DENSITY CALCULATIONS OF AQUEOUS AMINE SOLUTIONS USING AN EXCESS GIBBS BASED MODEL

Pinto, Diego D. D.; Knuutila, Hanna K.

doi:10.1590/0104-6632.20190363s20180588

Diego D. D. Pinto

Norwegian University of Science and Technology, Department of Chemical Engineering, Trondheim, Norway. E-mail: diego.pinto@hovyu.com

Hovyu B.V., Alphen aan den Rijn, Netherlands.

http://orcid.org/0000-0001-5381-1163

Hanna K. Knuutila

Norwegian University of Science and Technology, Department of Chemical Engineering, Trondheim, Norway. E-mail: diego.pinto@hovyu.com

http://orcid.org/0000-0003-2057-1743

* Corresponding author: Diego D. D. Pinto - E-mail: diego.pinto@hovyu.com

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Figure 1
Excess volume of MDEA as a function of mol fraction at: (O) 303.15 K, (□) 323.15 K and (Δ) 323.15. Experimental data from (Maham et al., 1995Maham, Y., Teng, T.T., Mather, A.E., Hepler, L.G. Volumetric properties of (water + diethanolamine) systems. Canadian Journal of Chemistry, 73, 1514-1519 (1995). http://dx.doi.org/10.1139/v95-187
http://dx.doi.org/10.1139/v95-187... ).

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Figure 2
Density of pure water at 101.325 kPa. (-) model, (o) Wagner and Pruß (2002Wagner, W., Pruÿ, A. The IAPWS formulation 1995 for the thermodynamic properties of ordinary water substance for general and scientific use. Journal of Physical and Chemical Reference Data, 31, 387-535 (2002). http://dx.doi.org/10.1063/1.1461829
http://dx.doi.org/10.1063/1.1461829... ).

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Figure 3
Density of pure MEA at different temperatures. Experimental data from: (o, Amundsen et al. (2009Amundsen, T.G., Øi, L.E., Eimer, D.A. Density and viscosity of monoethanolamine + water + carbon dioxide from (25 to 80) ◦ c. Journal of Chemical & Engineering Data , 54, 3096-3100 (2009). https://doi.org/10.1021/je900188m
https://doi.org/10.1021/je900188m... )), (?, Maham et al. (2002Maham, Y., Liew, C.N., Mather, A. Viscosities and excess properties of aqueous solutions of ethanolamines from 25 to 80ºC. Journal of Solution Chemistry , 31, 743-756 (2002). http://dx.doi.org/10.1023/A:1021133008053
http://dx.doi.org/10.1023/A:102113300805... )), (□, Hawrylak et al. (2000)) and (◊, Han et al. (2012bHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + monoethanolamine (2) + CO2 (3) from (298.15 to 413.15) K and surface tension of water (1) + monoethanolamine (2) from (303.15 to 333.15) K. Journal of Chemical & Engineering Data , 57, 1095-1103 (2012b). https://doi.org/10.1021/je2010038
https://doi.org/10.1021/je2010038... )). (-) model at 101.325 kPa.

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Figure 4
Density of pure MEA at different temperatures. Experimental data from: (o, Han et al. (2012bHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + monoethanolamine (2) + CO2 (3) from (298.15 to 413.15) K and surface tension of water (1) + monoethanolamine (2) from (303.15 to 333.15) K. Journal of Chemical & Engineering Data , 57, 1095-1103 (2012b). https://doi.org/10.1021/je2010038
https://doi.org/10.1021/je2010038... )). (-) model at 700 kPa.

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Figure 5
Density of pure water at different temperatures. Experimental data from: (o, Han et al. (2012bHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + monoethanolamine (2) + CO2 (3) from (298.15 to 413.15) K and surface tension of water (1) + monoethanolamine (2) from (303.15 to 333.15) K. Journal of Chemical & Engineering Data , 57, 1095-1103 (2012b). https://doi.org/10.1021/je2010038
https://doi.org/10.1021/je2010038... )). (-) model at 700 kPa.

