US 12,116,284 B2
Energy-efficient system and method for carbon dioxide conversion
Seok Ki Kim, Daejeon (KR); Ki Won Jun, Daejeon (KR); Hae Gu Park, Daejeon (KR); and Sun Mi Hwang, Daejeon (KR)
Assigned to KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon (KR)
Appl. No. 17/053,577
Filed by KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon (KR)
PCT Filed May 29, 2019, PCT No. PCT/KR2019/006437
§ 371(c)(1), (2) Date Nov. 6, 2020,
PCT Pub. No. WO2019/231237, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 10-2018-0061859 (KR), filed on May 30, 2018.
Prior Publication US 2021/0230005 A1, Jul. 29, 2021
Int. Cl. C01B 32/40 (2017.01); C07C 1/04 (2006.01); B01J 23/78 (2006.01); C07C 9/04 (2006.01)
CPC C01B 32/40 (2017.08) [C07C 1/0485 (2013.01); B01J 23/78 (2013.01); B01J 2231/641 (2013.01); C07C 9/04 (2013.01)] 10 Claims
 
1. A system for converting carbon dioxide, suitable for converting carbon dioxide using hydrogen, comprising:
a carbon monoxide generator comprising:
a case having an inlet, into which carbon dioxide and hydrogen are introduced, formed in one side and an outlet, from which a reaction product is discharged, formed in an opposite side,
a catalytic reactor disposed in an internal space of the case and packed with both a catalyst for a reverse water gas shift reaction and a catalyst for a Fischer-Tropsch synthesis reaction so that the reverse water gas shift reaction and the Fischer-Tropsch synthesis reaction are carried out together, thereby increasing a carbon monoxide yield and allowing reaction heat generated in the Fischer-Tropsch synthesis reaction to be used for the reverse water gas shift reaction,
a remover disposed downstream of the carbon monoxide generator and receiving the reaction product from the carbon monoxide generator to separate and remove at least one of H2O and a hydrocarbon from the reaction product; and
a hydrocarbon generator disposed downstream of the remover, packed with a catalyst for a further Fischer-Tropsch synthesis reaction, and receiving a gaseous material from the remover to carry out the further Fischer-Tropsch synthesis reaction to produce a high grade hydrocarbon.