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Water/carbonate stripping for CO.sub.2 capture adsorber regeneration and CO.sub.2 delivery to photoautotrophs

United States Patent

August 11, 2015
View the Complete Patent at the US Patent & Trademark Office
The invention provides systems and methods for the delivery of carbon to photoautotrophs. The invention utilizes low energy regeneration of adsorbent for CO.sub.2 capture and provides for effective CO.sub.2 loading into liquids useful for photoautotroph growth and/or production of photosynthetic products, such as biofuels, via photoautotrophic culture media. The inventive system comprises a fluid/membrane/fluid contactor that provides selective transfer of molecular CO.sub.2 via a dense (non-porous) membrane from a carbonate-based CO.sub.2 snipping solution to a culture medium where the CO.sub.2 is consumed by a photoautotroph for the production of biofuels, biofuel precursors or other commercial products.
Chance; Ronald (Naples, FL), Koros; William J. (Atlanta, GA), McCool; Benjamin (Bonita Springs, FL), Noel; James (Atlanta, GA)
Algenol Biotech LLC (Fort Myers, FL), Georgia Tech Research Corp. (Atlanta, GA)
13/ 417,172
March 9, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under Award Number DE-FOA-0000096 awarded by the Department of Energy. The government has certain rights in the invention.