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Influence of Au promoter on hydrodesulfurization activity of thiophene over sulfided Au–Ni/SiO2 bimetallic catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
51329 46839 2009 4 PDF Available
Title
Influence of Au promoter on hydrodesulfurization activity of thiophene over sulfided Au–Ni/SiO2 bimetallic catalysts
Abstract

Au–Ni/SiO2 bimetallic catalysts with high performance on hydrodesulfurization (HDS) were prepared through consecutive impregnation route. The activities of the catalysts with different metal loading were estimated by thiophene HDS. The activity is affected by nickel and gold loadings as well as the catalyst pretreatment. It is found the presence of Au can partly inhibit the formation of nickel sulfide phase and significantly increase the HDS activity of Ni/SiO2 catalyst. The sulfided catalysts show higher activity than reduced or oxidized catalysts. Synergetic effect between gold and nickel species is preferable for high activity with low metal loadings.

Keywords
Gold; Nickel; Silica; Bimetallic catalyst; Thiophene; Hydrodesulfurization
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Influence of Au promoter on hydrodesulfurization activity of thiophene over sulfided Au–Ni/SiO2 bimetallic catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 8, 30 March 2009, Pages 1174–1177
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
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