Journal
12TH INTERNATIONAL CONFERENCE ON GREENHOUSE GAS CONTROL TECHNOLOGIES, GHGT-12
Volume 63, Issue -, Pages 1122-1128Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2014.11.121
Keywords
Thermodynamic; Modeling; Protonation; pKa; Ionic strenght
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An extension of the Debye-Huckel model was used to re-evaluate the MDEA protonation constant as a function of temperature and ionic strength. The Debye-Hckel limiting slope was estimated and the suggested parameters are successfully representing the data. The ionic strength was calculated by the speciation generated in the system and not only from the salt background concentration. Correlations for the protonation constant of MDEA were proposed for infinite dilution and high ionic strength and the standard thermodynamic properties for protonated MDEA were calculated. (C) 2014 The Authors. Published by Elsevier Ltd.
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