Oxidation of C2-C4 alkanes on chromium oxide/alumina and on Cr2O3:: catalytic and TPD studies

被引：40

作者：

Grzybowska, B ^{[1
]}

Sloczynski, J ^{[1
]}

Grabowski, R ^{[1
]}

Keromnes, L ^{[1
]}

Wcislo, K ^{[1
]}

Bobinska, T ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Catalysis & Surface Chem, PL-30239 Krakow, Poland

来源：

APPLIED CATALYSIS A-GENERAL | 2001年 / 209卷 / 1-2期

关键词：

oxidation of C-2-C-4 alkanes; oxidative dehydrogenation of C-2-C-4 alkanes; chromium oxide catalysts;

D O I：

10.1016/S0926-860X(00)00767-5

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：

Oxidation of ethane, propane and n-butane on chromium oxide supported on alumina and on unsupported chromia yields carbon oxides as the main reaction products. The selectivity to olefins, the oxidative dehydrogenation products does not exceed about 8% at 10% conversion for propane and n-butane and 1% for the ethane reaction. Oxidative dehydrogenation is the main reaction for the isobutane reaction, the latter hydrocarbon showing, moreover, the highest overall activity. The TPD experiments show that the adsorbed alkane species desorb in the form of CO2 and H2O, only traces of olefins being observed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：279 / 289

页数：11

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