	US 11,679,380 B2
	Double-layer-structured catalyst for dehydrogenating light hydrocarbons
Young-san Yoo, Gyeonggi-do (KR); Hyun A Choi, Incheon (KR); Dong Kun Kang, Gyeonggi-do (KR); and Young Ho Lee, Gyeonggi-do (KR)
Assigned to HEESUNG CATALYSTS CORPORATION, Gyeonggi-Do (KR)
Appl. No. 17/57,216
Filed by HEESUNG CATALYSTS CORPORATION, Gyeonggi-do (KR)
PCT Filed May 17, 2019, PCT No. PCT/KR2019/005911 § 371(c)(1), (2) Date Nov. 20, 2020, PCT Pub. No. WO2019/225906, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 10-2018-0057572 (KR), filed on May 21, 2018.
Prior Publication US 2021/0205802 A1, Jul. 8, 2021
Int. Cl. B01J 35/00 (2006.01); B01J 23/58 (2006.01); B01J 23/62 (2006.01); B01J 35/02 (2006.01); C07C 5/32 (2006.01)

CPC B01J 35/0073 (2013.01) [B01J 23/58 (2013.01); B01J 23/626 (2013.01); B01J 35/02 (2013.01); C07C 5/325 (2013.01)]

2 Claims

1. A double-layer structured catalyst for use in dehydrogenation of light hydrocarbon gas within a range of C3 to C6, the catalyst comprising:

a platinum/tin alloy, a tin component, and an alkali metal which are carried in a theta-alumina carrier,

wherein the tin component is present in an entire region inside the carrier, and the platinum/tin alloy is present at a single platinum/tin molar ratio within a range of a predetermined thickness from an outer periphery of the carrier,

wherein the predetermined thickness from the outer periphery of the carrier is 300 to 500 μm thick.