Title: Biomass pretreatment

Abstract

A method is provided for producing an improved pretreated biomass product for use in saccharification followed by fermentation to produce a target chemical that includes removal of saccharification and or fermentation inhibitors from the pretreated biomass product. Specifically, the pretreated biomass product derived from using the present method has fewer inhibitors of saccharification and/or fermentation without a loss in sugar content.

Inventors:

Hennessey, Susan Marie; Friend, Julie; Elander, Richard T; Tucker, III, Melvin P

Issue Date:

Tue May 21 00:00:00 EDT 2013

Research Org.:

Alliance for Sustainable Energy LLC, Golden, CO (United States); E I du Pont de Nemours and Company, Wilmington, DE (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1083984

Patent Number(s):

8445236

Application Number:

11/843,157

Assignee:

Alliance for Sustainable Energy LLC (Golden, CO); E I du Pont de Nemours and Company (Wilmington, DE)

Patent Classifications (CPCs):

C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {

C - CHEMISTRY C13 - SUGAR INDUSTRY C13K - SACCHARIDES, OTHER THAN SUCROSE, OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DI-, OLIGO- OR POLYSACCHARIDES

Show more

C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {

C12P19/02 - Monosaccharides
C12P2201/00 - Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
C12P7/10 - substrate containing cellulosic material

C - CHEMISTRY C13 - SUGAR INDUSTRY C13K - SACCHARIDES, OTHER THAN SUCROSE, OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DI-, OLIGO- OR POLYSACCHARIDES

C13K1/02 - obtained by saccharification of cellulosic materials

D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS

D21C11/0007 - {Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
D21C3/024 - {with NH3 or H2O}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E50/10 - Biofuels
Y02E50/30 - Fuel from waste

Show less

DOE Contract Number:  

FC36-03GO13146

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

09 BIOMASS FUELS