ABSTRACT

In this study, the heat of absorption of CO2 in aqueous benzylamine (BZA), N-(2aminoethanolamine (AEEA) and their blends were measured using an automated reaction calorimeter in the temperature range of (303.15 to 343.15) K. The experimental concentrations of aqueous BZA, AEEA and their blends were in the range of (0.47 to 2.83) mol.kg-1, (0.48 to 2.91) mol.kg-1, (1.41mol BZA+1.45mol AEEA).kg-1 and (1.88mol BZA+0.97mol AEEA).kg-1 respectively. The heat capacity of the unloaded aqueous BZA, AEEA and (BZA+AEEA) systems were also measured in similar temperature and concentration ranges as for heat of absorption. The experimental heat of absorption of CO2 was presented as a function of CO2 loading, temperature and amine concentration.

Compounds

#	Formula	Name
1	C7H9N	benzylamine
2	C4H12N2O	N-(2-aminoethyl)ethanolamine
3	CO2	carbon dioxide
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	Constraint	Phase	Method	#Points
POMD	4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Closed cup calorimetry	5
POMD	3 1 4	Partial molar enthalpy, kJ/mol - 3 ; Liquid	Solvent: Molality, mol/kg - 1; Liquid Temperature, K; Liquid Mole fraction - 3; Liquid		Liquid Gas	isoperibol calorimeter	94
POMD	3 1 4	Mole fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 1; Liquid Pressure, kPa - 3; Gas		Liquid Gas	Phase equilibration	94
POMD	3 2 4	Partial molar enthalpy, kJ/mol - 3 ; Liquid	Solvent: Molality, mol/kg - 2; Liquid Temperature, K; Liquid Mole fraction - 3; Liquid		Liquid Gas	isoperibol calorimeter	108
POMD	3 2 4	Mole fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Molality, mol/kg - 2; Liquid Pressure, kPa - 3; Gas		Liquid Gas	Phase equilibration	109
POMD	1 4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Closed cup calorimetry	16
POMD	2 4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Closed cup calorimetry	16
POMD	1 2 4	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Closed cup calorimetry	6

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

Heat of Absorption of CO2 and Heat Capacity Measurements in Aqueous Solutions of Benzylamine, N-(2-Aminoethyl)-ethanolamine, and Their Blends Using a Reaction Calorimeter

Mukherjee, S.[Satyajit], Samanta, A. N.[Amar N.]

ABSTRACT