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Super-dry reforming of methane intensifies CO2 utilization via Le Chatelier’s principle

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Science  28 Oct 2016:
Vol. 354, Issue 6311, pp. 449-452
DOI: 10.1126/science.aah7161

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Upgrading CO2 with methane

The use of carbon dioxide as a reactant could help to mitigate its impact on climate, but it is difficult to activate as an oxidant. Buelens et al. combined methane in a high-temperature “super-dry” reforming process that generates reactive carbon monoxide. Both molecules were fed into a reactor containing a nickel methane-reforming catalyst, an iron oxide solid oxygen carrier, and calcium oxide as a CO2 sorbent. The adsorbed CO2 was treated with an inert gas purge that shifted the equilibrium, releasing mainly CO. This isothermal process avoids carbon buildup and can be used with biogas methane that contains substantial levels of CO2.

Science, this issue p. 449

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