Plasma-driven water assisted CO2 methanation

W.F.L.M. Hoeben, E.J.M. Heesch, van, F.J.C.M. Beckers, W. Boekhoven, A.J.M. Pemen

Research output: Contribution to journalArticleAcademicpeer-review

13 Citations (Scopus)
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By the application of pulsed corona discharges in a carbon dioxide atmosphere over a water film, the formation of methane has been observed under mild reaction conditions, without the application of a dedicated catalyst. Methane is proposed to result from hydrogenation of carbon monoxide and possibly also carbon dioxide at the NiCr alloy high-voltage electrodes, the precursors being formed by plasma-induced decomposition of carbon dioxide and water. Applying energy densities up to 46 kJ/L has yielded methane levels of approximately 440 ppm at a production efficiency of 398 pmol/J. The observed plasma chemistry occurs at ambient pressure, while gas phase heat is cooled away by the water film, the latter being thermally nearly unaffected.
Original languageEnglish
Pages (from-to)1954-1958
Number of pages5
JournalIEEE Transactions on Plasma Science
Issue number6
Publication statusPublished - 2015


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