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Figure 6
Density of aqueous MEA solution at different temperatures. Experimental data from: (o, Amundsen et al. (2009Amundsen, T.G., Øi, L.E., Eimer, D.A. Density and viscosity of monoethanolamine + water + carbon dioxide from (25 to 80) ◦ c. Journal of Chemical & Engineering Data , 54, 3096-3100 (2009). https://doi.org/10.1021/je900188m
https://doi.org/10.1021/je900188m... )), (◃, Han et al. (2012bHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + monoethanolamine (2) + CO2 (3) from (298.15 to 413.15) K and surface tension of water (1) + monoethanolamine (2) from (303.15 to 333.15) K. Journal of Chemical & Engineering Data , 57, 1095-1103 (2012b). https://doi.org/10.1021/je2010038
https://doi.org/10.1021/je2010038... )), (□, Hawrylak et al. (2000)), (◊, Li and Lie (1994Li, M.H., Lie, Y.C. Densities and viscosities of solutions of monoethanolamine + n-methyldiethanolamine + water and monoethanolamine + 2-amino-2-methyl-1-propanol + water. Journal of Chemical & Engineering Data , 39, 444-447 (1994). https://doi.org/10.1021/je00015a009
https://doi.org/10.1021/je00015a009... )). Model at 101.325 kPa and (-, blue) 298.15 K, (-, green) 313.15 K and (-, red) 333.15 K.

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Figure 7
Density of aqueous MEA solution at different temperatures. Experimental data from: (o, Han et al. (2012bHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + monoethanolamine (2) + CO2 (3) from (298.15 to 413.15) K and surface tension of water (1) + monoethanolamine (2) from (303.15 to 333.15) K. Journal of Chemical & Engineering Data , 57, 1095-1103 (2012b). https://doi.org/10.1021/je2010038
https://doi.org/10.1021/je2010038... )). Model at 700 kPa and (-, blue) 373.15 K, (-, green) 403.15 K and (-, red) 423.15 K.

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Figure 8
Density of pure MDEA at different temperatures. Experimental data from: (o, Maham et al. (1995Maham, Y., Teng, T.T., Mather, A.E., Hepler, L.G. Volumetric properties of (water + diethanolamine) systems. Canadian Journal of Chemistry, 73, 1514-1519 (1995). http://dx.doi.org/10.1139/v95-187
http://dx.doi.org/10.1139/v95-187... )), (?, Hawrylak et al. (2000)), (□, Pinto et al. (2014bPinto, D.D., Monteiro, J.G.S., Johnsen, B., Svendsen, H.F., Knuutila, H. Density measurements and modelling of loaded and unloaded aqueous solutions of MDEA (N-methyldiethanolamine), DMEA (N,N-dimethylethanolamine), DEEA (diethylethanolamine) and MAPA (N-methyl-1,3-diaminopropane). International Journal of Greenhouse Gas Control , 25, 173-185 (2014b). http://dx.doi.org/10.1016/j.ijggc.2014.04.017
http://dx.doi.org/10.1016/j.ijggc.2014.0... )), (◊, Han et al. (2012aHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + diethanolamine (2) + CO2 (3) and water (1) + n-methyldiethanolamine (2) + CO2 (3) from (298.15 to 423.15) K. Journal of Chemical & Engineering Data , 57, 1843-1850 (2012a). https://doi.org/10.1021/je300345m
https://doi.org/10.1021/je300345m... )) and (◃, Chowdhury et al. (2009Chowdhury, F.I., Akhtar, S., Saleh, M.A. Densities and excess molar volumes of aqueous solutions of some diethanolamines. Physics and Chemistry of Liquids, 47, 638-652 (2009). https://doi.org/10.1080/00319100802620538
https://doi.org/10.1080/0031910080262053... )). (-) model at 101.325 kPa.

