Selective Hydrogenation of Maleic Anhydride to Tetrahydrofuran over Cu−Zn−M (M = Al, Ti, Zr) Catalysts Using Ethanol As a Solvent

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• 作者：Dongzhi Zhang ; Hengbo Yin ; Jinjuan Xue ; Chen Ge ; Tingshun Jiang ; Longbao Yu ; Yutang Shen
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2009
• 出版时间：December 16, 2009
• 年：2009
• 卷：48
• 期：24
• 页码：11220-11224
• 全文大小：231K
• 年卷期：v.48,no.24(December 16, 2009)
• ISSN：1520-5045

文摘

A series of Cu−Zn−M (M = Al, Ti, Zr) catalysts were prepared by coprecipitation method and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and N₂ adsorption. The catalytic activity of the Cu−Zn−M catalyst in maleic anhydride hydrogenation using ethanol as a solvent was studied at 220−280 °C and 1 MPa. The presence of M_xO_y in Cu−Zn−M (M = Al, Ti, Zr) catalysts favored the deep hydrogenation of maleic anhydride to tetrahydrofuran. The catalysts using TiO₂ as a support showed the highest selectivity of tetrahydrofuran. The catalytic activity of the catalysts in the hydrogenation of maleic anhydride to tetrahydrofuran followed a sequence of Cu−Zn−Ti > Cu−Zn−Zr ≈ Cu−Zn−Al.