Global to push GA events into
skip to main content

Title: Clostridium strain which produces acetic acid from waste gases

A method and apparatus are disclosed 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. 4 figs.
Inventors:
Issue Date:
OSTI Identifier:
426629
Assignee:
PTO; SCA: 090900; 099000; PA: EDB-97:024746; SN: 97001724497
Patent Number(s):
US 5,593,886/A/
Application Number:
PAN: 8-258,446
Contract Number:
FC02-90CE40939
Resource Relation:
Other Information: PBD: 14 Jan 1997
Research Org:
Bioengineering Resources Inc
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; GASEOUS WASTES; ACETIC ACID; ALCOHOLS; ANAEROBIC DIGESTION; BIOSYNTHESIS; SOLVENT EXTRACTION; SEPARATION EQUIPMENT; CLOSTRIDIUM; PRODUCTIVITY; RECYCLING