US 11,666,853 B2
Highly efficient CO2 absorbent composition and method for preparing the same
In Wook Nah, Seoul (KR); Jae Ik Kim, Seoul (KR); Soon Jong Kwak, Seoul (KR); In Hwan Oh, Seoul (KR); Daeseung Kyung, Daejeon (KR); Youngjong Sim, Seongnam-si (KR); Yeongmin Kim, Daejeon (KR); Han-Guen Ahn, Yongin-si (KR); and Sang-Ick Choi, Sejong-si (KR)
Assigned to KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR); and KOREA LAND & HOUSING CORPORATION, Jinju-si (KR)
Filed by KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR); and KOREA LAND & HOUSING CORPORATION, Jinju-si (KR)
Filed on Feb. 15, 2021, as Appl. No. 17/175,705.
Claims priority of application No. 10-2021-0011734 (KR), filed on Jan. 27, 2021.
Prior Publication US 2022/0233997 A1, Jul. 28, 2022
Int. Cl. B01D 53/14 (2006.01)
CPC B01D 53/1493 (2013.01) [B01D 53/1475 (2013.01); B01D 2252/2041 (2013.01); B01D 2252/20415 (2013.01); B01D 2252/20421 (2013.01); B01D 2252/20484 (2013.01); B01D 2257/504 (2013.01); B01D 2258/01 (2013.01); B01D 2258/05 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A carbon dioxide absorbent composition comprising:
an N-alkylaminoalkanol represented by [Chemical Formula 1];
one or more polyhydroxyamine-based compounds selected from a group consisting of polyhydroxyamine-based compounds represented by [Chemical Formula 2] to [Chemical Formula 4]; and
one or more of ethylenediamine or diethylenetriamine:

OG Complex Work Unit Chemistry
wherein n and m are integers from 1 to 10, and
R is hydrogen (H), methyl (—CH3), ethyl (—CH2CH3), propyl (—CH2CH2CH3), hydroxymethyl (HO—CH2—), hydroxyethyl (HO—CH2CH2—), hydroxypropyl (HO—CH2CH2CH2—), C4-C10 alkyl, C4-C10 cycloalkyl, C4-C10 hydroxyalkyl, or C4-C10 hydroxycycloalkyl,

OG Complex Work Unit Chemistry
wherein in [Chemical Formula 2] to [Chemical Formula 4], X is one of Cl, Br, I or OH, and n is from 1 to 10.