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Stability of Zeolite HZSM-5 in Liquid Phase Dehydration of Methanol to Dimethyl Ether

Xinde Sun,Yue Yang,Yanli He,Shukui Zhu,Zhongmin Liu

CATALYSIS LETTERS（2020）

Cited 6|Views15
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Abstract
A high performance HZSM-5 catalyst for liquid phase dehydration of methanol to dimethyl ether (DME) was developed by optimizing Si/Al ratio and hydrothermal treatment temperature. During 6788 h long term test, DME selectivity kept above 99.96% and only slight deactivation was observed primarily due to coking and decline of HZSM-5 crystallinity. Graphic Abstract
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Key words
Dimethyl ether, Liquid phase dehydration, ZSM-5, Deactivation, Dissolution
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