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2006•Journal of Molecular Catalysis(China)Requires access

Effects of Supports on HDS Activity of Au-Pd Catalyst

Cai Jiang-xing

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Abstract

The gold catalyst can be used in the thiophene hydrodesulfurization reaction. The effects of Al_2O_3,TiO_2-Al_2 O_ 3 etc supports on HDS activity of Au-Pd catalysts were studied, and also characterized with XRD, TPD, BET, and TPR. The results indicate that Au-Pd/TiO_ 2 -Al_ 2 O_ 3 catalyst has better hydrodesulfurization activity and stability than those of Au-Pd/Al_ 2 O_ 3 catalyst. Compare with Au-Pd/Al_ 2 O_ 3 catalyst, Au-Pd/TiO_ 2 -Al_ 2 O_ 3 catalyst has higher acid site density and acid strength, active surface area and absorbing amount of H _ 2 and CO.

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What this paper is about

The gold catalyst can be used in the thiophene hydrodesulfurization reaction. The effects of Al_2O_3,TiO_2-Al_2 O_ 3 etc supports on HDS activity of Au-Pd catalysts were studied, and also characterized with XRD, TPD, BET, and TPR. The results indicate that Au-Pd/TiO_ 2 -Al_ 2 O_ 3 catalyst has better hydrodesulfurization activity and stability than those of Au-Pd/Al_ 2 O_ 3 catalyst. Compare with Au-Pd/Al_ 2 O_ 3 catalyst, Au-Pd/TiO_ 2 -Al_ 2 O_ 3 catalyst has higher acid site density and acid strength, active surface area and absorbing amount of H _ 2 and CO.

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Available abstract

The gold catalyst can be used in the thiophene hydrodesulfurization reaction. The effects of Al_2O_3,TiO_2-Al_2 O_ 3 etc supports on HDS activity of Au-Pd catalysts were studied, and also characterized with XRD, TPD, BET, and TPR. The results indicate that Au-Pd/TiO_ 2 -Al_ 2 O_ 3 catalyst has better hydrodesulfurization activity and stability than those of Au-Pd/Al_ 2 O_ 3 catalyst. Compare with Au-Pd/Al_ 2 O_ 3 catalyst, Au-Pd/TiO_ 2 -Al_ 2 O_ 3 catalyst has higher acid site density and acid strength, active surface area and absorbing amount of H _ 2 and CO.

Key concepts: Hydrodesulfurization, Catalysis, Chemistry, Thiophene, Inorganic chemistry, Catalyst support, Nuclear chemistry, Heterogeneous catalysis

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