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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]
+ Show Inventor Affiliations
  1. El Cerrito, CA
  2. Berkeley, CA
  3. Kennewick, WA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (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):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
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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.
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Wilke, Charles R, Maiorella, Brian L, Blanch, Harvey W, & Cysewski, Gerald R. Fermentative alcohol production. United States.
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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.
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@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}
}
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