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Title: Biological production of acetic acid from waste gases with Clostridium ljungdahlii

Abstract

A method and apparatus for converting waste gases from industrial processes such as oil refining, carbon black, coke, ammonia, and methanol production, into useful products. The method includes introducing the waste gases into a bioreactor where they are fermented to various organic acids or alcohols by anaerobic bacteria within the bioreactor. These valuable end products are then recovered, separated and purified. In an exemplary recovery process, the bioreactor raffinate is passed through an extraction chamber into which one or more non-inhibitory solvents are simultaneously introduced to extract the product. Then, the product is separated from the solvent by distillation. Gas conversion rates can be maximized by use of centrifuges, hollow fiber membranes, or other means of ultrafiltration to return entrained anaerobic bacteria from the bioreactor raffinate to the bioreactor itself, thus insuring the highest possible cell concentration.

Inventors:
 [1]
  1. (Fayetteville, AR)
Issue Date:
Research Org.:
Bioengineering Resources Inc
Sponsoring Org.:
USDOE
OSTI Identifier:
871840
Patent Number(s):
5807722
Assignee:
Bioengineering Resources, Inc. (Fayetteville, AR) CHO
DOE Contract Number:  
FC02-90CE40939
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
biological; production; acetic; acid; waste; gases; clostridium; ljungdahlii; method; apparatus; converting; industrial; processes; oil; refining; carbon; black; coke; ammonia; methanol; useful; products; introducing; bioreactor; fermented; various; organic; acids; alcohols; anaerobic; bacteria; valuable; recovered; separated; purified; exemplary; recovery; process; raffinate; passed; extraction; chamber; non-inhibitory; solvents; simultaneously; introduced; extract; product; solvent; distillation; gas; conversion; rates; maximized; centrifuges; hollow; fiber; membranes; means; ultrafiltration; return; entrained; insuring; cell; concentration; gas conversion; waste gases; industrial processes; acetic acid; ethanol production; useful products; waste gas; recovery process; industrial process; carbon black; anaerobic bacteria; organic acids; organic acid; methanol production; clostridium ljungdahlii; oil refining; extraction chamber; converting waste; various organic; conversion rates; hollow fiber; biological production; /435/

Citation Formats

Gaddy, James L. Biological production of acetic acid from waste gases with Clostridium ljungdahlii. United States: N. p., 1998. Web.
Gaddy, James L. Biological production of acetic acid from waste gases with Clostridium ljungdahlii. United States.
Gaddy, James L. Thu . "Biological production of acetic acid from waste gases with Clostridium ljungdahlii". United States. https://www.osti.gov/servlets/purl/871840.
@article{osti_871840,
title = {Biological production of acetic acid from waste gases with Clostridium ljungdahlii},
author = {Gaddy, James L.},
abstractNote = {A method and apparatus for converting waste gases from industrial processes such as oil refining, carbon black, coke, ammonia, and methanol production, into useful products. The method includes introducing the waste gases into a bioreactor where they are fermented to various organic acids or alcohols by anaerobic bacteria within the bioreactor. These valuable end products are then recovered, separated and purified. In an exemplary recovery process, the bioreactor raffinate is passed through an extraction chamber into which one or more non-inhibitory solvents are simultaneously introduced to extract the product. Then, the product is separated from the solvent by distillation. Gas conversion rates can be maximized by use of centrifuges, hollow fiber membranes, or other means of ultrafiltration to return entrained anaerobic bacteria from the bioreactor raffinate to the bioreactor itself, thus insuring the highest possible cell concentration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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