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Title: Improved fermentative alcohol production. [Patent application]

Abstract

An improved fermentation process is described for producing alcohol which includes the combination of vacuum fermentation and vacuum distillation. Preferably, the vacuum distillation is carried out in two phases, one a fermentor proper operated at atmospheric pressure and a flash phase operated at reduced pressure with recycle of fermentation brew having a reduced alcohol content to the fermentor, using vapor recompression heating of the flash-pot recycle stream to heat the flash-pot or the distillation step, and using water load balancing (i.e., the molar ratio of water in the fermentor feed is the same as the molar ratio of water in the distillation overhead).

Inventors:
; ; ;
Publication Date:
OSTI Identifier:
5962255
Assignee:
TIC; ERA-07-010407; EDB-82-019219
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; CHEMICAL REACTORS; DESIGN; DISTILLATION EQUIPMENT; ETHANOL; BIOSYNTHESIS; DISTILLATION; VACUUM FERMENTATION; ALCOHOLS; BIOCONVERSION; EQUIPMENT; FERMENTATION; HYDROXY COMPOUNDS; ORGANIC COMPOUNDS; SEPARATION PROCESSES; SYNTHESIS; 090222* - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989); 140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)

Citation Formats

Wilke, C.R., Maiorella, B.L., Blanch, H.W., and Cysewski, G.R. Improved fermentative alcohol production. [Patent application]. United States: N. p., 1980. Web.
Wilke, C.R., Maiorella, B.L., Blanch, H.W., & Cysewski, G.R. Improved fermentative alcohol production. [Patent application]. United States.
Wilke, C.R., Maiorella, B.L., Blanch, H.W., and Cysewski, G.R. Wed . "Improved fermentative alcohol production. [Patent application]". United States.
@article{osti_5962255,
title = {Improved fermentative alcohol production. [Patent application]},
author = {Wilke, C.R. and Maiorella, B.L. and Blanch, H.W. and Cysewski, G.R.},
abstractNote = {An improved fermentation process is described for producing alcohol which includes the combination of vacuum fermentation and vacuum distillation. Preferably, the vacuum distillation is carried out in two phases, one a fermentor proper operated at atmospheric pressure and a flash phase operated at reduced pressure with recycle of fermentation brew having a reduced alcohol content to the fermentor, using vapor recompression heating of the flash-pot recycle stream to heat the flash-pot or the distillation step, and using water load balancing (i.e., the molar ratio of water in the fermentor feed is the same as the molar ratio of water in the distillation overhead).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {11}
}