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Title: Fermentative alcohol production

Abstract

An improved fermentation process 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:
 [1];  [2];  [2];  [3]
  1. El Cerrito, CA
  2. Berkeley, CA
  3. Kennewick, WA
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
OSTI Identifier:
864400
Patent Number(s):
4359533
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
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 {
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fermentative; alcohol; production; improved; fermentation; process; producing; combination; vacuum; distillation; preferably; carried; phases; fermentor; proper; operated; atmospheric; pressure; flash; phase; reduced; recycle; brew; content; vapor; recompression; heating; flash-pot; stream; heat; step; water; load; balancing; molar; ratio; feed; overhead; load balancing; recycle stream; fermentation process; molar ratio; reduced pressure; atmospheric pressure; vacuum distillation; water load; compression heat; alcohol production; /435/203/

Citation Formats

Wilke, Charles R, Maiorella, Brian L, Blanch, Harvey W, and Cysewski, Gerald R. Fermentative alcohol production. United States: N. p., 1982. Web.
Wilke, Charles R, Maiorella, Brian L, Blanch, Harvey W, & Cysewski, Gerald R. Fermentative alcohol production. United States.
Wilke, Charles R, Maiorella, Brian L, Blanch, Harvey W, and Cysewski, Gerald R. Fri . "Fermentative alcohol production". United States. https://www.osti.gov/servlets/purl/864400.
@article{osti_864400,
title = {Fermentative alcohol production},
author = {Wilke, Charles R and Maiorella, Brian L and Blanch, Harvey W and Cysewski, Gerald R},
abstractNote = {An improved fermentation process 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 = {1982},
month = {1}
}