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Figure 9
Density of pure MDEA at different temperatures. Experimental data from: (o, Han et al. (2012aHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + diethanolamine (2) + CO2 (3) and water (1) + n-methyldiethanolamine (2) + CO2 (3) from (298.15 to 423.15) K. Journal of Chemical & Engineering Data , 57, 1843-1850 (2012a). https://doi.org/10.1021/je300345m
https://doi.org/10.1021/je300345m... )) and (-) model at 700 kPa.

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Figure 10
Density of aqueous MDEA solution at different temperatures. Experimental data from: (o, Li and Lie (1994Li, M.H., Lie, Y.C. Densities and viscosities of solutions of monoethanolamine + n-methyldiethanolamine + water and monoethanolamine + 2-amino-2-methyl-1-propanol + water. Journal of Chemical & Engineering Data , 39, 444-447 (1994). https://doi.org/10.1021/je00015a009
https://doi.org/10.1021/je00015a009... )), (?, Maham et al. (1995Maham, Y., Teng, T.T., Mather, A.E., Hepler, L.G. Volumetric properties of (water + diethanolamine) systems. Canadian Journal of Chemistry, 73, 1514-1519 (1995). http://dx.doi.org/10.1139/v95-187
http://dx.doi.org/10.1139/v95-187... )), (◊, Pinto et al. (2014bPinto, D.D., Monteiro, J.G.S., Johnsen, B., Svendsen, H.F., Knuutila, H. Density measurements and modelling of loaded and unloaded aqueous solutions of MDEA (N-methyldiethanolamine), DMEA (N,N-dimethylethanolamine), DEEA (diethylethanolamine) and MAPA (N-methyl-1,3-diaminopropane). International Journal of Greenhouse Gas Control , 25, 173-185 (2014b). http://dx.doi.org/10.1016/j.ijggc.2014.04.017
http://dx.doi.org/10.1016/j.ijggc.2014.0... )), (◃, Han et al. (2012aHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + diethanolamine (2) + CO2 (3) and water (1) + n-methyldiethanolamine (2) + CO2 (3) from (298.15 to 423.15) K. Journal of Chemical & Engineering Data , 57, 1843-1850 (2012a). https://doi.org/10.1021/je300345m
https://doi.org/10.1021/je300345m... )) and (∗, Chowdhury et al. (2009Chowdhury, F.I., Akhtar, S., Saleh, M.A. Densities and excess molar volumes of aqueous solutions of some diethanolamines. Physics and Chemistry of Liquids, 47, 638-652 (2009). https://doi.org/10.1080/00319100802620538
https://doi.org/10.1080/0031910080262053... )). Model at 101.325 kPa and: (-, blue) 303.15 K, (-, green) 313.15 K and (-, red) 333.15 K.

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Figure 11
Density of aqueous MDEA solution at different temperatures. Experimental data from: (o, Han et al. (2012aHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + diethanolamine (2) + CO2 (3) and water (1) + n-methyldiethanolamine (2) + CO2 (3) from (298.15 to 423.15) K. Journal of Chemical & Engineering Data , 57, 1843-1850 (2012a). https://doi.org/10.1021/je300345m
https://doi.org/10.1021/je300345m... )). Model at 700 kPa and: (-, blue) 373.15 K, (-, green) 403.15 K and (-, red) 423.15 K.

