Theoretical analysis ofa multi-stage membrane reactor for oxidative coupling of methane

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Author list: Tiraset S., Wiyaratn W., Assabumrungrat S., Arpornwichanop A.

Publication year: 2012

Volume number: 31

Start page: 445

End page: 449

Number of pages: 5

ISSN: 1570-7946

eISSN: 1570-7946

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84864526500&doi=10.1016%2fB978-0-444-59507-2.50081-0&partnerID=40&md5=071a6ae63a5d6b28178d27febe4fc071

Languages: English-Great Britain (EN-GB)

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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 2H 4 selectivity and C 2H 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. ฉ 2012 Elsevier B.V.

Keywords

Feed distribution, Multi-stage reactor, Performance Analysis