Effects of small MoO3 additions on the properties of nickel catalysts for the steam reforming of hydrocarbons

被引：97

作者：

Borowiecki, T ^{[1
]}

Golebiowski, A ^{[1
]}

Stasinska, B ^{[1
]}

机构：

[1] INST FERTILIZERS, PL-24100 PULAWY, POLAND

来源：

APPLIED CATALYSIS A-GENERAL | 1997年 / 153卷 / 1-2期

关键词：

steam reforming catalysts; Mo doped Ni/Al2O3; catalyst activity; carbon deposition;

D O I：

10.1016/S0926-860X(96)00355-9

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：

Bimetallic Ni-Mo catalysts deposited on alumina show unusual properties when used in the steam reforming of hydrocarbons. An introduction of small amounts of molybdenum compounds (less than or equal to 0.1 wt.-%) considerably reduces the detrimental effect of carbon deposit formation and increases the activity of methane steam reforming. With larger amounts, one observes a decrease in the catalyst activity, although it is much smaller than the reduction of the coking rate. The properties of the Ni-Mo/Al2O3 catalysts depend on the hydrogen-steam ratio in the reaction mixture which affect the mean degree of oxidation and distribution of various molybdenum states on the surface.

引用

页码：141 / 156

页数：16

共 47 条

[1] SURFACE-STRUCTURE AND REDUCTION BEHAVIOR OF NIO-MOO3/AL2O3 CATALYSTS [J].