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Figure 12
Density of pure AMP at different temperatures. Experimental data from: (o, Henni et al. (2003Henni, A., Hromek, J.J., Tontiwachwuthikul, P., Chakma, A. Volumetric properties and viscosities for aqueous amp solutions from 25 ºC to 70 ºC. Journal of Chemical & Engineering Data , 48, 551-556 (2003). https://doi.org/10.1021/je0201119
https://doi.org/10.1021/je0201119... )), (?, Xu et al. (1991Xu, S., Otto, F.D., Mather, A.E. Physical properties of aqueous AMP solutions. ournal of Chemical & Engineering Data , 36, 71-75 (1991). http://dx.doi.org/10.1021/je00001a021
http://dx.doi.org/10.1021/je00001a021... )), (□, Chan et al. (2002Chan, C., Maham, Y., Mather, A., Mathonat, C. Densities and volumetric properties of the aqueous solutions of 2-amino-2-methyl-1-propanol, n-butyldiethanolamine and n-propylethanolamine at temperatures from 298.15 to 353.15 K. Fluid Phase Equilibria, 198, 239-250 (2002). https://doi.org/10.1016/S0378-3812(01)00768-3
https://doi.org/10.1016/S0378-3812(01)00... )), (◊, Han et al. (2012aHan, J., Jin, J., Eimer, D.A., Melaaen, M.C. Density of water (1) + diethanolamine (2) + CO2 (3) and water (1) + n-methyldiethanolamine (2) + CO2 (3) from (298.15 to 423.15) K. Journal of Chemical & Engineering Data , 57, 1843-1850 (2012a). https://doi.org/10.1021/je300345m
https://doi.org/10.1021/je300345m... )) and (◃, Chowdhury et al. (2009Chowdhury, F.I., Akhtar, S., Saleh, M.A. Densities and excess molar volumes of aqueous solutions of some diethanolamines. Physics and Chemistry of Liquids, 47, 638-652 (2009). https://doi.org/10.1080/00319100802620538
https://doi.org/10.1080/0031910080262053... )). () model at 101.325 kPa.

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Figure 13
Density of aqueous AMP solution at different temperatures. Experimental data from: (o, Henni et al. (2003Henni, A., Hromek, J.J., Tontiwachwuthikul, P., Chakma, A. Volumetric properties and viscosities for aqueous amp solutions from 25 ºC to 70 ºC. Journal of Chemical & Engineering Data , 48, 551-556 (2003). https://doi.org/10.1021/je0201119
https://doi.org/10.1021/je0201119... )) and (□, Chan et al. (2002Chan, C., Maham, Y., Mather, A., Mathonat, C. Densities and volumetric properties of the aqueous solutions of 2-amino-2-methyl-1-propanol, n-butyldiethanolamine and n-propylethanolamine at temperatures from 298.15 to 353.15 K. Fluid Phase Equilibria, 198, 239-250 (2002). https://doi.org/10.1016/S0378-3812(01)00768-3
https://doi.org/10.1016/S0378-3812(01)00... )). Model at 101.325 kPa and:(-, blue) 298.15 K, (-, green) 323.15 K and (-, red) 343.15 K.

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Figure 14
Density of pure DEA at different temperatures. Experimental data from: (o, Chowdhury et al. (2009Chowdhury, F.I., Akhtar, S., Saleh, M.A. Densities and excess molar volumes of aqueous solutions of some diethanolamines. Physics and Chemistry of Liquids, 47, 638-652 (2009). https://doi.org/10.1080/00319100802620538
https://doi.org/10.1080/0031910080262053... )), (?, Hawrylak et al. (2000)), (□, Maham et al. (1994Maham, Y., Teng, T.T., Hepler, L.G., Mather, A.E. Densities, excess molar volumes, and partial molar volumes for binary mixtures of water with monoethanolamine, diethanolamine, and triethanolamine from 25 to 80ºC. Journal of Solution Chemistry , 23, 195-205 (1994). http://dx.doi.org/10.1007/BF00973546
http://dx.doi.org/10.1007/BF00973546... )) and (◊, Yang et al. (2012Yang, F., Wang, X., Liu, Z. Volumetric properties of binary and ternary mixtures of bis(2-hydroxyethyl)amine with water, methanol, ethanol from (278.15 to 353.15) K. Thermochimica Acta , 533, 1-9 (2012). https://doi.org/10.1016/j.tca.2012.01.007
https://doi.org/10.1016/j.tca.2012.01.00... )). (-) model at 101.325 kPa.

