Non-Catalytic synthesis of hydrocarbons from CO2 with CH4 by activation in microwave plasma promoted by char particles

Abstract

In this study, the MW plasma was applied to a non-catalytic reaction between CO₂ and CH₄ at atmospheric pressure. When CO₂ and CH₄ were fed to MW plasma of argon in a quartz glass tubular reactor with a packed bed of char made of wood, yields of ethylene, acetylene and other hydrocarbon products were recognized. The effect of different powers, ratio of methane to carbon dioxide was examined on the conversion and the yields and selectivity of those hydrocarbons. The results show that increasing the power promotes the reaction and increases the yield of hydrocarbons. Increasing the ratio of methane feed gas helps hydrocarbon yield, while reducing the ratio of methane increases the conversion rate of raw gas.