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Method to convert biomass to 5-(hydroxymethyl)-furfural (HMF) and furfural using lactones, furans, and pyrans as solvents

United States Patent

July 8, 2014
View the Complete Patent at the US Patent & Trademark Office
Described is a process to produce hydroxymethyl furfural (HMF) from biomass-derived sugars. The process includes the steps of reacting a C5 and/or C6 sugar-containing reactant derived from biomass in a monophasic or biphasic reaction solution comprising water and a co-solvent. The co-solvent can be beta-, gamma-, and/or delta-lactones derived from biomass, tetrahydrofuran (THF) derived from biomass, and/or methyltetrahydrofuran (MTHF) derived from biomass. The reaction takes place in the presence of an acid catalyst and a dehydration catalyst for a time and under conditions such that at least a portion of glucose or fructose present in the reactant is converted to HMF.
Dumesic; James A. (Verona, WI), Ribeiro Gallo; Jean Marcel (Madison, WI), Alonso; David (Madison, WI)
Wisconsin Alumni Research Foundation (Madison, WI)
13/ 649,891
October 11, 2012
FEDERAL FUNDING STATEMENT This invention was made with government support under W911NF-09-2-0010 awarded by the ARMY/ARO and DE-FG02-84ER13183 awarded by the US Department of Energy. The government has certain rights in the invention.