Mixed MVSb oxides as oxidehydrogenation catalysts

被引：14

作者：

Mamedov, EA ^{[1
]}

Talyshinskii, RM ^{[1
]}

Rizayev, RG ^{[1
]}

Fierro, JLG ^{[1
]}

Corberan, VC ^{[1
]}

机构：

[1] CSIC,INST CATALISIS & PETROLEOQUIM,MADRID 28049,SPAIN

来源：

CATALYSIS TODAY | 1996年 / 32卷 / 1-4期

关键词：

MVSb oxides; oxidehydrogenation catalysts;

D O I：

10.1016/S0920-5861(96)00086-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Mixed MVSb (M = Ni, Co, Bi, Sn) oxides supported by alumina were characterized and evaluated for oxidative dehydrogenations of light paraffins, ethylbenzene and ethanol. The most selective NiVSb catalyst was the most easily reduced that was interpreted on the assumption of reaction redox mechanism. The results of kinetic measurements revealed the concentration of gas-phase oxygen to be a key parameter affecting the dehydrogenation selectivity. To maintain it an optimum along the catalyst bed, a distributed oxygen feed was used.

引用

页码：177 / 183

页数：7

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