The absorption of carbon dioxide in aqueous solutions of piperazine (PZ) in a high pressure Jerguson cell was studied at high gas loadings (1.06 2.77) molCO2/molPZ. Because of its cyclic and diamine characteristics, the reactivity and solubility of piperazine are higher than in other secondary amines. The solubility of CO2 in aqueous solutions of piperazine was measured at (313 and 343)K for (0.3 and 1.2)Mpiperazine up to a pressure of 7400 kPa. The Electrolyte-NRTL model was used to correlate the solubility of CO2 in aqueous solutions of piperazine. Eight adjustable ionic pair interaction parameters were estimated allowing for the correlation of the available experimental solubility data with an average deviation of 1 2% in CO2 partial pressure. The model was tested by predicting published experimental literature data for both low and high gas loadings.
Compounds
#
Formula
Name
1
CO2
carbon dioxide
2
C2H7NO
2-aminoethan-1-ol
3
H2O
water
4
C4H10N2
piperazine
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.