Influence of pretreatment on the catalytic performance of Ru/SBA-15 catalysts for glycerol hydrogenolysis

doi:10.1016/S1872-2067(14)60032-2

Abstract

Abstract:

Ru/SBA-15 catalysts were prepared by impregnation and were pretreated under different conditions, and were characterized by N₂ adsorption-desorption, X-ray diffraction, CO chemisorption, transmission electron microscopy, and the reaction of glycerol hydrogenolysis. The catalyst calcined in air had larger Ru particles, while the direct reduction of the catalysts with H₂ without air pre-calcination made the Ru particles dispersed well. As the H₂reduction temperature increased, the Ru dispersion decreased. The turnover frequency (TOF) of the catalysts increased as the Ru dispersion decreased, indicating that Ru/SBA-15 catalyzed glycerol hydrogenolysis is a structure sensitive reaction.

Key words: Ruthenium, Supported catalyst, Glycerol, Hydrogenolysis, Pretreatment, Structure sensitive reaction

Yuming Li, Lan Ma, Huimin Liu, Dehua He. Influence of pretreatment on the catalytic performance of Ru/SBA-15 catalysts for glycerol hydrogenolysis[J]. Chinese Journal of Catalysis, 2014, 35(5): 677-683.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(14)60032-2

https://www.cjcatal.com/EN/Y2014/V35/I5/677

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