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Hydrogenolysis of 5-carbon sugars, sugar alcohols, and methods of making propylene glycol

United States Patent

May 2, 2006
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Methods and compositions for reactions of hydrogen over a Re-containing catalyst with compositions containing a 5-carbon sugar, sugar alcohol, or lactic acid are described. It has been surprisingly discovered that reaction with hydrogen over a Re-containing multimetallic catalyst resulted in superior conversion and selectivity to desired products such as propylene glycol. A process for the synthesis of PG from lactate or lactic acid is also described.
Werpy; Todd A. (West Richland, WA), Frye, Jr.; John G. (Richland, WA), Zacher; Alan H. (Kennewick, WA), Miller; Dennis J. (Okemos, MI)
Battelle Memorial Institute (Richland, WA)
10/ 676,497
September 30, 2003
STATEMENT OF GOVERNMENT RIGHTS This invention was made with Government support under contract DE-AC0676RLO 1830 awarded by the U.S. Department of Energy. The Government has certain rights in this invention.