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Biological production of ethanol from waste gases with Clostridium ljungdahlii

United States Patent

October 24, 2000
View the Complete Patent at the US Patent & Trademark Office
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.
Gaddy; James L. (Fayetteville, AR)
Bioengineering Resources, Inc. (Fayettville, AK)
08/ 674,417
July 1, 1996
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with U.S. Government support under Cooperative Agreement Numbers DE-FC02-90CE40939 and DE-FC04-94AL98770 awarded by the Department of Energy. Hence, the U.S. Government may have certain license rights in this invention.