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Rapid Screening of Immobilized Amine CO 2 Sorbents for Steam Stability by Their Direct Contact with Liquid H 2 O
Author(s) -
Wilfong Walter Christopher,
Kail Brian W.,
Gray McMahan L.
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201500189
Subject(s) - amine gas treating , chemistry , chemical stability , sorbent , contact angle , chemical engineering , chromatography , adsorption , organic chemistry , engineering
Rapid testing of hydrophilic and hydrophobic basic immobilized amine sorbents (BIAS) for CO 2 capture stability under practical conditions was achieved by direct contact of the sorbents with flowing liquid water. Losses in both CO 2 capture capacity and amine content of sorbents after exposure to 0.5 mL min −1 of H 2 O at 25 °C for 40 min followed similar trends as losses observed after exposure to N 2 /steam (105 °C, 7 % H 2 O) for 10 h. We also found that hydrophobic TMPED helped stabilize sorbents to H 2 O, which was confirmed by DRIFTS and combined TGA‐DSC.