US 12,257,566 B2
Carbon dioxide absorbent including phenolate-based ionic liquid and aliphatic alcohol and method of separating carbon dioxide using the same
Lim Ok Pyun, Daejeon (KR); Ilgu Jung, Daejeon (KR); Byul Ha Na Min, Daejeon (KR); Junga Lee, Daejeon (KR); and Jisu Jeong, Daejeon (KR)
Assigned to SK Innovation Co., Ltd., Seoul (KR)
Appl. No. 18/257,524
Filed by SK Innovation Co., Ltd., Seoul (KR)
PCT Filed Jan. 10, 2023, PCT No. PCT/KR2023/000440
§ 371(c)(1), (2) Date Jun. 14, 2023,
PCT Pub. No. WO2023/140553, PCT Pub. Date Jul. 27, 2023.
Claims priority of application No. 10-2022-0009893 (KR), filed on Jan. 24, 2022; and application No. 10-2023-0002827 (KR), filed on Jan. 9, 2023.
Prior Publication US 2025/0001390 A1, Jan. 2, 2025
Int. Cl. B01J 20/22 (2006.01); B01D 53/14 (2006.01); B01J 20/34 (2006.01)
CPC B01J 20/22 (2013.01) [B01D 53/1475 (2013.01); B01J 20/3483 (2013.01); B01D 2252/202 (2013.01); B01D 2252/204 (2013.01); B01D 2252/30 (2013.01); B01D 2257/504 (2013.01)] 20 Claims
 
1. A carbon dioxide absorbent comprising:
an ionic liquid comprising a choline-based cation and a phenolate-based anion; and
an aliphatic alcohol.