Abstract
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 language | English |
|---|---|
| Pages (from-to) | 1954-1958 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Plasma Science |
| Volume | 43 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2015 |
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Cite this
Hoeben, W. F. L. M., Heesch, van, E. J. M., Beckers, F. J. C. M., Boekhoven, W., & Pemen, A. J. M. (2015). Plasma-driven water assisted CO2 methanation. IEEE Transactions on Plasma Science, 43(6), 1954-1958. https://doi.org/10.1109/TPS.2015.2429316