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Title: Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars

Abstract

A method for separating lignocellulosic material into (a) lignin, (b) cellulose, and (c) hemicellulose and dissolved sugars. Wood or herbaceous biomass is digested at elevated temperature in a single-phase mixture of alcohol, water and a water-immiscible organic solvent (e.g., a ketone). After digestion, the amount of water or organic solvent is adjusted so that there is phase separation. The lignin is present in the organic solvent, the cellulose is present in a solid pulp phase, and the aqueous phase includes hemicellulose and any dissolved sugars.

Inventors:
 [1];  [2];  [3]
  1. (Denver, CO)
  2. (Westminster, CO)
  3. (Dacono, CO)
Issue Date:
Research Org.:
Midwest Research Institute
OSTI Identifier:
871429
Patent Number(s):
5730837
Assignee:
Midwest Research Institute (Kansas City, MO) NREL
DOE Contract Number:  
AC36-83CH10093
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; separating; lignocellulosic; material; lignin; cellulose; dissolved; sugars; hemicellulose; wood; herbaceous; biomass; digested; elevated; temperature; single-phase; mixture; alcohol; water; water-immiscible; organic; solvent; ketone; digestion; amount; adjusted; phase; separation; solid; pulp; aqueous; cellulosic material; phase separation; organic solvent; elevated temperature; aqueous phase; lignocellulosic material; water-immiscible organic; phase mixture; separating lignocellulosic; dissolved sugars; immiscible organic; /162/127/

Citation Formats

Black, Stuart K., Hames, Bonnie R., and Myers, Michele D. Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars. United States: N. p., 1998. Web.
Black, Stuart K., Hames, Bonnie R., & Myers, Michele D. Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars. United States.
Black, Stuart K., Hames, Bonnie R., and Myers, Michele D. Thu . "Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars". United States. https://www.osti.gov/servlets/purl/871429.
@article{osti_871429,
title = {Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars},
author = {Black, Stuart K. and Hames, Bonnie R. and Myers, Michele D.},
abstractNote = {A method for separating lignocellulosic material into (a) lignin, (b) cellulose, and (c) hemicellulose and dissolved sugars. Wood or herbaceous biomass is digested at elevated temperature in a single-phase mixture of alcohol, water and a water-immiscible organic solvent (e.g., a ketone). After digestion, the amount of water or organic solvent is adjusted so that there is phase separation. The lignin is present in the organic solvent, the cellulose is present in a solid pulp phase, and the aqueous phase includes hemicellulose and any dissolved sugars.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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