Kinetics of the Oxidative Dehydrogenation of Propane over a VMgO Catalyst

被引：1

作者：

LLateEABlekkanDepartment of Chemical Engineering Norwegian University of Science and Technology NTNU N Trondheim NorwayManuscript received June ^{[7491
,
,2002
]}

revised July ^{[2
,2002
]}

机构：

来源：

Journal of Natural Gas Chemistry | 2002年 / Z1期

关键词：

propane; oxidative dehydrogenation; VMgO; kinetics;

D O I：

暂无

中图分类号：

O643.3 [催化];

学科分类号：

081705 ;

摘要：

<正>The reaction kinetics of the oxidative dehydrogenation of propane was studied at 475-550℃ over a VMgO catalyst. Vanadium-magnesium-oxides are among the most selective and active catalysts for the dehydrogenation of propane to propylene. Selectivity to propylene up to about 60% was obtained at 10% conversion, but the selectivity decreased with increasing conversion. No oxygenates were detected, the only by-products were CO and CO2. The reaction rate of propane was found to be first order in propane and close to zero order in oxygen, which is in agreement with a Mars van Krevelen mechanism with the activation of the hydrocarbon as the rate determining step. The activation energy of the conversion of propane was found to be 122±6 kJ/mol.

引用

页码：33 / 42

页数：10

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