Binary and ternary transition-metal phosphides as HDN catalysts

被引：222

作者：

Stinner, C ^{[1
]}

Prins, R ^{[1
]}

Weber, T ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Tech Chem Lab, ETH, CH-8092 Zurich, Switzerland

来源：

JOURNAL OF CATALYSIS | 2001年 / 202卷 / 01期

关键词：

transition-metal phosphides; preparation; hydrodenitrogenation; o-propylaniline; comparison; hydrogen disulfide;

D O I：

10.1006/jcat.2001.3283

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Transition-metal phosphides (Co2P, Ni2P, MoP, WP, CoMoP, NiMOP) were prepared by reducing metal oxide/phosphate precursors in a flow of H-2. The solids obtained were tested in the hydrodenitrogenation of o-propylaniline at 643 K and 3 MPa. All the catalysts were active, with product selectivities resembling those of sulfidic catalysts. The influence of H2S on the activity and selectivities was tested and is discussed with regard to a possible surface modification. Based on the surface area of each catalyst, we estimated the relative intrinsic activities of the different phosphides. According to this estimation, MOP was intrinsically the most active catalyst. (C) 2001 Academic Press.

引用

页码：187 / 194

页数：8

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