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

Black, Stuart K; Hames, Bonnie R; Myers, Michele D

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

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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:

Black, Stuart K ^[1]; Hames, Bonnie R ^[2]; Myers, Michele D ^[3]

Denver, CO
Westminster, CO
Dacono, CO

Issue Date:: 1998-01-01

Research Org.:: Midwest Research Institute, Kansas City, MO (United States)

OSTI Identifier:: 871429

Patent Number(s):: 5730837

Assignee:: Midwest Research Institute (Kansas City, MO)

Patent Classifications (CPCs):: D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS

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D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS
D21C5/00 - Other processes for obtaining cellulose, e.g. cooking cotton linters
D21C3/20 - with organic solvents {or in solvent environment}
D21C11/0007 - {Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for

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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.

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                    Black, Stuart K, Hames, Bonnie R, & Myers, Michele D. Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars.  United States.

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                    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.

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@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}

}

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