US 11,859,135 B2
Thermally integrated process for the production of liquid fuels with a solid oxide electrolyzer
Robert Schuetzle, Sacramento, CA (US); Dennis Schuetzle, Grass Valley, CA (US); Anja Rumplecker Galloway, San Rafael, CA (US); and James Bucher, Boston, MA (US)
Assigned to Infinium Technology, LLC, Sacramento, CA (US)
Filed by Infinium Technology, LLC, Sacramento, CA (US)
Filed on Mar. 2, 2023, as Appl. No. 18/445,018.
Claims priority of provisional application 63/372,384, filed on Mar. 8, 2022.
Prior Publication US 2023/0287274 A1, Sep. 14, 2023
Int. Cl. C10G 2/00 (2006.01); C10L 1/08 (2006.01); C10K 1/00 (2006.01); C25B 1/23 (2021.01); C25B 1/042 (2021.01); C25B 9/19 (2021.01); C25B 15/08 (2006.01); C10L 1/06 (2006.01)
CPC C10G 2/32 (2013.01) [C10K 1/005 (2013.01); C10L 1/06 (2013.01); C10L 1/08 (2013.01); C25B 1/042 (2021.01); C25B 1/23 (2021.01); C25B 9/19 (2021.01); C25B 15/081 (2021.01); C10G 2300/307 (2013.01); C10G 2400/02 (2013.01); C10G 2400/04 (2013.01); C10G 2400/08 (2013.01); C10L 2200/043 (2013.01); C10L 2200/0423 (2013.01); C10L 2200/0446 (2013.01); C10L 2290/38 (2013.01); C10L 2290/46 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A process for the production of liquid fuels comprising:
a. a first electrolysis feed stream comprising steam is fed to a solid oxide electrolyzer;
b. a second electrolysis feed stream comprising carbon dioxide is fed to a solid oxide electrolyzer,
c. low carbon electricity is used in the solid oxide electrolyzer to produce a first electrolysis product stream comprising a mixture of hydrogen and carbon monoxide and a second electrolysis product stream comprising an oxygen-enriched sweep gas;
d. the first electrolysis product steam is cooled to a temperature of less than 200° C. to produce a cooled syngas stream;
e. the cooled syngas stream is fed to a syngas conditioning block to produce a syngas conditioning product stream comprising hydrogen and carbon monoxide where the molar ratio of hydrogen to carbon monoxide is between 2.0 and 2.2 with a pressure of between 250 psig and 400 psig;
f. the syngas conditioning product stream is fed to a liquid fuel production reactor wherein an exothermic chemical reaction allows the conversion of hydrogen and carbon monoxide to liquid fuel production reactor product comprising a liquid hydrocarbon comprising alkanes with carbon numbers from 5 to 23;
g. wherein the liquid fuel production reactor comprises:
i. a tubular fixed bed catalytic reactor and wherein the tubular fixed bed catalytic reactor allows a Fischer-Tropsch reaction;
ii. a steam boiler surrounds the tubular fixed bed catalytic reactor and the boiler is filled with a mixture of steam and liquid water wherein the boiling of the liquid water allows heat to be removed from the tubular fixed bed catalytic reactor and the boiler produces a medium pressure steam;
h. wherein at least a portion of the medium pressure steam is used as the first electrolysis feed stream.