US 11,697,625 B2
Direct synthesis of light olefins from carbon dioxide using yttria-stabilized zirconia support
Erdem Sasmaz, Irvine, CA (US); and Sunkyu Kim, Irvine, CA (US)
Assigned to THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Filed by THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Filed on Oct. 28, 2021, as Appl. No. 17/452,641.
Claims priority of provisional application 63/107,146, filed on Oct. 29, 2020.
Prior Publication US 2022/0135495 A1, May 5, 2022
Int. Cl. C07C 1/12 (2006.01); B01J 23/08 (2006.01); B01J 21/06 (2006.01); B01J 29/85 (2006.01)
CPC C07C 1/12 (2013.01) [B01J 21/066 (2013.01); B01J 23/08 (2013.01); B01J 29/85 (2013.01); C07C 2521/06 (2013.01); C07C 2523/08 (2013.01); C07C 2529/85 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method of synthesizing a light olefin, the method comprising:
a. precipitating an indium-based catalyst onto cubic phase yttria-stabilized zirconia (YSZ) to produce a supported indium-based catalyst;
b. adding the supported indium-based catalyst into a reactor;
c. mixing a molecular sieve with the supported indium-based catalyst in the reactor;
d. introducing a stream of hydrogen gas and a stream of carbon dioxide gas into the reactor; and
e. heating the reactor, wherein a hydrogenation reaction occurs between the hydrogen gas and carbon dioxide gas to synthesize the light olefin;
wherein the cubic phase YSZ prevents deactivation of the indium-based catalyst during hydrogenation.