Recognition of Oxidative Coupling of Methane Reactor Performance Patterns

Abstract

A pseudo‐homogeneous model, considering the axial and radial heat and mass transfer characteristics of an oxidative coupling of methane (OCM) packed‐bed catalytic reactor, was utilized to represent its thermal reaction performance in a wide range of variation of the operating conditions investigated in this research. This is another step towards distinguishing the direct contribution of the catalytic reactions and indirect contribution of the reactor's structural characteristics on the overall OCM reactor performance, as well as towards developing a thoroughly representative reaction scheme and a well‐estimated set of kinetic parameters. The results of an extensive experimentation were also utilized to support this model‐based analysis.

Riser Reactor with a Multistage Oxygen Feeding Strategy for the Oxidative Coupling of Methane

“…Moreover, based on many kinetics published, the reaction order in oxygen for the formation of C 2 is lower than the reaction order in oxygen for the combustion reactions. − As a result, the C 2 selectivity decreases when the oxygen concentration increases. Therefore, the multistage oxygen feeding, distributing the oxygen feed along the reactor, is proposed to enhance C 2 selectivity, which locally reduces the oxygen concentration. ,− A dual-bed packed bed reactor consisting of two catalyst beds in series was constructed to achieve the multistage oxygen feeding, , and the C 2 yield of 21% increased by 5% compared with that in a single-bed packed bed.…”