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

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.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1256009
Assignee:
Glucan Biorenewables LLC (St. Louis, MO) CHO
Patent Number(s):
9,359,650
Application Number:
14/136,564
Contract Number:
FC02-07ER64494
Resource Relation:
Patent File Date: 2013 Dec 20
Research Org:
Wisconsin Alumni Research Foundation, Madison, WI (United States) Glucan Biorenewables LLC, St. Louis, MO (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 59 BASIC BIOLOGICAL SCIENCES; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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  • Anbarasan, Pazhamalai; Baer, Zachary C.; Sreekumar, Sanil
  • Nature, Vol. 491, Issue 7423, p. 235-239
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Soluble and insoluble solids contributions to high-solids enzymatic hydrolysis of lignocellulose
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Techno-economic comparison of process technologies for biochemical ethanol production from corn stover
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Techno-economic modelling and cost functions of CO2 capture processes
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Cellulosic ethanol production from AFEX-treated corn stover using Saccharomyces cerevisiae 424A(LNH-ST)
journal, January 2009
  • Lau, M. W.; Dale, B. E.
  • Proceedings of the National Academy of Sciences, Vol. 106, Issue 5, p. 1368-1373
  • DOI: 10.1073/pnas.0812364106

Producing concentrated solutions of monosaccharides using biphasic CO2–H2O mixtures
journal, January 2012
  • Luterbacher, Jeremy S.; Chew, Qinyi; Li, Yuan
  • Energy & Environmental Science, Vol. 5, Issue 5, p. 6990-7000
  • DOI: 10.1039/C2EE02913H

Features of promising technologies for pretreatment of lignocellulosic biomass
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Ionic liquid pretreatment of cellulosic biomass: Enzymatic hydrolysis and ionic liquid recycle
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  • Shill, Kierston; Padmanabhan, Sasisanker; Xin, Qin
  • Biotechnology and Bioengineering, Vol. 108, Issue 3, p. 511-520
  • DOI: 10.1002/bit.23014

A techno-economical comparison of three processes for the production of ethanol from pine
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