US 12,330,135 B2
Composite layer agglomerating adsorbent and preparation process thereof
Ningning Gao, Beijing (CN); Huiguo Wang, Beijing (CN); and Yusi Liu, Beijing (CN)
Assigned to CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, Beijing (CN)
Appl. No. 17/596,943
Filed by CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, Beijing (CN)
PCT Filed Jun. 24, 2020, PCT No. PCT/CN2020/098147
§ 371(c)(1), (2) Date Dec. 22, 2021,
PCT Pub. No. WO2020/259595, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 201910560834.0 (CN), filed on Jun. 26, 2019.
Prior Publication US 2022/0258124 A1, Aug. 18, 2022
Int. Cl. B01J 20/18 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C07C 7/13 (2006.01); B01D 15/18 (2006.01)
CPC B01J 20/186 (2013.01) [B01J 20/28004 (2013.01); B01J 20/28035 (2013.01); B01J 20/3007 (2013.01); B01J 20/3042 (2013.01); B01J 20/3078 (2013.01); B01J 20/3085 (2013.01); C07C 7/13 (2013.01); B01D 15/1807 (2013.01); B01D 15/185 (2013.01); B01J 2220/42 (2013.01); B01J 2220/603 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A composite layer agglomerating adsorbent, comprising an outer adsorbent layer containing a low silica X molecular sieve and an inner adsorbent layer containing a high silica X molecular sieve, the low silica X molecular sieve has a silica/alumina molar ratio of 2.07-2.18, the high silica X molecular sieve has a silica/alumina molar ratio of 2.2-2.5, based on the total amount of the adsorbent, the adsorbent comprises 95.0-100 mass % of the X molecular sieve and 0-5.0 mass % of a matrix, the cation sites of the X molecular sieve in the adsorbent are occupied by a metal of Group IIA or occupied together by a metal of Group IA and a metal of Group IIA.