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In relation to this article, we declare that there is no conflict of interest.
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Received September 17, 2015
Accepted November 26, 2015
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Efficient production of propylene and gasoline from methanol in multi-regime riser

State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266555, Shandong, China 1Dagang Petrochemical Company, Petro China Corporation, Tianjin, 300280, China
mengxiaojing88@126.com
Korean Journal of Chemical Engineering, April 2016, 33(4), 1239-1246(8), 10.1007/s11814-015-0265-x
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Abstract

High gas-solid contact efficiency and low solid back-mixing are necessary to both promote methanol conversion and inhibit side reactions. Thus, a novel multi-regime reactor with dense-phase reaction section and dilutephase conveying region was designed. The reactor promoted stable reaction activity during a 300 h pilot-scale evaluation with high yields of propylene and gasoline. A process for maximum propylene and gasoline production from methanol (PGFM) characterized by moderate operating severity, application of ZSM-11 catalyst and novel reactor, and stratified reprocessing or etherification of light gasoline and C4 olefins was proposed. The PGFM process can be implemented in the existing FCC process and is considered to be more economic and flexible.

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