Aqueous-Phase Hydrogenation of Succinic Acid to γ-Butyrolactone and Tetrahydrofuran over Pd/C, Re/C, and Pd-Re/C Catalysts

被引:71
|
作者
Shao, Zhengfeng [1 ]
Li, Chuang [1 ]
Di, Xin [1 ]
Xiao, Zihui [1 ]
Liang, Changhai [1 ]
机构
[1] Dalian Univ Technol, Sch Chem Engn, Lab Adv Mat & Catalyt Engn, Dalian 116012, Peoples R China
基金
中国国家自然科学基金;
关键词
CARBON-SUPPORTED PLATINUM; RENEWABLE RESOURCES; MALEIC-ANHYDRIDE; PD-RE/AL2O3; CATALYSTS; PALLADIUM; BIOMASS; CONVERSION; 1,4-BUTANEDIOL; NANOPARTICLES; POLYMERS;
D O I
10.1021/ie5006405
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Monometallic Pd/C and Re/C and bimetallic Pd-Re/C catalysts with different Re/Pd molar ratios were prepared by incipient-wetness impregnation and characterized by temperature-programmed reduction, X-ray diffraction, CO chemisorption, and transmission electron microscopy. The results indicated that there is a strong interaction between Pd and Re species and that Pd can significantly promote the reduction of rhenium oxide. The hydrogenation of succinic acid to gamma-butyrolactone and tetrahydrofuran was investigated over the as-prepared Pd/C, Re/C, and Pd-Re/C catalysts. Pd/C showed a low conversion of succinic acid and a high selectivity to gamma-butyrolactone. Adding a small amount of Re evidently enhanced the hydrogenation activity of succinic acid and improved the yield of gamma-butyrolactone, whereas more Re increased the yield of tetrahydrofuran. The main reaction pathway for the conversion of succinic acid in aqueous solution on Pd-Re/C catalysts is proposed through hydrogenation of the intermediates, including gamma-butyrolactone, 1,4-butanediol, and tetrahydrofuran as the substrates.
引用
收藏
页码:9638 / 9645
页数:8
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