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

Abstract

A method is described 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:
; ;
Issue Date:
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
597084
Patent Number(s):
5730837
Application Number:
PAN: 8-348,469
Assignee:
Midwest Research Inst., Kansas City, MO (United States)
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 24 Mar 1998
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; WOOD; HERBS; HYDROLYSIS; SEPARATION PROCESSES; CELLULOSE; LIGNIN; SACCHARIDES; HEMICELLULOSE; ORGANIC SOLVENTS

Citation Formats

Black, S K, Hames, B R, and Myers, M D. Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars. United States: N. p., 1998. Web.
Black, S K, Hames, B R, & Myers, M D. Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars. United States.
Black, S K, Hames, B R, and Myers, M D. Tue . "Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars". United States.
@article{osti_597084,
title = {Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars},
author = {Black, S K and Hames, B R and Myers, M D},
abstractNote = {A method is described 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 = {3}
}