KINETIC REGULARITIES OF METHANE DIMERIZATION REACTION

The article studies the factors affecting the rate of methane dimethylation reaction with catalytic oxidation, the kinetic laws of the reaction in a flow differential quartz reactor (P = 0.1 MPa, Vcat = 0.5 ml ÷ 2 ml, CH4 : O2 = 2 ÷ 4, contact time 0.1-0.09 sec) in the temperature range 750-850 0C. Based on the study of such factors as the effect of temperature on methane conversion and product selectivity, the effect of oxygen and hydrogen additives on methane conversion and product selectivity, the effect of temperature on ethane selectivity, CH4:O2=3:1 on acetylene selectivity for various concentrations of methane in the mixture, a mechanism for the formation of ethane, ethylene, acetylene, and carbon dioxide reactions was proposed and a kinetic model was created.

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