US 12,403,446 B2
Alkanolamine/amine-grafted metal-organic framework-based carbon dioxide adsorbent
Chang Seop Hong, Seoul (KR); Jong Hyeak Choe, Seoul (KR); Yun Seok Chae, Seoul (KR); and Doo San Choi, Seoul (KR)
Assigned to Korea University Research and Business Foundation, Seoul (KR)
Appl. No. 17/916,272
Filed by Korea University Research And Business Foundation, Seoul (KR)
PCT Filed Jan. 15, 2021, PCT No. PCT/KR2021/000613
§ 371(c)(1), (2) Date Sep. 30, 2022,
PCT Pub. No. WO2021/153933, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 10-2020-0011064 (KR), filed on Jan. 30, 2020; and application No. 10-2020-0142694 (KR), filed on Oct. 30, 2020.
Prior Publication US 2023/0148213 A1, May 11, 2023
Int. Cl. B01J 20/22 (2006.01); B01D 53/02 (2006.01); B01D 53/64 (2006.01)
CPC B01J 20/226 (2013.01) [B01D 53/02 (2013.01); B01D 53/64 (2013.01); B01D 2253/204 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A carbon dioxide adsorbent comprising
a porous metal-organic framework;
polyvalent amine introduced into an open metal site of the porous metal-organic framework; and
alkanolamine introduced into the open metal site of the porous metal-organic framework and coexisting with the polyvalent amine,
wherein the alkanolamine is selected from the group consisting of the compounds represented by the following Formulas 7 to 8:

OG Complex Work Unit Chemistry
wherein n is an integer from 1 to 20.