Skip to Content
Find More Like This
Return to Search


United States Patent Application

View the Complete Application at the US Patent & Trademark Office
The disclosure provides a process and bioreactor that converts CO.sub.2 to higher alcohols (e.g. isobutanol) using electricity as the energy source. This process stores electricity (e.g. from solar energy, nuclear energy, and the like) in liquid fuels that can be used as high octane number gasoline substitutes. Instead of deriving reducing power from photosynthesis, this process derives reducing power from electrically generated mediators, either H.sub.2 or formate. H.sub.2 can be derived from electrolysis of water. Formate can be generated by electrochemical reduction of CO.sub.2. After delivering the reducing power in the cell, formate becomes CO.sub.2 and recycles back. Therefore, the biological CO.sub.2 fixation process can occur in the dark.
Liao, James C. (Los Angeles, CA), Li, Han (Qingdao, CN)
14/ 375,782
February 15, 2013
STATEMENT REGARDING FEDERAL SPONSORSHIP [0002] This invention was made with Government support under Grant No. DE-AR0000085, awarded by the U.S. Department of Energy, Advanced Research Projects Agency. The Government has certain rights in this invention.