Title: Process for concentrated biomass saccharification

Abstract

Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

Inventors:

Hennessey, Susan M ^[1]; Seapan, Mayis ^[2]; Elander, Richard T ^[3]; Tucker, Melvin P ^[4]

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+ Show Inventor Affiliations

1. Avondale, PA
2. Landenberg, PA
3. Evergreen, CO
4. Lakewood, CO

Issue Date:

2010-10-05

Research Org.:

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

Sponsoring Org.:

USDOE

OSTI Identifier:

1016153

Patent Number(s):

7807419

Application Number:

11/843,114

Assignee:

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

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 {

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

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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 {

C12P7/00 - Preparation of oxygen-containing organic compounds

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

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 {

C12P7/10 - substrate containing cellulosic material
C12P19/02 - Monosaccharides
C12P19/14 - produced by the action of a carbohydrase {

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DOE Contract Number:  

FC36-03GO13146

Resource Type:

Patent

Country of Publication:

United States

Language:

English