Kinetic study on the influence of CO2 on the dehydrogenation of ethylbenzene to styrene

被引：6
|
作者：
Kano, Yusuke [1 ]
Ohshima, Masa-aki [1 ]
Kurokawa, Hideki [1 ]
Miura, Hiroshi [1 ]
机构：
[1] Saitama Univ, Grad Sch Sci & Engn, Sakura Ku, Saitama 3388570, Japan
来源：
REACTION KINETICS MECHANISMS AND CATALYSIS | 2010年 / 100卷 / 01期
关键词：
Ethylbenzene dehydrogenation; Kinetic study; Competitive adsorption; Carbon dioxide; Basic site; OXIDE-BASED CATALYST;
D O I：
10.1007/s11144-010-0166-2
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：
Dehydrogenation of ethylbenzene (EB) was examined in the presence of CO2, and the effect of CO2 on Fe2O3, Fe-Ce, Fe-K, and Fe-Ce-K oxide catalysts was evaluated. The rate equation was derived in relation to the Langmuir-Hinshelwood mechanism. The rate constant (k) and the relative adsorption coefficient (Z(CO2)) were obtained, and it was found that addition of K in the catalyst increased both k and Z(CO2). We found that CO2 had a strong affinity for the catalyst surface and that the active sites were basic.
引用
收藏
页码：79 / 83
页数：5
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