Journal
CHEMSUSCHEM
Volume 5, Issue 10, Pages 1991-1999Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201200121
Keywords
alcohols; biomass; hydrogenolysis; iridium; rhenium
Funding
- JSPS KAKENHI [23760737]
- Cabinet Office, Government of Japan
- New Energy and Industrial Technology Development Organization (NEDO) of Japan
- Grants-in-Aid for Scientific Research [12J05187, 23760737] Funding Source: KAKEN
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The hydrogenolysis of erythritol using an IrReOx/SiO2 catalyst was performed for the production of butanediols, which are widely used as a raw material of polymers. The activity and selectivity to butanediols on IrReOx/SiO2 was much higher than that on conventional hydrogenolysis catalysts. The maximum selectivity to 1,4- and 1,3-butanediols reached 33 and 12?% at 74?% conversion, respectively. The erythritol conversion and selectivity to butanediols was almost maintained during four repeating tests if small amounts of acid were added to the reaction and the catalyst was calcined again. The reaction kinetics, reactivity trends, and characterization results indicate a direct hydrogenolysis mechanism in which the hydride species on the Ir metal surface attacks the alkoxide species on the 3D ReOx clusters. Based on the production of erythritol by the fermentation of glucose and glycerol, erythritol hydrogenolysis may be a promising pathway for the production of biobutanediols.
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