Liquid liquid equilibrium data for mono ethylene glycol extraction from water with the new ionic liquid tetraoctyl ammonium 2-methyl-1-naphtoate as solvent
Garcia-Chavez, L. Y.[Lesly Y.], Schuur, B.[Boelo], Haan, A. B. d.[Andre B. de]
Thermal recovery of mono ethylene glycol (MEG) from aqueous streams is one of the most energy demanding operations in industry, because of the large amount of water that needs to be evaporated. The use of alternative technologies such as liquid liquid extraction could save energy. A new tailor made ionic liquid (IL), tetraoctyl ammonium 2-methy-1-naphtoate [TOA MNaph] was designed in a previous stage of our research on MEG recovery from aqueous streams (Garcia-Chavez et al., 2011) [3]. Here, we report the liquid liquid equilibrium data for the MEG + water + [TOA MNaph] system at atmospheric pressure for three different temperatures, (313.2, 333.2 and 353.2) K. The experimental equilibrium data was correlated using the NRTL and UNIQUAC thermodynamic models. Both models were able to describe the system adequately, root square mean deviations (RMSD) of 1.34% and 0.89% were obtained respectively.
Compounds
#
Formula
Name
1
H2O
water
2
C2H6O2
1,2-ethanediol
3
C44H77NO2
tetraoctylammonium 2-methyl-1-naphthoate
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.