Kinetic study of CO2 reforming of propane over Ru/Al2O3

被引：23
|
作者：
Sutton, D [1 ]
Moisan, JF [1 ]
Ross, JRH [1 ]
机构：
[1] Univ Limerick, Environm Res Ctr, Limerick, Ireland
来源：
CATALYSIS LETTERS | 2001年 / 75卷 / 3-4期
关键词：
carbon dioxides; propane; reforming; ruthenium catalyst;
D O I：
10.1023/A:1016719409730
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：
The rate of reaction of propane over a Ru/Al2O3 catalyst was determined as a function of the partial pressures of the reactants, C3H8 and CO2 at 600 and 650 degreesC. The order of the reaction was found to be fractional with respect to carbon dioxide, indicating its involvement in the rate-determining step of the reaction. The order of the reaction was zero in propane indicating the fast reaction of propane over the catalyst. The apparent activation energies for propane and the formation of hydrogen and carbon monoxide were investigated. Values for the formation of hydrogen and carbon monoxide indicated a decrease in the CO: H-2 ratio with an increase in temperature. Modelling of the kinetic data was inconclusive in the selection of a possible mechanism as good fits were observed for a Langmuir-Hinshelwood and a Mars-van Krevelen mechanism.
引用
收藏
页码：175 / 181
页数：7
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