In this work, a new experimental data of CO2 solubility in aqueous solution of Hexamethylenediamine (HMDA) have been generated at 30, 40, 50 and 60oC in the CO2 partial pressure range of 1-100kPa. Concentration of aqueous HMDA used for solubility measurement ranges from 10 to 30 mass%. Electrolyte Non-Random Two Liquid (ENRTL) theory is used to correlate and predict vapor-liquid equilibrium (VLE) data. Model predicted data show good agreement with the experimental VLE data with an average absolute deviation of 11.0%. The ENRTL parameters are regressed from the experimental data of CO2 solubility using the data regression system (DRS) of Aspen Plus (V 7.3).The ENRTL model is also used to predict equilibrium liquid phase speciation, solvent capacity, pH of the solution and heat of absorption of CO2 in aqueous HMDA solution.
Compounds
#
Formula
Name
1
C6H16N2
1,6-hexanediamine
2
C2H7NO
2-aminoethan-1-ol
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.