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Coupling reaction between methanol dehydrogenation and maleic anhydride hydrogenation over zeolite‐supported copper catalysts
Author(s) -
Gao Dezhi,
Yin Hengbo,
Feng Yonghai,
Wang Aili
Publication year - 2015
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.22185
Subject(s) - dehydrogenation , catalysis , maleic anhydride , methanol , dimethyl ether , chemistry , copper , methyl formate , inorganic chemistry , zeolite , organic chemistry , copolymer , polymer
MCM‐41, Y, ZSM‐5, and β zeolite‐supported copper catalysts prepared by the incipient wetness impregnation method were used for the coupling reaction between methanol dehydrogenation and maleic anhydride hydrogenation in a fixed bed reactor. The Cu/MCM‐41 catalyst with low acidity favoured methanol dehydrogenation to methyl formate and maleic anhydride hydrogenation to γ‐butyrolactone, while Cu/Y, Cu/ZSM‐5, and Cu/β catalysts with high acidities favoured methanol dehydration to dimethyl ether and the formation of dimethyl succinate. When the coupling reaction over the Cu/MCM‐41 catalyst was carried out at 240–300 °C, the selectivities of methyl formate and γ‐butyrolactone reached 88 % and 72 %, respectively. The coupling reaction over the Cu/MCM‐41 catalyst had good compensation for hydrogen and reaction heat.