Effect of hydrogen combustion reaction on the dehydrogenation of ethane in a fixed-bed catalytic membrane reactor

doi:10.1016/j.cjche.2015.05.006

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (8): 1316-1325.DOI: 10.1016/j.cjche.2015.05.006

• 催化、动力学与反应工程 • 上一篇下一篇

Effect of hydrogen combustion reaction on the dehydrogenation of ethane in a fixed-bed catalytic membrane reactor

Masoud Hasany, Mohammad Malakootikhah, Vahid Rahmanian, Soheila Yaghmaei

Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

收稿日期:2014-10-15 修回日期:2015-05-03 出版日期:2015-08-28 发布日期:2015-09-26
通讯作者: Masoud Hasany

Effect of hydrogen combustion reaction on the dehydrogenation of ethane in a fixed-bed catalytic membrane reactor

Masoud Hasany, Mohammad Malakootikhah, Vahid Rahmanian, Soheila Yaghmaei

Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

Received:2014-10-15 Revised:2015-05-03 Online:2015-08-28 Published:2015-09-26
Contact: Masoud Hasany

摘要/Abstract

摘要： A two-dimensional non-isothermal mathematical model has been developed for the ethane dehydrogenation reaction in a fixed-bed catalytic membrane reactor. Since ethane dehydrogenation is an equilibrium reaction, removal of produced hydrogen by the membrane shifts the thermodynamic equilibriumto ethylene production. For further displacement of the dehydrogenation reaction, oxidative dehydrogenation method has been used. Since ethane dehydrogenation is an endothermic reaction, the energy produced by the oxidative dehydrogenation method is consumed by the dehydrogenation reaction. The results show that the oxidative dehydrogenation method generated a substantial improvement in the reactor performance in terms of high conversions and significant energy saving. It was also established that the sweep gas velocity in the shell side of the reactor is one of the most important factors in the effectiveness of the reactor.

关键词: Catalytic membrane reactor, Mathematical modeling, Ethane dehydrogenation, Hydrogen combustion

Abstract: A two-dimensional non-isothermal mathematical model has been developed for the ethane dehydrogenation reaction in a fixed-bed catalytic membrane reactor. Since ethane dehydrogenation is an equilibrium reaction, removal of produced hydrogen by the membrane shifts the thermodynamic equilibriumto ethylene production. For further displacement of the dehydrogenation reaction, oxidative dehydrogenation method has been used. Since ethane dehydrogenation is an endothermic reaction, the energy produced by the oxidative dehydrogenation method is consumed by the dehydrogenation reaction. The results show that the oxidative dehydrogenation method generated a substantial improvement in the reactor performance in terms of high conversions and significant energy saving. It was also established that the sweep gas velocity in the shell side of the reactor is one of the most important factors in the effectiveness of the reactor.

Key words: Catalytic membrane reactor, Mathematical modeling, Ethane dehydrogenation, Hydrogen combustion

Masoud Hasany, Mohammad Malakootikhah, Vahid Rahmanian, Soheila Yaghmaei. Effect of hydrogen combustion reaction on the dehydrogenation of ethane in a fixed-bed catalytic membrane reactor[J]. Chinese Journal of Chemical Engineering, 2015, 23(8): 1316-1325.

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Effect of hydrogen combustion reaction on the dehydrogenation of ethane in a fixed-bed catalytic membrane reactor

Effect of hydrogen combustion reaction on the dehydrogenation of ethane in a fixed-bed catalytic membrane reactor

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