A study of the homogeneous oxidation of low-concentration methane-containing gases at high temperatures

Experimental Research on the Thermal Oxidation of Ventilation Air Methane in a Thermal Reverse Flow Reactor

“…Extensive research has shown that the selectivity of methane oxidation to CO reaches 70–90%, passing through a maximum with increasing temperature, while the degree of methane conversion depends on the reactor packing and diameter. 23 Pawlaczyk and Gosiewski 24 studied the kinetics of dilute methane thermal combustion in monolith materials and put forward a method for calculating the reaction rate combining low-temperature kinetic parameters and high-temperature kinetic parameters for further simulation studies. In addition, Pawlaczyk and Gosiewski 25 concluded that the combustion mechanism in monolith layers includes a combination of heterogeneous surface combustion and homogeneous combustion in the gas phase through experimental research, and the contributions of the two mechanisms depend on the temperature.…”

“…Slepterev et al carried out experiments on the homogeneous deep oxidation reaction mechanism of lean methane mixtures in fixed beds of ceramic spheres, considered that the methane oxidation occurs via a consecutive scheme of CO formation, found that CO oxidation is visibly inhibited by methane, and presented recommended kinetic equations and parameters. Extensive research has shown that the selectivity of methane oxidation to CO reaches 70–90%, passing through a maximum with increasing temperature, while the degree of methane conversion depends on the reactor packing and diameter . Pawlaczyk and Gosiewski studied the kinetics of dilute methane thermal combustion in monolith materials and put forward a method for calculating the reaction rate combining low-temperature kinetic parameters and high-temperature kinetic parameters for further simulation studies.…”