KINETIC REGULARITIES OF METHANE DIMERIZATION REACTION

Abstract

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 C. 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. Introduction. Currently, the demand for petroleum products around the world is growing. Vinyl chloride, polyethylene, ethylene oxide, vinyl acetate, lavsan and others are in great demand. The main feedstock for all of the above substances is ethylene. Currently, ethylene is mainly thermally decomposed into gasoline. The 128  Korszerű műszerek és algoritmusa tapasztalati és elméleti tudományos kutatási  Hang 1