Kinetic Modeling of Plasma Methane Conversion Using Gliding Arc

摘要

Plasma methane (CH_4) conversion in gliding arc discharge was examined. The result data of experiments regarding the performance of gliding arc discharge were presented in this paper. A simulation which is consisted some chemical kinetic mechanisms has been provided to analyze and describe the plasma process. The effect of total gas flow rate and input frequency refers to power consumption have been studied to evaluate the performance of gliding arc plasma system and the reaction mechanism of decomposition. Experiment results indicated that the maximum conversion of CH_4 reached 50% at the total gas flow rate of 1 L/min. The plasma reaction was occurred at the atmospheric pressure and the main products were C (solid), hydrogen, and acetylene (C_2H_2). The plasma reaction of methane conversion was exothermic reaction which increased the product stream temperature around 30-50℃.