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Hydrogenolysis of 1,2‐Propanediol for the Production of Biopropanols from Glycerol
Author(s) -
Amada Yasushi,
Koso Shuichi,
Nakagawa Yoshinao,
Tomishige Keiichi
Publication year - 2010
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201000040
Subject(s) - hydrogenolysis , glycerol , propanediol , 1,3 propanediol , production (economics) , chemistry , catalysis , organic chemistry , economics , macroeconomics
Production of propanols from glycerol, which are known as biopropanols, requires catalysts for the hydrogenolysis of 1,2‐propanediol, which has been easily derived from glycerol. It is found that the Rh/SiO 2 catalysts modified with ReO x species exhibited high activity and selectivity in the hydrogenolysis of 1,2‐propanediol to propanols with low selectivity to degradation products and high stability. The optimized RhReO x /SiO 2 (Re/Rh=0.5) catalyst gave high yields of 1‐propanol (66 %) and propanols (1‐propanol +2‐propanol) (85 %) in the hydrogenolysis of 1,2‐propanediol. In addition, the catalyst was applicable to the one‐pot conversion of glycerol to propanols. The structure of Rh metal particles with attached ReO x clusters is suggested from the catalyst characterization. It is proposed that 1,2‐propanediol hydrogenolysis proceeds by the hydrogenolysis of the alkoxide species on Re with hydrogen species on the Rh metal surface.