Methane decomposition under a corona discharge to generate COx-free hydrogen

I. Aleknaviciute, T.G. Karayiannis, M.W. Collins and C. Xanthos

Energy, 2013, vol. 59, issue C, 432-439

Abstract: A non-thermal plasma reforming unit operating at atmospheric pressure has been developed for converting methane to COx-free hydrogen. Argon was used to provide additional electrons and photons for higher reaction rates. A series of experiments was performed for positive corona discharge at a fixed inter-electrode distance (15 mm) to study the effects of discharge power (range of 14–20 W) and residence time (60, 120, 180 and 240 s). A second series of experiments studied the effect of inter-electrode distance on hydrogen production, with distances of 15, 20, 25, 30 and 35 mm tested. The analysis of the results shows that both discharge power and residence time, have a positive influence on methane conversion, hydrogen selectivity and energy conversion efficiency. Longer discharge gaps favour hydrogen production. A final series of experiments on corona polarity showed that a positive discharge was preferable.

Keywords: Methane; Decomposition; Hydrogen production; COx-free; Solid carbon; Non-thermal plasma (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:59:y:2013:i:c:p:432-439

DOI: 10.1016/j.energy.2013.06.059

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