Dehydrogenative coupling of Methane under pulse corona plasma Ovr A MnO_x/γ-Al_2O_3 catalyst

摘要

Pulse corona plasma was used as an activation method for dehydrogenative coupling of methane at the normal temperature and under the normal pressure. The experimental results showed that a great enhancement in the selectivity to C_2 was achieved by the combination of pulse corona plasma with a γ-Mn_2O_3/γ-Al_2O_3 catalyst. The distribution of C_2 hydrocarbons was mainly affected by the power input and the nature of The catalyst. In addition, the gas stream direction exerted an influence upon The C_2 yield, especially at higher power input. It is inferred that the catalyst Surface provides sites for selective recombination of CH_x radicals produced By plasma.