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Electro-autotrophic synthesis of higher alcohols

Patent ·
OSTI ID:1222639
;
The disclosure provides a process 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.
Research Organization:
The Regents of the University of California, Oakland, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AR0000085
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Number(s):
9,150,889
Application Number:
13/522,288
OSTI ID:
1222639
Country of Publication:
United States
Language:
English

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