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Processes and systems for the production of propylene glycol from glycerol

United States Patent

January 20, 2015
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
Processes and systems for converting glycerol to propylene glycol are disclosed. The glycerol feed is diluted with propylene glycol as the primary solvent, rather than water which is typically used. The diluted glycerol feed is sent to a reactor where the glycerol is converted to propylene glycol (as well as other byproducts) in the presence of a catalyst. The propylene glycol-containing product from the reactor is recycled as a solvent for the glycerol feed.
Frye; John G. (Richland, WA), Oberg; Aaron A. (Richland, WA), Zacher; Alan H. (Richland, WA)
Battelle Memorial Institute (Richland, WA)
12/ 711,053
February 23, 2010
ACKNOWLEDGMENT OF GOVERNMENT SUPPORT This invention was made with Government support under Contract DE-AC06-76RLO1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.