ABSTRACT

Vapor-liquid equilibria (VLE) for binary and ternary aqueous solutions of water, monoethanolamine (MEA), N-methyldiethanolamine (MDEA), and 3-(methylamino)propylamine (MAPA) were measured in a modified Swietoslawski ebulliometer at (40, 60, 80, and 100) deg C. Experimental temperature (T) and total pressure (P) were measured, and the compositions of both the liquid (x) and vapor (y) phases were analyzed. Boiling temperatures (Tb) of pure water and amines were measured over the pressure range of P = (2.5 to 101.3) kPa. Experimental activity coefficients (?) were calculated from the experimental P, T, x, and y data and were fit to the Wilson and NRTL equations.

Compounds

#	Formula	Name
1	C4H12N2	N-methyl-1,3-diaminopropane
2	C2H7NO	2-aminoethan-1-ol
3	C5H13NO2	N-methyldiethanolamine
4	H2O	water

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Phase	Method	#Points
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	11
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	16
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	7
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	56
POMD	2 4	Vapor or sublimation pressure, kPa ; Gas	Mole fraction - 2; Liquid Temperature, K; Gas	Gas Liquid	Ebulliometric method (Recirculating still)	87
POMD	2 4	Mole fraction - 2 ; Gas	Mole fraction - 2; Liquid Temperature, K; Gas	Gas Liquid	Titration method	87
POMD	3 4	Vapor or sublimation pressure, kPa ; Gas	Mole fraction - 3; Liquid Temperature, K; Gas	Gas Liquid	Ebulliometric method (Recirculating still)	61
POMD	3 4	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Temperature, K; Gas	Gas Liquid	Titration method	61
POMD	1 4	Vapor or sublimation pressure, kPa ; Gas	Mole fraction - 1; Liquid Temperature, K; Gas	Gas Liquid	Ebulliometric method (Recirculating still)	65
POMD	1 4	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Temperature, K; Gas	Gas Liquid	Titration method	65
POMD	3 2 4	Mole fraction - 3 ; Liquid Mole fraction - 3 ; Gas Mole fraction - 2 ; Gas	Temperature, K; Liquid Pressure, kPa; Liquid Mole fraction - 2; Liquid	Liquid Gas	Chromatography Chromatography Chromatography	12
POMD	3 1 4	Mole fraction - 3 ; Liquid Mole fraction - 3 ; Gas Mole fraction - 1 ; Gas	Temperature, K; Liquid Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid Gas	Chromatography Chromatography Chromatography	14

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Ebulliometric Determination of Vapor

Kim, I.[Inna], Svendsen, H. F.[Hallvard F.], Borresen, E.[Eli]

ABSTRACT