US 11,806,704 B2
Ammonia membrane reactor comprising a composite membrane
Young Suk Jo, Seoul (KR); Chang Won Yoon, Seoul (KR); Hyuntae Sohn, Seoul (KR); Hyangsoo Jeong, Seoul (KR); Seong Cheol Jang, Seoul (KR); Yeong Cheon Kim, Seoul (KR); Jonghee Han, Seoul (KR); and Suk Woo Nam, Seoul (KR)
Assigned to KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed by KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR)
Filed on Jul. 7, 2022, as Appl. No. 17/859,485.
Application 17/859,485 is a continuation of application No. 16/719,991, filed on Dec. 19, 2019, granted, now 11,465,114.
Claims priority of application No. 10-2018-0165479 (KR), filed on Dec. 19, 2018.
Prior Publication US 2022/0347644 A1, Nov. 3, 2022
Int. Cl. B01J 8/02 (2006.01); B01J 19/24 (2006.01); B01J 23/46 (2006.01); B01J 23/10 (2006.01); B01J 29/08 (2006.01); B01J 35/04 (2006.01); B01J 35/00 (2006.01); C01B 3/04 (2006.01); H01M 8/0606 (2016.01); B01J 23/648 (2006.01)
CPC B01J 8/0278 (2013.01) [B01J 19/2475 (2013.01); B01J 23/10 (2013.01); B01J 23/462 (2013.01); B01J 23/6486 (2013.01); B01J 29/084 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); C01B 3/047 (2013.01); H01M 8/0606 (2013.01); B01J 2208/00884 (2013.01); B01J 2208/00973 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of processing ammonia comprising:
flowing ammonia into a reactor comprising a reaction region; a permeate region; and a composite membrane disposed at a boundary of the reaction region and the permeate region,
wherein the reaction region comprises a bed filled with a dehydrogenation catalyst for dehydrogenation reaction,
wherein the dehydrogenation catalyst includes ruthenium carried on a rubidium-doped porous support,
wherein the composite membrane comprises a support layer including a metal with a body-centered-cubic crystal structure, and a catalyst layer including a palladium (Pd) or a palladium alloy disposed on the support layer,
wherein the metal with the body-centered-cubic crystal structure includes one or more of vanadium (V), niobium (Nb), or tantalum (Ta), and a surface of the support layer is in contact with the reaction region and a surface of the catalyst layer is in contact with the permeate region,
converting the ammonia into hydrogen (H2) by the dehydrogenation reaction in the presence of the dehydrogenation catalyst, and
separating the hydrogen using the composite membrane with the hydrogen entering the permeate region.