CATEGORY: HYDROGENATION
Ind. Eng. Chem. Res., 2012, 51 (38), pp
12205–12213, DOI: 10.1021/ie301302x
Effect of Support Acidity on Liquid-Phase
Hydrogenation of Benzene to Cyclohexene over Ru–B/ZrO2 Catalysts
Gongbing Zhou †, Jianliang Liu †, Xiaohe Tan †,
Yan Pei †, Minghua Qiao *†, Kangnian Fan †, and Baoning Zong *‡
mhqiao@fudan.edu.cn
zongbn.ripp@sinopec.com
† Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis
and Innovative Materials, Fudan University, Shanghai 200433, People’s Republic
of China
‡ The State Key Laboratory of Catalytic Materials and Reaction Engineering,
Research Institute of Petroleum Processing, Beijing 100083, People’s Republic
of China
Abstract
Reports the preparation of Ru–B/ZrO2
catalysts using monoclinic, amorphous, and tetragonal ZrO2 as
supports. These were used for liquid-phase hydrogenation of benzene to
cyclohexene. Researchers observed that both the Lewis acid sites and the
Brønsted acid sites existed on monoclinic ZrO2 (ZrO2-M).
On the other hand, there
were only Lewis acid sites on amorphous (ZrO2-A) and tetragonal ZrO2
(ZrO2-T). The amount of acid sites on ZrO2-T was the
lowest. In liquid-phase hydrogenation of benzene to cyclohexene, the Ru–B/ZrO2-T
catalyst exhibited the highest selectivity and yield of cyclohexene, with the
maximum yield of cyclohexene being 47%. These results suggest that for ZrO2-supported
Ru–B catalysts, the lower the amount of acid sites on ZrO2, the
higher the selectivity to cyclohexene.
Full Text Source (Subscription or Fee): http://pubs.acs.org/doi/abs/10.1021/ie301302x
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