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Figure 15
Density of aqueous DEA solution at different temperatures. Experimental data from: (o, Chowdhury et al. (2009Chowdhury, F.I., Akhtar, S., Saleh, M.A. Densities and excess molar volumes of aqueous solutions of some diethanolamines. Physics and Chemistry of Liquids, 47, 638-652 (2009). https://doi.org/10.1080/00319100802620538
https://doi.org/10.1080/0031910080262053... )), (□, Maham et al. (1994Maham, Y., Teng, T.T., Hepler, L.G., Mather, A.E. Densities, excess molar volumes, and partial molar volumes for binary mixtures of water with monoethanolamine, diethanolamine, and triethanolamine from 25 to 80ºC. Journal of Solution Chemistry , 23, 195-205 (1994). http://dx.doi.org/10.1007/BF00973546
http://dx.doi.org/10.1007/BF00973546... )) and (◊, Yang et al. (2012Yang, F., Wang, X., Liu, Z. Volumetric properties of binary and ternary mixtures of bis(2-hydroxyethyl)amine with water, methanol, ethanol from (278.15 to 353.15) K. Thermochimica Acta , 533, 1-9 (2012). https://doi.org/10.1016/j.tca.2012.01.007
https://doi.org/10.1016/j.tca.2012.01.00... )). Model at 101.325 kPa and: (-, blue) 303.15 K, (-, green) 323.15 K and (-, red) 343.15 K.

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Figure 16
Density of aqueous PZ solution at different temperatures. Experimental data from: (o, Samanta and Bandyopadhyay (2006Samanta, A., Bandyopadhyay, S.S. Density and viscosity of aqueous solutions of piperazine and (2-amino-2-methyl-1-propanol + piperazine) from 298 to 333 K. Journal of Chemical & Engineering Data , 51, 467-470 (2006). http://dx.doi.org/10.1021/je050378i
http://dx.doi.org/10.1021/je050378i... )), (□, Sun et al. (2005Sun, W.C., Yong, C.B., Li, M.H. Kinetics of the absorption of carbon dioxide into mixed aqueous solutions of 2-amino-2-methyl-l-propanol and piperazine. Chemical Engineering Science , 60, 503-516 (2005). https://doi.org/10.1016/j.ces.2004.08.012
https://doi.org/10.1016/j.ces.2004.08.01... )), (?, Derks et al. (2005Derks, P.W., Hogendoorn, K.J., Versteeg, G.F. Solubility of N2O in and density, viscosity, and surface tension of aqueous piperazine solutions. Journal of Chemical & Engineering Data , 50, 1947-1950 (2005). https://doi.org/10.1021/je050202g
https://doi.org/10.1021/je050202g... )) and (◊, Muhammad et al. (2009Muhammad, A., Mutalib, M.I.A., Murugesan, T., Shafeeq, A. Thermophysical properties of aqueous piperazine and aqueous (N-methyldiethanolamine + piperazine) solutions at temperatures (298.15 to 338.15) K. Journal of Chemical & Engineering Data, 54, 2317-2321 (2009). http://dx.doi.org/10.1021/je9000069
http://dx.doi.org/10.1021/je9000069... )). Model at 101.325 kPa and: (-, blue) 303.15 K, (-, green) 323.15 K and (-, red) 333.15 K.

