The methane transformation into C2 hydrocarbons was studied under plasma conditions using a new developed laboratory gliding arc (Glid-Arc) reactor operated at the frequency of 50 Hz. The methane processing was carried out in gas mixtures CH4+H2 and acetylene was found to be the main product with a small amount of ethylene. The overall methane conversion ranging from 25 to 36% was obtained and the selectivity of methane conversion to acetylene was generally high.
Two methods for decomposition of stable gaseous compounds were studied:1) by means of silent electric discharge stabilized with a dielectric barrier and 2) by gliding electrical discharge (Glid-Arc). Both the silent and the gliding discharges may be used under atmospheric pressure. The advantage of these methods is their low energy consumption and high yield of free radicals. They can be used for decomposition of stable toxical gases or liquids like chlorinated organic compounds, NOX etc. The effect of the both kinds of discharge on transformation of tetrachloromethane and of nitrous oxide was examined.
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