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Dong-Yeun Koh, Hyery Kang, Dae-Ok Kim, Juwoon Park, Minjun Cha and Prof. Huen Lee Recovery of Methane from Gas Hydrates Intercalated within Natural Sediments Using CO2 and a CO2/N2 Gas Mixture ChemSusChem 5

Article first published online: 22 JUN 2012 | DOI: 10.1002/cssc.201100644

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Fuel from rocks: Methane is successfully extracted, and CO2 is fixed in natural gas hydrate (NGH) sediments through a swapping mechanism, using either CO2 or a CO2/N2 gas mixture (see figure). Methane is recovered in yields that are nearly identical for pure methane hydrates, intercalated methane hydrates in clay, and NGH sediments, but recovery rates differ for the three samples.

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