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Process for the conversion of and aqueous biomass hydrolyzate into fuels or chemicals by the selective removal of fermentation inhibitors

United States Patent

May 18, 2004
View the Complete Patent at the US Patent & Trademark Office
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BioRenewable Chemicals and Solvents
A process of making a fuel or chemical from a biomass hydrolyzate is provided which comprises the steps of providing a biomass hydrolyzate, adjusting the pH of the hydrolyzate, contacting a metal oxide having an affinity for guaiacyl or syringyl functional groups, or both and the hydrolyzate for a time sufficient to form an adsorption complex; removing the complex wherein a sugar fraction is provided, and converting the sugar fraction to fuels or chemicals using a microorganism.
Hames; Bonnie R. (Westminster, CO), Sluiter; Amie D. (Arvada, CO), Hayward; Tammy K. (Broomfield, CO), Nagle; Nicholas J. (Broomfield, CO)
Midwest Research Institute (Kansas City, MO)
10/ 031,216
January 11, 2002
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to Contract No. DE-AC36-99GO10337 between the United States Department of Energy and the Midwest Research Institute.