%P 2744-2755
%T A hybrid equation of state and Kent-Eisenberg model for accurate prediction of carbon dioxide separation by aqueous alkanolamines
%A H. Suleman
%A A.S. Maulud
%A Z. Man
%I Taylor and Francis Inc.
%V 51
%O cited By 6
%L scholars6682
%J Separation Science and Technology (Philadelphia)
%D 2016
%N 17
%R 10.1080/01496395.2016.1217241
%X A hybrid predictive model has been developed for accurate prediction of thermodynamics of carbon dioxide separation by aqueous alkanolamines. The model incorporates equation of state/excess Gibbs energy model into Kent�Eisenberg approach to predict carbon dioxide�alkanolamine�water equilibria. The approach imparts theoretical corrections to Kent�Eisenberg approach and significantly extends their range of application for monoethanolamine, diethanolamine, methyldiethanolamine, and 2-amino-2-methyl-1-propanol solutions. The proposed model suitably predicts thermodynamics of carbon dioxide separation, well beyond the regressed range of parameters. The results are in excellent agreement with experimental data for a wide range of process parameters and found superior to existing thermodynamic approaches. © 2016 Taylor & Francis.
%K Alkanolamines; Equations of state; Ethanolamines; Forecasting; Gibbs free energy; Separation; Thermodynamics, 2-amino-2-methyl-1-propanol; Accurate prediction; Aqueous alkanolamines; Carbon dioxide separation; Methyldiethanolamine; Predictive modeling; Thermodynamic approaches; Thermodynamic model, Carbon dioxide