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Modification of Rh/SiO2 catalyst for the hydrogenolysis of glycerol in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
47700 46480 2010 9 PDF Available
Title
Modification of Rh/SiO2 catalyst for the hydrogenolysis of glycerol in water
Abstract

Addition of Re, Mo and W to Rh/SiO2 enhanced the catalytic activity of the glycerol hydrogenolysis using water as a solvent. The modification with Re gave the highest conversion and yield of 1,3-propanediol (1,3-PrD). The optimized Rh-ReOx/SiO2 (Re/Rh = 0.5) catalyst maintained high selectivity to propanediols and suppressed C–C bond breaking even under low H2 pressure and high reaction temperature, where Rh/SiO2 is rather active to C–C bond breaking. Characterization results indicate the formation of ReOx clusters attached to the surface of Rh metal particles. This can cause the synergy between ReOx and Rh, and the glycerol hydrogenolysis proceeds on the interface between Rh metal surface and attached ReOx species.

Keywords
Glycerol; Biomass; Hydrogenolysis; Degradation; Biomass refinery
First Page Preview
Modification of Rh/SiO2 catalyst for the hydrogenolysis of glycerol in water
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 94, Issues 3–4, 10 February 2010, Pages 318–326
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis