Sorbitol hydrogenolysis to glycols by supported ruthenium catalysts

doi:10.1016/S1872-2067(14)60086-3

Abstract

Abstract:

Supported Ru catalysts were prepared by wet impregnation to evaluate the role of different oxide supports (Al₂O₃, SiO₂, TiO₂, ZrO₂) in sorbitol hydrogenolysis to glycols. X-ray diffraction, transmission electron microscopy, hydrogen chemisorption, X-ray photoelectron spectroscopy, and NH₃temperature-programmed desorption were used to characterize the catalysts, which were active in the hydrogenolysis of sorbitol. The support affected both the physicochemical properties and catalytic behavior of the supported Ru particles. The characterization results revealed that the Ru/Al₂O₃ catalyst has a high surface acidity, partially oxidized Ru species on the surface, and a higher surface Ru/Al atomic ratio, which gave it the highest selectivity and yield to glycols.

Key words: Sorbitol, Glycols, Hydrogenolysis, Ruthenium, Oxide supports

Inmaculada Murillo Leo, Manuel Lopez Granados, Jose Luis Garcia Fierro, Rafael Mariscal. Sorbitol hydrogenolysis to glycols by supported ruthenium catalysts[J]. Chinese Journal of Catalysis, 2014, 35(5): 614-621.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(14)60086-3

https://www.cjcatal.com/EN/Y2014/V35/I5/614

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