Gas-phase hydrogenation of maleic anhydride to butyric acid over Cu/TiO₂/γ-Al₂O₃ catalyst promoted by Pd

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• 作者：Lu ; Weijing ; Lu ; Guanzhong ; Guo ; Yun ; Guo ; Yanglong ; Wang ; Yunsong
• 关键词：Supported Cu&ndash ; Pd catalyst ; Selective hydrogenation ; Maleic anhydride ; Butyric acid ; Promoter of Pd
• 刊名：Catalysis Communications
• 出版年：2003
• 期刊代码：12_15667367
• 类别：ce
• 出版时间：April, 2003
• 卷：4
• 期：4
• 页码：177-181
• 文件大小：257 K

摘要

The promoter effect of palladium on the Cu/TiO₂/γ-Al₂O₃ catalyst was investigated for the gas-phase selective hydrogenation of maleic anhydride to butyric acid at atmospheric pressure. The results show that Pd is added rarely into the Cu/TiO₂/γ-Al₂O₃ catalyst for the hydrogenation of maleic anhydride, the higher selectivity to butyric acid can be obtained. In the absence of Pd (or Cu) in the Cu–Pd/TiO₂/γ-Al₂O₃ catalyst, the selectivity to butyric acid (BA) is nearly zero. Using the Cu–Pd/TiO₂/γ-Al₂O₃ (Pd/Cu=3/100 (atom)) catalyst, 56.2%selectivity to BA and 100%conversion of maleic anhydride were obtained at 280 °C.