ABSTRACT

Densities of carbon dioxide loaded (partially carbonated), aqueous diethanolamine (DEA) solutions and aqueous methyldiethanolamine (MDEA) solutions are measured within a temperature range from (293.15 to 423.15) K. The series of DEA and MDEA aqueous solutions cover a range of amine mass ratios from (0.5 to 0.8) and a range of CO2 loading from (0 to 0.5) mol CO2*mol amine 1. All of the data points are compared with the predictions of the model from Weiland et al., and data regression is performed to fit selected parameters of the model. Predictions from the model fitted in this work are compared with the data measured in this work. The capability of the fitted model to predict the densities of the partially carbonated aqueous DEA and MDEA solutions with amine mass ratios different from what is used in this work is analyzed.

Compounds

#	Formula	Name
1	C4H11NO2	diethanolamine
2	CO2	carbon dioxide
3	H2O	water
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	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	14
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 1; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	56
POMD	4 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 4; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	56
POMD	1 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 2; Liquid Mass fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	326
POMD	1 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 2; Liquid Mass fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	219
POMD	4 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 2; Liquid Mass fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	218
POMD	4 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mass fraction - 2; Liquid Mass fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	174

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

Densities of Partially Carbonated Aqueous Diethanolamine and Methyldiethanolamine Solutions

Jayarathna, S. A.[Sanoja A.], Kottage, D.[Deshaka], Eimer, D. A.[Dag A.], Melaaen, M. C.[Morten C.]

ABSTRACT