TY - JOUR
T1 - Thermal degradation comparison of amino acid salts, alkanolamines and diamines in CO2 capture
AU - Huang, Quanzhen
AU - Thompson, Jesse
AU - Lampe, Levi M.
AU - Selegue, John P.
AU - Liu, Kunlei
N1 - Publisher Copyright:
© 2014 The Authors Published by Elsevier Ltd.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2014
Y1 - 2014
N2 - In the selection of candidates for post-combustion CO2 absorption, solvent degradation has become a general concern due to the significant impact on operational cost and the intention to use thermal compression from high temperature stripping to minimize the overall process energy. In this research, structural analogs of amino acid salts, alkanolamines and diamines were thermally degraded in order to explore their thermal stability from a structural standpoint. Functional groups, amine orders and steric effect were investigated for their impact on amine thermal degradation. Primary amines with chain structures showed a thermal stability trend as diamine > alkanolamine > amino acid salt. For alknolamine and diamine structural isomers, the primary amines are more stable than the secondary amines. Steric hindrance around the amine group was shown to play a positive role in protecting amines against thermal degradation.
AB - In the selection of candidates for post-combustion CO2 absorption, solvent degradation has become a general concern due to the significant impact on operational cost and the intention to use thermal compression from high temperature stripping to minimize the overall process energy. In this research, structural analogs of amino acid salts, alkanolamines and diamines were thermally degraded in order to explore their thermal stability from a structural standpoint. Functional groups, amine orders and steric effect were investigated for their impact on amine thermal degradation. Primary amines with chain structures showed a thermal stability trend as diamine > alkanolamine > amino acid salt. For alknolamine and diamine structural isomers, the primary amines are more stable than the secondary amines. Steric hindrance around the amine group was shown to play a positive role in protecting amines against thermal degradation.
KW - Functional groups
KW - Post-combustion
KW - Steric hindrance
KW - Thermal degradation
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U2 - 10.1016/j.egypro.2014.11.197
DO - 10.1016/j.egypro.2014.11.197
M3 - Conference article
AN - SCOPUS:84922885361
SN - 1876-6102
VL - 63
SP - 1882
EP - 1889
JO - Energy Procedia
JF - Energy Procedia
T2 - 12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014
Y2 - 5 October 2014 through 9 October 2014
ER -