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U.S. Department of Energy
Office of Scientific and Technical Information

Process for extracting ethanol from fermentation broths for direct blending into gasoline while preserving the broth for recycling

Patent ·
OSTI ID:5119451
This patent describes a method of producing gasohol which comprises fermenting ethanol-producing source material in a fermentor, releasing fermentation broth from the fermentor into an extractor, releasing a light alkylate having a boiling range of 50{degrees} - 150{degrees} C into the extractor for countercurrent flow relative to the fermentation broth, flowing the extract from the extractor, blending gasoline with the extract to provide a desired ethanol content in the gasoline, and recycling the extract freed fermentation broth back to the fermentor.
Assignee:
Univ. of Little Rock Arkansas, Little Rock, AK (United States)
Patent Number(s):
A; US 5110319
Application Number:
PPN: US 7-537131
OSTI ID:
5119451
Country of Publication:
United States
Language:
English