US 12,330,938 B2
NG pyrolysis system and method for controlling same
Han Eol Song, Seongnam-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Mar. 15, 2022, as Appl. No. 17/694,943.
Claims priority of application No. 10-2021-0076138 (KR), filed on Jun. 11, 2021.
Prior Publication US 2022/0396478 A1, Dec. 15, 2022
Int. Cl. C01B 3/24 (2006.01); C01B 3/50 (2006.01)
CPC C01B 3/24 (2013.01) [C01B 3/508 (2013.01); C01B 2203/0266 (2013.01); C01B 2203/043 (2013.01); C01B 2203/0827 (2013.01); C01B 2203/0883 (2013.01); C01B 2203/1241 (2013.01); C01B 2203/1604 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A natural gas pyrolysis system comprising:
a cooler installed to cool NG supplied from a compressor to a pyrolysis reactor and configured to independently use multiple refrigerants;
a first refrigerant supply device configured to supply a first refrigerant for the cooler; and
a second refrigerant supply device configured to supply, to the cooler, a fuel gas for a burner, comprising an off-gas and/or NG which has not passed through the compressor, as a second refrigerant for the cooler.