Dehydrogenation of ethylbenzene with CO2 over V2O5/Al2O3-ZrO2 catalyst

被引:32
|
作者
Zhang, Shujiao [1 ]
Li, Xiaohong [1 ]
Jing, Jieying [1 ]
Fan, Hongxia [1 ]
Wang, Qian [1 ]
Li, Wenying [1 ]
机构
[1] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Taiyuan 030024, Peoples R China
关键词
Ethylbenzene; Dehydrogenation; Carbon dioxide; V2O5/Al2O3-ZrO2; catalyst; CARBON-DIOXIDE; OXIDE CATALYSTS; STYRENE; ALUMINA; CONVERSION; REDUCTION; AMMOXIDATION; MECHANISM; OXIDATION; TOLUENE;
D O I
10.1016/j.catcom.2013.01.003
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
V-containing catalysts supported on Al2O3, modified with varying amounts of ZrO2, were prepared by impregnation method. Dehydrogenation of ethylbenzene with CO2 was run over these catalysts in a fixed-bed downflow stainless steel reactor. Compared with pure Al2O3 support, a small amount of ZrO2 in the support led to a significant increase in catalytic activity. Partial reduction of vanadium oxides and carbon deposition were the main reasons for the decreased catalytic activity. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:5 / 10
页数:6
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