Biomass pre-treatment for co-production of high-concentration C5- and C6-carbohydrates and their derivatives

Dumesic, James A.; Martin Alonso, David; Luterbacher, Jeremy Scott

Biomass pre-treatment for co-production of high-concentration C5- and C6-carbohydrates and their derivatives

Patent · 07 June 2016

OSTI ID:1256009

Dumesic, James A.; Martin Alonso, David; Luterbacher, Jeremy Scott

Described is a method of processing biomass to separate it into a liquid fraction enriched in solubilized C5-sugar-containing oligomers and C-5 sugar monomers and a solid fraction enriched in substantially insoluble cellulose and C6-sugar-containing oligomers. The method includes the steps of reacting biomass with a solvent system comprising water, at least one lactone, or at least one furan, or at least one cyclic ether, and at least one acid, for a time and at a temperature to yield the liquid and solid fractions. The liquid and solid fractions may then be separated. Gamma-valeroloactone is a preferred lactone for use in the solvent system. Tetrahydrofuran is a preferred furan species for use in the solvent system.

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Research Organization:: Wisconsin Alumni Research Foundation, Madison, WI (United States) Glucan Biorenewables LLC, St. Louis, MO (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC02-07ER64494

Assignee:: Glucan Biorenewables LLC (St. Louis, MO)

Patent Number(s):: 9,359,650

Application Number:: 14/136,564

OSTI ID:: 1256009

Country of Publication:: United States

Language:: English

References (14)

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Biomass pre-treatment for co-production of high-concentration C5- and C6-carbohydrates and their derivatives

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