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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 25, Number 2
BKCSDE 25(2)
February 20, 2004 

Dehydration of Methanol to Dimethyl Ether over ZSM-5 Zeolite
Shan Jiang, Jin-Soo Hwang*, Taihuan Jin, Tianxi Cai, Wonihl Cho, Young soon Baek, Sang-Eon Parkd*
Dehydration, DME, Methanol, ZSM-5 zeolite
Methanol dehydration to dimethyl ether (DME) has been investigated over ZSM-5 zeolites and compared with that of γ-Al2O3. 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 γ-Al2O3. 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.
185 - 189
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