Dehydration of Methanol to Dimethyl Ether over ZSM-5 Zeolite

Methanol dehydration to dimethyl ether (DME) has been investigated over ZSM-5 zeolites and compared with that of ${\gamma}-Al_2O_3$. Although the catalytic activity was decreased with an increase in silica/alumina ratio, the DME selectivity increased. H-ZSM-5 and NaH-ZSM-5 zeolites were more active...

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Bibliographic Details
Published in:Bulletin of the Korean Chemical Society 2004, Vol.25 (2), p.185-189
Main Authors: Jiang, Shan, Hwang, Jin-Soo, Jin, Tai-Huan, Cai, Tianxi, Cho, Wonihl, Baek, Young-Soon, Park, Sang-Eon
Format: Article
Language:Korean
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Summary:Methanol dehydration to dimethyl ether (DME) has been investigated over ZSM-5 zeolites and compared with that of ${\gamma}-Al_2O_3$. Although the catalytic activity was decreased with an increase in silica/alumina ratio, the DME selectivity increased. H-ZSM-5 and NaH-ZSM-5 zeolites were more active for conversion of methanol to DME than ${\gamma}-Al_2O_3$. $Na^+$ ion-exchanged H-ZSM-5 (NaH-ZSM-5) shows higher DME selectivity than H-ZSM-5 due to the selective removal of strong acid sites.
ISSN:0253-2964
1229-5949