Methane Conversion Using Dielectric Barrier Discharge: Comparison with Thermal Process and Catalyst Effects

Authors
Indarto, A.Choi, J.-W.Lee, H.Song, H.K.
Issue Date
2006-06
Citation
Journal of Natural Gas Chemistry, v.15, no.2, pp.87 - 92
Abstract
The direct conversion of methane using a dielectric barrier discharge has been experimentally studied. Experiments with different values of flow rates and discharge voltages have been performed to investigate the effects on the conversion and reaction products both qualitatively and quantitatively. Experimental results indicate that the maximum conversion of methane has been 80% at an input flow rate of 5 ml/min and a discharge voltage of 4 kV. Experimental results also show that the optimum condition has occurred at a high discharge voltage and higher input flow rate. In terms of product distribution, a higher flow rate or shorter residence time can increase the selectivity for higher hydrocarbons. No hydrocarbon product was detected using the thermal method, except hydrogen and carbon. Increasing selectivity for ethane was found when Pt and Ru catalysts presented in the plasma reaction. Hydrogenation of acetylene in the catalyst surface could have been the reason for this phenomenon as the selectivity for acetylene in the products was decreasing. ? 2006 CAS/DICP.
Keywords
Catalysis; Catalyst selectivity; Electric discharges; Heat treatment; Hydrogenation; Plasma interactions; Reaction kinetics; Reforming reactions; Dielectric barrier discharge; Methane Direct Conversion; Methane; Catalysis; Catalyst selectivity; Electric discharges; Heat treatment; Hydrogenation; Plasma interactions; Reaction kinetics; Reforming reactions; Dielectric barrier discharge; Methane Direct Conversion; Methane; catalyst; dielectric barrier discharge; methane conversion; plasma; thermal process
ISSN
1003-9953
URI
https://pubs.kist.re.kr/handle/201004/135464
DOI
10.1016/S1003-9953(06)60013-3
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KIST Article > 2006
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