Selective Hydrogenation of Maleic Anhydride to Succinic Anhydride Over Nickel-palladium Catalysts

被引:3
作者
Tian, W. -P. [1 ]
Guo, S. -F. [1 ]
Shi, L. [1 ]
机构
[1] E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China
关键词
Hydrogenation; maleic anhydride; Ni-Pd; normal pressure; succinic anhydride; VAPOR-PHASE HYDROGENATION;
D O I
10.1080/10916466.2011.628957
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Hydrogenation of maleic anhydride (MA) to succinic anhydride (SA) over Ni-Pd bimetallic catalysts prepared by impregnation method has been studied at different Pd contents, pressures and temperatures. Catalytic activity was greatly influenced by the Pd content, pressure and temperature. Use of 5wt%Ni-0.02wt%Pd/clay catalyst, the 100% conversion for MA and 100% selectivity for SA were obtained for MA hydrogenation at normal pressure. The catalysts were characterized by an array of techniques, including X-ray diffraction (XRD) and H-2 temperature-programmed reduction (TPR). XRD and TPR studies showed that nickel was present as Ni2+ species on the support, and that there was no elemental nickel (Ni-0) and Ni2O3 in the unreduced samples. XRD and TPR also showed that Pd was as amorphous existence on the catalysts.
引用
收藏
页码:1784 / 1790
页数:7
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