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Figure 17
Density parity plot of aqueous MEA-MDEA solution at different temperatures and concentrations. Experimental data from: (o, Li and Lie (1994Li, M.H., Lie, Y.C. Densities and viscosities of solutions of monoethanolamine + n-methyldiethanolamine + water and monoethanolamine + 2-amino-2-methyl-1-propanol + water. Journal of Chemical & Engineering Data , 39, 444-447 (1994). https://doi.org/10.1021/je00015a009
https://doi.org/10.1021/je00015a009... )), (□, Hagewiesche et al. (1995Hagewiesche, D.P., Ashour, S.S., Sandall, O.C. Solubility and diffusivity of nitrous oxide in ternary mixtures of water, monoethanolamine and N-methyldiethanolamine and solution densities and viscosities. Journal of Chemical & Engineering Data , 40, 627-629 (1995). https://doi.org/10.1021/je00019a020
https://doi.org/10.1021/je00019a020... )), (5, Li and Shen (1992)Li, M.H., Shen, K.P. Densities and solubilities of solutions of carbon dioxide in water + monoethanolamine + n-methyldiethanolamine. Journal of Chemical & Engineering Data , 37, 288-290 (1992). https://doi.org/10.1021/je00007a002
https://doi.org/10.1021/je00007a002... ) and (◊, Hsu and Li (1997Hsu, C.H., Li, M.H. Densities of aqueous blended amines. Journal of Chemical & Engineering Data , 42, 502-507 (1997). https://doi.org/10.1021/je960356j
https://doi.org/10.1021/je960356j... )).

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Figure 18
Density parity plot of aqueous MDEA-PZ solution at different temperatures and concentrations. Experimental data from: (o, Paul and Mandal (2006Paul, S., Mandal, B. Density and viscosity of aqueous solutions of (N-methyldiethanolamine + piperazine) and (2-amino-2-methyl-1-propanol + piperazine) from (288 to 333) K. Journal of Chemical & Engineering Data , 51, 1808-1810 (2006). http://dx.doi.org/10.1021/je060195b
http://dx.doi.org/10.1021/je060195b... )), (?, Muhammad et al. (2009Muhammad, A., Mutalib, M.I.A., Murugesan, T., Shafeeq, A. Thermophysical properties of aqueous piperazine and aqueous (N-methyldiethanolamine + piperazine) solutions at temperatures (298.15 to 338.15) K. Journal of Chemical & Engineering Data, 54, 2317-2321 (2009). http://dx.doi.org/10.1021/je9000069
http://dx.doi.org/10.1021/je9000069... )).

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Table 1
Studied components and its respective properties (Yaws, 2012Yaws. Yaws’ Critical Property Data for Chemical Engineers and Chemists. Knovel (2012).).

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Table 2
Modified Rackett parameters for calculating pure component density (ρ in g/ml, T in K and p in MPa).

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Table 3
Calculated deviations for pure component density.

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Table 4
Optimized parameters for calculating densities in aqueous systems.

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Table 5
Calculated deviations for aqueous amine system density.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

(15)

(16)

(17)

(18)

(19)

(20)

Component	CAS	MW (g/mol)	p_c (MPa)	T_c (K)
H₂O	7732-18-5	18.02	22.064	647.10
MEA	141-43-5	61.08	8.03	671.40
MDEA	105-59-9	119.16	3.88	675.00
AMP	124-68-5	89.14	4.14	571.82
DEA	111-42-2	105.14	4.27	736.60
PZ	110-85-0	86.14	5.53	638.00

Component	A	B	C
H₂O	-1.4937	6.6495E-06	-9.868E-02
MEA	-1.3383	1.5740E-05	-1.572E-02
MDEA	-1.3997	6.0751E-05	-3.240E-02
AMP	0.1279	-3.7692E-02	-6.1425E-02
DEA	-3.0305	3.6589E-02	-4.1276E-02
PZ^a	-1.1301	0	0

Component	AARD (%)	AAD (kg/m³)	MAD (kg/m³)	Source
H₂O	0.346	3.044	15.821	Wagner and Pruß (2002)
MEA	0.015	0.152	0.209	Amundsen et al. (2009)
	0.085	0.871	1.310	Maham et al. (2002)
	0.076	0.761	1.647	Hawrylak et al. (2000)
	0.047	0.457	1.139	Han et al. (2012b)
	0.047	0.464	1.647	Total
MDEA	0.092	0.950	1.358	Hawrylak et al. (2000)
	0.052	0.523	0.873	Maham et al. (1995)
	0.033	0.336	0.859	Pinto et al. (2014b)
	0.062	0.601	2.453	Han et al. (2012a)
	0.028	0.294	0.715	Chowdhury et al. (2009)
	0.054	0.542	2.453	Total
AMP	0.052	0.468	0.615	Henni et al. (2003)
	0.050	0.453	0.834	Xu et al. (1991)
	0.047	0.426	0.515	Chan et al. (2002)
	0.050	0.450	0.834	Total
DEA	0.036	0.387	1.065	Hawrylak et al. (2000)
	0.020	0.212	0.341	Chowdhury et al. (2009)
	0.020	0.219	0.361	Maham et al. (1994)
	0.018	0.191	0.530	Yang et al. (2012)
	0.022	0.234	1.065	Total

