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Journal of Nanomaterials
Volume 2015 (2015), Article ID 670896, 8 pages
http://dx.doi.org/10.1155/2015/670896
Research Article

Partial Hydrogenation of Benzene to Cyclohexene over Ru-Zn/MCM-41

Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering & Technology, Hebei University of Technology, Tianjin 300130, China

Received 28 December 2014; Accepted 6 February 2015

Academic Editor: Yongchun Hong

Copyright © 2015 Tongtong Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Ru-Zn/MCM-41 catalysts for the partial hydrogenation of benzene with differing Zn contents were prepared by the incipient-wetness impregnation method. The evaluation results indicate that Zn simultaneously depresses the catalysts activity and cyclohexene selectivity. This can be attributed to the change in the amount of the different hydrogenation sites affected by Zn. The weak hydrogenation sites can promote benzene conversion, and the strong hydrogenation sites, a novel kind of hydrogenation site found on the surface of the catalysts under the influence of Zn, are beneficial for cyclohexene hydrogenation.