Effect of operating conditions on the performance of riser reactor for oxidative coupling of methane

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外文摘要：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 accel-eration zone and developed flow zone.Furthermore,at the low superficial gas velocity accompanied by a high solid circulating rate,the C2 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 C2 yield can be elevated using an appropriate feed mixture.

外文关键词：

Oxidative coupling of methaneRiserHydrodynamicsSolids holdup

作者：

Min Cai、Shuangzhu Kong、Mengxi Liu、Chunxi Lu

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作者单位：

State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing,102249,China

基金：

National Key Research and Development Program of ChinaNational Natural Science Foundation of China,China(General Program)Natural Science Foundation of Beijing,ChinaScience Foundation of China University of Petroleum,Beijing,China

项目编号：

2021YFA15013042227842822320202462022QZDX003

出版年：

2024

DOI：

10.1016/j.partic.2024.03.007

颗粒学报(英文版)

中国颗粒学会　中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD

影响因子：0.632

ISSN：1674-2001

年,卷(期)：2024.91(8)