Abstract
Oxidative coupling of methane (OCM) is a promising route for the production of ethylene by fully utilizing the abundance of methane feedstock. In this study, a multistage dense tubular membrane reactor is investigated to improve the performance of OCM. Mathematical model of the membrane reactor based on conservative equations and detailed OCM kinetic model is employed to analyze the effect of key operating parameters such as temperature and methane to oxygen feed ratio, on the efficiency of the OCM process in terms of CH 4 conversion, C 2 H 4 selectivity and C 2 H 4 yield. Adjustment of feed distributions at each membrane stage is also studied. The result shows that the multi-stage membrane reactor shows a better performance than the single-stage one. Moreover, a suitable feeding policy can improve the OCM performance.
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