Decomposition of methane to hydrogen using nanosecond pulsed plasma reactor with different active volumes, voltages and frequencies

Omid Khalifeh, Amin Mosallanejad, Hamed Taghvaei, Mohammad Reza Rahimpour and Alireza Shariati

Applied Energy, 2016, vol. 169, issue C, 585-596

Abstract: In this paper, the methane conversion into hydrogen is investigated experimentally in a nanosecond pulsed DBD reactor. In order to achieve pure hydrogen production with minimum power consumption, effects of some operating parameters including external electrode length, applied voltage and pulse repetition frequency have been evaluated. Results show that although higher CH4 conversion and H2 concentration can be obtained at longer electrode lengths, higher applied voltages and pulse repetition frequencies, these parameters should be optimized for efficient hydrogen production. Actually, the maximum CH4 conversion of 87.2% and maximum hydrogen percentage of 80% are obtained at the external electrode length, discharge power, voltage and frequency of 15cm, 268.92W, 12kV and 10kHz, respectively. However, the maximum efficiency of 7.23% is achieved at the external electrode length of 15cm, applied voltage of 6kV, pulse repetition frequency of 0.9kHz and discharge power of 4W. Furthermore, at this condition, due to low temperature of discharge zone very little amount of solid carbon was observed on the inner electrode surface of the reactor.

Keywords: Non-thermal plasma; Nanosecond pulsed plasma; Hydrogen production; Methane decomposition; Active volume (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (11)

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DOI: 10.1016/j.apenergy.2016.02.017

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