Interfacial Properties for MEA and MEA-Water Mixtures

Abstract:

The perturbed-chain statistical associating fluid theory (PC-SAFT) and density-gradient theory (DGT) were used to construct an equation of state (EOS) for the bulk and interfacial properties of monoethanolamine (MEA) and its aqueous solutions. The molecular parameters and influence parameter were regressed by fitting the experimental data of phase equilibria and surface tensions. With the molecular parameters and influence parameter as input, the surface tensions of MEA aqueous solutions were correlated satisfactorily.

• Periodical: Advanced Materials Research (Volumes 765-767)
• Pages: 3166-3169
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.765-767.3166
• Online since: September 2013
• Authors: Lin Wei, Hui Min Hao, Lin Feng, Dong Fu
• Keywords: Density-Gradient Theory, Monoethanolamine, Perturbed-Chain Statistical Associating Fluid Theory, Phase Equilibria, Surface Tension

References

[1] Nahicenovic N; John A. CO2 reduction and removal: measures for the next century. Energy, 1991, 16: 1347-1377.

DOI: 10.1016/0360-5442(91)90007-9

[2] Kralj AK, Glavic P. CO2 separation from purge gas and flue gas in the methanol process, using NLP model optimization. Ind Eng Chem Res, 2007, 46: 6953-6962.

DOI: 10.1021/ie0702173

[3] Shen KP, Li MH. Solubility of carbon dioxide in aqueous mixtures of monoethanolamine with methyldiethanolamine. J Chem Eng Data, 1992, 37: 96-100.

DOI: 10.1021/je00005a025

[4] Kundu M, Bandyopadhyay SS. Solubility of CO2 in water + diethanolamine + N-methyldiethanolamine. Fluid Phase Equilib, 2006, 248: 158-167.

DOI: 10.1016/j.fluid.2006.08.001

[5] Barreau A, Blanchon le Bouhelec E, Habchi Tounsi KN, Mougin P, Lecomte F. Absorption of H2S and CO2 in alkanolamine aqueous solution: experimental data and modelling with the electrolyte-NRTL model. Oil & Gas Sci Tech, 2006, 61: 345-361.

DOI: 10.2516/ogst:2006038a

[6] Vazquez G, Alvarez E, Navaza J M , Rendo R , Romero E. Surface tension of binary mixtures of water + monoethanolamine and water + 2-amino-2- methyl-1-propanol and tertiary mixtures of these amines with water from 25 to 50℃ [J]. J．Chem．Eng．Data 1997, 42 (1), 57-59.

DOI: 10.1021/je960238w

[7] Smith, B. D.; Srivastava, R. Thermodynamic data for pure components, Elsevier, Amsterdam, (1986).

[8] Venkat A, Kumar G, Kundu M. Density and Surface Tension of Aqueous Solutions of (2-(Methylamino)-ethanol +2-Amino-2-methyl- 1-propanol) and (2-(Methylamino)-ethanol + N-Methyl-diethanolamine) from (298. 15 to 323. 15) K. J. Chem. Eng. Data, 2010, 55 (11), 4580-4585.

DOI: 10.1021/je1002626

[9] Gross, J.; Sadowski, G. Application of the perturbed-chain SAFT equation of state to associating systems. Ind. Eng. Chem. Res. 2002, 41, 5510-5515.

DOI: 10.1021/ie010954d

[10] Fu D. Investigation of surface tensions for pure associating fluids by PC-SAFT combined with density-gradient theory. Ind. Eng. Chem. Res. 2007, 46(22), 7378-7383.

DOI: 10.1021/ie070906e

[11] Cahn, J. W., Hilliard, J. E., Free energy of a nonuniform system. I. Interfacial free energy. J. Chem. Phys., 1958, 28, 258-267.

DOI: 10.1063/1.1744102

[12] Kim I, Svendsen H F, Børresen E L. Ebulliometric Determination of Vapor-Liquid Equilibria for Pure Water, Monoethanolamine, N-Methyldiethanolamine, 3-(Methylamino)-propylamine, and Their Binary and Ternary Solutions. J. Chem. Eng. Data, 2008, 53(11), 2521-2531.

DOI: 10.1021/je800290k