i	j	a_ij	a_ji	b_ij	b_ji	α_ij = α_ji
H₂O	MEA	-0.0565	0.0575	-0.3610	-0.04512	0.2
H₂O	MDEA	-0.5022	0.5313	-26.5001	28.2631	0.1
H₂O	AMP	-0.2824	0.2821	-95.0253	105.9925	0.1
H₂O	PZ	-0.0056	109.0230	-3.2495	-21495.84	0.3
H₂O	DEA	-0.1475	0.1533	-21.7881	24.3958	0.3
MEA	MDEA	-0.2797	0.2421	-2.0375	21.2321	0.3
MDEA	PZ	25.5927	-0.4141	-2917.5751	-217.7676	0.2

System	AARD (%)	AAD (kg/m³)	MAD (kg/m³)	Source
H₂O-MEA	0.086	0.866	2.594	Amundsen et al. (2009)
	0.176	1.788	4.138	Maham et al. (2002)
	0.109	1.102	9.281	Hawrylak et al. (2000)
	0.087	0.869	1.957	Li and Lie (1994)
	0.082	0.805	2.124	Han et al. (2012b)
	0.102	1.023	9.281	Total
H₂O-MDEA	0.110	1.134	10.499	Hawrylak et al. (2000)
	0.056	0.564	1.000	Li and Lie (1994)
	0.084	0.857	8.669	Maham et al. (1995)
	0.063	0.643	2.246	Pinto et al. (2014b)
	0.123	1.223	3.590	Han et al. (2012a)
	0.050	0.519	1.383	Chowdhury et al. (2009)
	0.093	0.941	10.499	Total
H₂O-AMP	0.076	0.728	1.802	Henni et al. (2003)
	0.114	1.092	3.284	Xu et al. (1991)
	0.078	0.752	2.079	Chan et al. (2002)
	0.084	0.806	3.284	Total
H₂O-PZ	0.053	0.526	1.277	Samanta and Bandyopadhyay (2006)
	0.066	0.659	1.522	Derks et al. (2005)
	0.036	0.357	0.784	Sun et al. (2005)
	0.077	0.761	1.669	Muhammad et al. (2009)
	0.060	0.602	1.669	Total
H₂O-DEA	0.040	0.426	1.577	Hawrylak et al. (2000)
	0.074	0.786	1.494	Chowdhury et al. (2009)
	0.045	0.469	1.723	Maham et al. (1994)
	0.050	0.525	3.084	Yang et al. (2012)
	0.050	0.530	3.084	Total
H₂O-MEA-MDEA	0.062	0.617	1.957	Li and Lie (1994)
	0.033	0.326	0.975	Li and Shen (1992)
	0.091	0.924	1.864	Hagewiesche et al. (1995)
	0.050	0.502	1.232	Hsu and Li (1997)
	0.056	0.561	1.957	Total
H₂O-MDEA-PZ	0.205	2.089	6.799	Paul and Mandal (2006)
	0.184	1.889	4.714	Muhammad et al. (2009)
	0.193	1.974	6.799	Total

[1] * Corresponding author: Diego D. D. Pinto - E-mail: diego.pinto@hovyu.com

Brasil

Brasil

DENSITY CALCULATIONS OF AQUEOUS AMINE SOLUTIONS USING AN EXCESS GIBBS BASED MODEL

Abstract