Oxidative Dehydrogenation of n-Butane: Activity and Kinetics Over VOx/Al2O3 Catalysts

被引：16

作者：

Madaan, Neetika ^{[1
]}

Haufe, Rommy ^{[2
]}

Shiju, N. Raveendran ^{[1
]}

Rothenberg, Gadi ^{[1
]}

机构：

[1] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1098 XH Amsterdam, Netherlands

[2] LANXESS Deutsch GmbH, D-51369 Leverkusen, Germany

来源：

TOPICS IN CATALYSIS | 2014年 / 57卷 / 17-20期

关键词：

Heterogeneous catalysis; Butadiene; Olefins; Factorial design; Vanadium;

D O I：

10.1007/s11244-014-0317-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The catalytic activity of a VOx/Al2O3 catalyst for the oxidative dehydrogenation of n-butane is investigated. The effects of reaction temperature, oxygen to n-butane ratio and GHSV on the catalytic performance are examined and optimized. Interestingly, this simple catalyst gives good conversion and selectivity. Butane was 22-24 %, and the selectivity to C-4 alkenes was 56 %, of which 20-22 % to 1,3-butadiene. Moreover, the catalyst is stable for at least 72 h on stream. Kinetic studies show that the activation barriers for the formation of (butene + butadiene), CO and CO2 amount to 70.2, 65 and 81.3 kJ/mol respectively.

引用

页码：1400 / 1406

页数：7

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