Abstract
This paper provides experimental parameters in the non-oxidative conversion of methane in a corona discharge to produce acetylene selectively. Conversion of 28% with 76% selectivity to acetylene was obtained using 8.2W (10,900V, 14.5MΩ), 6mm distance between electrodes, 3.6mL/min pure methane flow, and a reactor initial temperature of 297K. A considerable increase in the stability of the reaction was obtained after coating the stainless steel electrodes with gold, presumably due to a decrease in the rate of catalytic carbon formation. The energy efficiency reached 26.2kWh/kg C2H2. In addition to acetylene, hydrogen, ethane, ethylene, propane and propene were produced.
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