New method for simultaneous saccharification and fermentation. Final report
Technical Report
·
OSTI ID:6492799
It was shown that the operating cost of the industrially practiced simultaneous saccharification and fermentation (S/F) of corn starch to ethanol can be decreased significantly. At a scale of 7.8 million gpy anhydrous ethanol it should be possible to decrease the saccharification/fermentation operating costs from about 16 cents per gallon of ethanol produced (anhydrous basis) to about 13 cents per gallon. The improvement is achieved by recirculating unconverted dextrins in the broth through an external immobilized amyloglucosidase (AMG) reactor maintained at 60/sup 0/C; a microporous hollow fiber filter is used to separate the dextrins from the yeast.
- Research Organization:
- Lehigh Univ., Bethlehem, PA (USA). Biotechnology Research Center
- DOE Contract Number:
- FG07-81ID12342
- OSTI ID:
- 6492799
- Report Number(s):
- DOE/ID/12342-T1; ON: DE83008247
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
090222 -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALCOHOLS
BIOCONVERSION
CARBOHYDRATES
CHEMICAL REACTIONS
COST
DECOMPOSITION
DEXTRIN
ETHANOL
FERMENTATION
FILTERS
FUNGI
HYDROLYSIS
HYDROXY COMPOUNDS
LYSIS
MICROORGANISMS
OPERATING COST
ORGANIC COMPOUNDS
PLANTS
POLYSACCHARIDES
REAGENTS
SACCHARIDES
SACCHARIFICATION
SOLVOLYSIS
STARCH
SYNTHESIS
YEASTS
090222 -- Alcohol Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
ALCOHOLS
BIOCONVERSION
CARBOHYDRATES
CHEMICAL REACTIONS
COST
DECOMPOSITION
DEXTRIN
ETHANOL
FERMENTATION
FILTERS
FUNGI
HYDROLYSIS
HYDROXY COMPOUNDS
LYSIS
MICROORGANISMS
OPERATING COST
ORGANIC COMPOUNDS
PLANTS
POLYSACCHARIDES
REAGENTS
SACCHARIDES
SACCHARIFICATION
SOLVOLYSIS
STARCH
SYNTHESIS
YEASTS