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Researchers propose CO2 recycling to improve Fischer-Tropsch GTL efficiency and reduce total CO2 emissions

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Broadly, GTL processing using natural gas as feedstock entails three stages: reforming of methane to produce syngas (a mixture of H 2 and CO); conversion of the syngas using F-T synthesis to produce a broad range of hydrocarbons; and upgrading of the F-T products to naphtha, diesel, liquefied petroleum gas, etc., —Zhang et al.

CO2 262
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EPA Proposes New Regulations for Renewable Fuel Standard to Implement Requirements of EISA; GHG Reduction and Indirect Land Use Change Effects Included

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The EPA GHG lifecycle analysis combines a suite of peer-reviewed process models and peer-reviewed economic models of the domestic and international agricultural sectors to determine direct and significant indirect emissions, respectively (GREET, FASOM, FAPRI, Winrock, GTAP, CENTURY, DAYCENT, ASPEN-based models, MOVES and NEMS).

EPA 150