US 11,872,519 B2
Carbon dioxide absorbent and method for separating out carbon dioxide by using same
Kwang Soon Lee, Seoul (KR); Hoon Sic Kim, Seoul (KR); Hui Yong Kim, Seoul (KR); Jung Hwan Kim, Goyang-si (KR); Sung June Hwang, Incheon (KR); Ja Yeop Kim, Seoul (KR); Shin Young Bae, Seoul (KR); Su Jin Na, Incheon (KR); Sang Do Park, Incheon (KR); Tae Sung Park, Daejeon (KR); Yun Je Lee, Daejeon (KR); and Jong Kyun You, Daejeon (KR)
Assigned to SOGANG UNIVERSITY RESEARCH FOUNDATION, Seoul (KR); UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, Yongin-si (KR); KOREA CARBON CAPTURE & SEQUESTRATION R&D CENTER, Daejeon (KR); and KOREA INSTITUTE OF ENERGY RESEARCH, Daejeon (KR)
Appl. No. 16/966,199
Filed by SOGANG UNIVERSITY RESEARCH FOUNDATION, Seoul (KR); UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, Yongin-si (KR); KOREA CARBON CAPTURE & SEQUESTRATION R & D CENTER, Daejeon (KR); and KOREA INSTITUTE OF ENERGY RESEARCH, Daejeon (KR)
PCT Filed Oct. 16, 2018, PCT No. PCT/KR2018/012171
§ 371(c)(1), (2) Date Jul. 30, 2020,
PCT Pub. No. WO2019/164081, PCT Pub. Date Aug. 29, 2019.
Claims priority of application No. 10-2018-0020969 (KR), filed on Feb. 22, 2018.
Prior Publication US 2021/0039040 A1, Feb. 11, 2021
Int. Cl. B01D 53/14 (2006.01)
CPC B01D 53/1493 (2013.01) [B01D 53/1425 (2013.01); B01D 53/1475 (2013.01); B01D 2252/103 (2013.01); B01D 2252/205 (2013.01); B01D 2252/2025 (2013.01); B01D 2252/2026 (2013.01); B01D 2252/20415 (2013.01); B01D 2252/504 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A carbon dioxide absorbent comprising a triamine, an ether, and water,
wherein the triamine is selected from the group consisting of 2,2′-iminobis (N,N′-dimethylethylamine), N,N-bis[2-(methylamino)ethyl]methylamine, N,N-bis[3-(methylamino)propyl]methylamine, N,N′-(iminobisethylene)bismethanamine, and N,N′-(iminobispropylene)bismethanamine, and
wherein the ether is a tetraalkylene glycol dialkyl ether and selected from the group consisting of tetraethylene glycol dimethyl ether, tetraethylene glycol diethyl ether, tetraethylene glycol dipropyl ether, tetraethylene glycol dibutyl ether, tetrapropylene glycol dimethyl ether, tetrapropylene glycol diethyl ether, tetrapropylene glycol dipropyl ether, and tetrapropylene glycol dibutyl ether,
wherein the ether is contained in an amount of 20 to 40 wt. % with respect to the total weight of the absorbent,
wherein the water is comprised in an amount of 1.0 to 9.0 wt. % with respect to the total weight of the absorbent, and
wherein the triamine is contained in an amount of 50 to 90 wt. % with respect to the total weight of the absorbent.