as solar fuel

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Last week, Audi and its partner Global Bioenergies announced that the first batch of renewable isooctane—which Audi calls “e-benzin”—using Global Bioenergies’ fermentative isobutene pathway (sugar→isobutene→isooctane) had been produced and presented to Audi by Global Bioenergies. Earlier post.). Earlier post.).

Audi 150
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Progress toward commercializing the GTI IH2 thermochemical process for drop-in hydrocarbon fuels

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IH 2 is a new thermochemical process that employs a catalyzed fluidized bed hydropyrolysis step followed by an integrated hydroconversion step to directly convert biomass into high-quality, fungible hydrocarbon fuels. Based on assessments by the US Department of Energy’s National Renewable Energy Laboratory in Golden, Colo.,

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Engine testing shows environmental and performance benefits of hydrotreated vegetable oil as renewable diesel fuel

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These intermediates are then converted into alkanes by three different pathways: decarboxylation, decarbonylation (both removing a carbon atom from the initial intermediate), and hydrodeoxygenation (with no carbon removal) at the temperatures above 300–360 °C and pressure of at least 3 MPa. Source: Kim et al. Click to enlarge.

Diesel 246
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Solazyme and Amyris receive Presidential Green Chemistry Challenge awards

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The US Environmental Protection Agency (EPA) has announced the 5 winners of the 2014 Presidential Green Chemistry Challenge Awards, including biotechnology companies Amyris and Solazyme, Inc. Amyris received the Small Business award for its renewable hydrocarbon farnesane for use as diesel and jet fuel. Professor Shannon S.

Green 290