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Recovery of CO 2 Using Temperature‐Responsive Amine Gel Slurry
Author(s) -
Amano Yuto,
Nagasawa Yuma,
Seida Yoshimi,
Gotoh Takehiko,
Furuya Eiji
Publication year - 2019
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201800165
Subject(s) - slurry , amine gas treating , chemical engineering , adsorption , solvent , desorption , lower critical solution temperature , polymer , swelling , materials science , monomer , chemistry , chromatography , polymer chemistry , organic chemistry , copolymer , composite material , engineering
Temperature‐responsive change in pKa of tertiary amines that are immobilized in the cross‐linked LCST polymer chains (temperature‐responsive amine gels) is applied to the separation and recovery of CO 2 gas. Adsorption and desorption behaviors of CO 2 gas on the temperature‐responsive amine gels are experimentally investigated using a temperature‐controlled gas‐liquid contact reactor with the slurries of the gels. Based on the control of the swelling volume of the temperature‐responsive gels via temperature swing, pKa of the amines in the gels was controlled. Influences of monomer composition in the gels and solvent composition in the slurry on the performance of CO 2 recovery were investigated.