<abstract xmlns="http://www.w3.org/1999/xhtml">In this research, thermodynamic and absorption rate of carbon dioxide in monoethanolamine (MEA) solution was investigated. A correlation based on both liquid and a gas phase variable for carbon dioxide absorption rate was presented using the π-Buckingham theorem. The correlation was constructed based on dimensionless numbers, including carbon dioxide loading, carbon dioxide partial pressure, film parameter and the ratio of liquid phase film thickness and gas phase film thickness. The film parameter is used to apply the effect of chemical reactions on absorption rate. A thermodynamic model based on the extended-UNIQUAC equations for the activity coefficients coupled with the Virial equation of state for representing the non-ideality of the vapor phase was used to predict the CO2 solubility in the CO2-MEA-H2O system. The average absolute error of the results for the correlation was 6.4%, which indicates the accuracy of the proposed correlation.</abstract>

In this research, thermodynamic and absorption rate of carbon dioxide in monoethanolamine (MEA) solution was investigated. A correlation based on both liquid and a gas phase variable for carbon dioxide absorption rate was presented using the π-Buckingham theorem. The correlation was constructed based on dimensionless numbers, including carbon dioxide loading, carbon dioxide partial pressure, film parameter and the ratio of liquid phase film thickness and gas phase film thickness. The film parameter is used to apply the effect of chemical reactions on absorption rate. A thermodynamic model based on the extended-UNIQUAC equations for the activity coefficients coupled with the Virial equation of state for representing the non-ideality of the vapor phase was used to predict the CO2 solubility in the CO2-MEA-H2O system. The average absolute error of the results for the correlation was 6.4%, which indicates the accuracy of the proposed correlation.

Mass transfer and thermodynamic modeling of carbon dioxide absorption into MEA aqueous solution

Iran University of Science and Technology

Department of Chemical, Oil and Gas Engineering

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In this research, thermodynamic and absorption rate of carbon dioxide in monoethanolamine (MEA) solution was investigated. A correlation based on both liquid...

Mass transfer and thermodynamic modeling of carbon dioxide absorption into MEA aqueous solution

Published Online: Oct 10, 2017

Page range: 75 - 82

DOI: https://doi.org/10.1515/pjct-2017-0052

Keywords
modeling, CO, absorption rate, extended UNIQUAC, MEA solution

© 2017 Ahad Ghaemi, published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mass transfer and thermodynamic modeling of carbon dioxide absorption into MEA aqueous solution

Published Online: Oct 10, 2017

Page range: 75 - 82

DOI: https://doi.org/10.1515/pjct-2017-0052

Keywordsmodeling, CO, absorption rate, extended UNIQUAC, MEA solution

© 2017 Ahad Ghaemi, published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
modeling, CO, absorption rate, extended UNIQUAC, MEA solution