Effect of operating conditions on the performance of riser reactor for oxidative coupling of methane Author links open overlay panel  

作　　者：Min Cai Shuangzhu Kong Mengxi Liu Chunxi Lu 

机构地区：[1]State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing,102249,China

出　　处：《Particuology》2024年第8期235-248,共14页颗粒学报（英文版）

基　　金：support from the National Key Research and Development Program of China,China(grant No.2021YFA1501304);the National Natural Science Foundation of China,China(General Program)(grant No.22278428);Natural Science Foundation of Beijing,China(grant No.2232020);Science Foundation of China University of Petroleum,Beijing,China(grant No.2462022QZDX003).

摘　　要：Oxidative coupling of methane(OCM)is characterized by high temperature and strong heat released.A riser reactor is designed for the OCM process to improve gas-solid contacting and heat transfer.This work illustrates the effect of hydrodynamic conditions and feed gas composition on the performance of an OCM riser reactor.The findings suggest that oxidative reactions predominantly occur within the acceleration zone and developed flow zone.Furthermore,at the low superficial gas velocity accompanied by a high solid circulating rate,the C_(2)yield initially increases in the acceleration zone,followed by a decrease in the developed flow zone and deceleration zone.The optimal operating conditions are a specific region corresponding to the solids holdup ranges from 0.015 to 0.02.Moreover,the C_(2)yield can be elevated using an appropriate feed mixture.

关 键 词：Oxidative coupling of methane RISER HYDRODYNAMICS Solids holdup 

分 类 号：TQ221.11[化学工程—有机化工]