ABSTRACT

Densities in liquid solutions of water + diethanolamine (DEA) and water + N-methyldiethanolamine (MDEA) have been measured at temperatures from (298.15 to 423.15) K. The mass fraction of amine ranged from 0.3 to 1.0. Excess molar volumes of the binary system were derived and correlated by a fourth order Redlich Kister equation and a second polynomial function with respect to the temperature. Densities in liquid solutions of water + DEA + CO2 and water + MDEA + CO2 have been measured at temperatures from (298.15 to 423.15) K. The mass fraction of amine in water was 0.3 and 0.4. The CO2 loading ranged from 0.1 to 0.5. Molar volumes of the ternary system were correlated by the equation from Weiland et al. at each temperature. The parameters were in turn fitted by a polynomial function of the temperature.

Compounds

#	Formula	Name
1	H2O	water
2	CO2	carbon dioxide
3	C4H11NO2	diethanolamine
4	C5H13NO2	N-methyldiethanolamine

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	Constraint	Phase	Method	#Points
POMD	3	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	20
POMD	4	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	20
POMD	3 1	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Mole fraction - 3; Liquid		Liquid	Vibrating tube method	180
POMD	4 1	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Mole fraction - 4; Liquid		Liquid	Vibrating tube method	180
POMD	4 2 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	63
POMD	4 2 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	45
POMD	3 2 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	70
POMD	3 2 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	50

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

Density of Water (1) + Diethanolamine (2) + CO2 (3) and Water (1) + N-Methyldiethanolamine (2) + CO2 (3) from (298.15 to 423.15) K

Han, J.[Jingyi], Jin, J.[Jing], Eimer, D. A.[Dag A.], Melaaen, M. C.[Morten C.]

ABSTRACT