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Effect of hydrazine hydrate on the Ru–Zn/SiO2 catalysts performance for partial hydrogenation of benzene

Paper ID Volume ID Publish Year Pages File Format Full-Text
51827 46855 2009 5 PDF Available
Title
Effect of hydrazine hydrate on the Ru–Zn/SiO2 catalysts performance for partial hydrogenation of benzene
Abstract

Ru–Zn/SiO2 catalysts were prepared in a water-in-oil microemulsion for partial hydrogenation of benzene. Hydrazine hydrate was added during the preparation to obtain Ru particles with controllable size. The results indicated that, the addition of hydrazine hydrate led to Ru particles with larger size, and the amount of hydrazine hydrate did not show obvious influence on the size of Ru particles. However, the catalytic activity changed significantly with addition of hydrazine hydrate, even if the Ru particle size, obtained by Scherrer equation, remained constant. This is attributed to the formation of a highly dispersed Ru species and crystalline Ru simultaneously. The former favored benzene conversion, and the latter was beneficial for increasing cyclohexene selectivity by contrast.

Keywords
Cyclohexene; Benzene; Partial hydrogenation; Hydrazine hydrate; Highly dispersed Ru species
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Effect of hydrazine hydrate on the Ru–Zn/SiO2 catalysts performance for partial hydrogenation of benzene
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 1, 10 October 2009, Pages 29–33
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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