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Study suggests that decarbonizing US transport sector by converting waste CO2 to fuels would require economical air-capture of CO2

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Kreutz used two examples of CCTF systems in his analysis: biodiesel from microalgae and Sandia National Laboratory’s S2P process (an effort to utilize concentrated solar energy to convert waste CO 2 into synthetic fuels, earlier post ). natural gas, nuclear energy, renewable energy, etc.).In their CO 2 (e.g. ~90%)

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Study finds that dry-feed gasification for coal-to-liquids is more efficient, lower-emitting and cheaper than slurry-feed; CCS cost-effective for reduction of CO2

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Conventional CTL plant gasifies coal to produce a syngas which is then converted in a Fischer-Tropsch reactor to products. Even with CCS, the liquid product costs are comparable to recent crude oil prices. For a liquids-only configuration, CCS is a cheaper option when the CO 2 price exceeds $12/tonne. Click to enlarge.

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Global CO2 emissions up 3% in 2011; per capita CO2 emissions in China reach EU levels

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Global emissions of CO 2 increased by 3% last year, according to the annual report “Trends in global CO 2 emissions”, released by the EC Joint Research Centre (JRC) and the Netherlands Environmental Assessment Agency (PBL). Natural gas consumption increased globally by 2.2% Weak economic conditions, a mild winter, and energy.

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