Process for producing fuel grade alcohol by solvent extraction and carrier gas stripping

Patent · Mon Apr 08 23:00:00 EST 1985

OSTI ID:5421803

Tedder, D W

Alcohol substantially free of water is prepared by fermenting a fermentable biomass feedstock in a fermentation unit, thereby forming an aqueous fermentation liquor containing alcohol; extracting said aqueous fermentation liquor with an organic solvent containing an extractant for said alcohol, thereby forming an alcohol-organic solvent extract phase and an aqueous raffinate; contacting said alcohol-organic solvent phase with a carrier gas thereby separating said alcohol from said alcohol-organic solvent phase and forming an alcohol laden solvent vapor; and separating alcohol substantially free of water from said carrier gas.

• Assignee: Georgia Tech Research Corporation
• Patent Number(s): US 4510242
• OSTI ID: 5421803
• Country of Publication: United States
• Language: English

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ALCOHOLS
AQUEOUS SOLUTIONS
BIOCONVERSION
BIOMASS
CARBOHYDRATES
DISPERSIONS
ENERGY SOURCES
ETHANOL
EXTRACTION
FERMENTATION
HYDROXY COMPOUNDS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
PRODUCTION
RENEWABLE ENERGY SOURCES
SACCHARIDES
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENTS