US 12,447,452 B2
Combined reformer and catalyst replacement method thereof
Gyeong Mo Nam, Yongin (KR); Bong Keun Kim, Yongin (KR); and Su Nam You, Yongin (KR)
Assigned to Doosan Enerbility Co., Ltd., Changwon-si (KR)
Filed by DOOSAN ENERBILITY CO., LTD., Changwon-si (KR)
Filed on Aug. 8, 2023, as Appl. No. 18/366,778.
Claims priority of application No. 10-2022-0101497 (KR), filed on Aug. 12, 2022; application No. 10-2022-0101498 (KR), filed on Aug. 12, 2022; application No. 10-2023-0079218 (KR), filed on Jun. 20, 2023; and application No. 10-2023-0079219 (KR), filed on Jun. 20, 2023.
Prior Publication US 2024/0050910 A1, Feb. 15, 2024
Int. Cl. B01J 6/00 (2006.01); B01J 8/00 (2006.01); B01J 8/02 (2006.01); B01J 8/04 (2006.01); B01J 8/06 (2006.01)
CPC B01J 6/008 (2013.01) [B01J 8/001 (2013.01); B01J 8/0242 (2013.01); B01J 8/0285 (2013.01); B01J 8/0449 (2013.01); B01J 8/0465 (2013.01); B01J 8/0492 (2013.01); B01J 8/0496 (2013.01); B01J 8/062 (2013.01); B01J 2208/00504 (2013.01); B01J 2208/065 (2013.01); B01J 2219/00081 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A combined reformer, comprising:
a body;
a first catalyst tube disposed inside the body and reacting at a first temperature;
a second catalyst tube disposed inside the body and reacting at a second temperature higher than the first temperature;
a connection tube connecting the first catalyst tube and the second catalyst tube to each other; and
a combustion unit configured to supply heat to the first catalyst tube and the second catalyst tube,
wherein a portion of the first catalyst tube, a portion of the second catalyst tube, and the connection tube are detachably installed on an outer surface of the body from an outside of the body,
wherein the portion of the first catalyst tube, the portion of the second catalyst tube, and the connection tube are fixed to each other so as to be integrally separable from the body.