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Method to produce biomass-derived compounds using a co-solvent system containing gamma-valerolactone

United States Patent

9,688,845
June 27, 2017
View the Complete Patent at the US Patent & Trademark Office
A method to produce an aqueous solution of carbohydrates containing C5- and/or C6-sugar-containing oligomers and/or C5- and/or C6-sugar monomers in which biomass or a biomass-derived reactant is reacted with a solvent system having an organic solvent, and organic co-solvent, and water, in the presence of an acid. The method produces the desired product, while a substantial portion of any lignin present in the reactant appears as a precipitate in the product mixture.
Dumesic; James A. (Verona, WI), Motagamwala; Ali Hussain (Madison, WI)
Wisconsin Alumni Research Foundation (Madison, WI)
14/ 686,086
20160304704
April 14, 2015
FEDERAL FUNDING STATEMENT This invention was made with government support under DE-FC02-07ER64494 awarded by the US Department of Energy. The government has certain rights in the invention.