Biological production of ethanol from waste gases with Clostridium ljungdahlii
AssigneeBioengineering Resources, Inc.
InventorJames L. Gaddy
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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 is disclosed. The method includes introducing the waste gases into a bioreactor where they are fermented to various product, such as organic acids, alcohols H.sub.2, SCP, and salts of organic acids by anaerobic bacteria within the bioreactor. These valuable end products are then recovered, separated and purified.
Claims27
A process for producing ethanol comprising the steps of:
- fermenting a gas composition comprising carbon monoxide anaerobically with a bacterial strain selected from the group consisting of Clostridium ljungdahlii strain O-52 ATCC No. 55989 and Clostridium ljungdahlii strain C-01 ATCC No. 55988 in an aqueous nutrient media in a bioreactor to produce a broth;
- removing continuously a portion of said broth from said bioreactor;
- and
- recovering the ethanol therefrom.
A process for producing ethanol comprising the steps of:
- fermenting a gas composition comprising carbon monoxide carbon dioxide and hydrogen anaerobically with a bacterial strain selected from the group consisting of Clostridium ljungdahlii strain O-52 ATCC No. 55989 and Clostridium ljungdahlii strain C-01 ATCC No. 55988 in an aqueous nutrient media in a bioreactor to produce a broth;
- removing continuously a portion of said broth from said bioreactor;
- and
- recovering the ethanol therefrom.
A biologically pure culture of Clostridium ljungdahlii strain O-52, ATCC Accession No. 55989.
A biologically pure culture of Clostridium ljungdahlii strain C-01, ATCC Accession No. 55988.
Dependencies are inferred from the claim text.