Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase behavior of glycol ether surfactant systems in the presence of brine and hydrocarbon: Experiment and modeling

Khoshsima, A.[Ali], Dehghani, M. R.[Mohammad Reza]
Fluid Phase Equilib. 2016, 414, 101-110
ABSTRACT
In this study, liquid-liquid equilibrium measurements were performed for the ternary (water/non-ionic surfactant/decane) systems at T = 298.15 K and atmospheric pressure. Propylene glycol mono propyl ether and ethylene glycol monobutyl ether were selected as surfactant; the first one is propylene glycol ether, while the second one is ethylene glycol ether. New experimental liquideliquid equilibrium data were presented for the corresponding systems. Effect of salinity and surfactant structure (EO or PO functional group) on the phase behavior of such systems has been studied by both experimental measurements and thermodynamic modeling. The experimental phase behavior data were predicted by the perturbed hard sphere chain (PHSC) equation of state. In the presence of electrolyte, mean spherical approximation (MSA) term has been coupled with the PHSC EoS to account the contribution of longrange interactions. The calculated results indicate acceptable qualitative agreement of PHSC results with the experimental data.
Compounds
# Formula Name
1 C10H22 decane
2 C6H14O2 1-propoxy-2-propanol
3 C6H14O2 2-butoxyethan-1-ol
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
  • 1
  • 2
  • 4
  • Mole fraction - 4 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 8
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 3 ; Liquid mixture 2
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 4 ; Liquid mixture 1
  • Mole fraction - 4; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • Chromatography
  • Chromatography
  • 6
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 4 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 3
  • Liquid mixture 2
  • Chromatography
  • 1
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 4 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 3
  • Liquid mixture 1
  • Chromatography
  • 1
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 3 ; Liquid mixture 3
  • Temperature, K; Liquid mixture 3
  • Pressure, kPa; Liquid mixture 3
  • Liquid mixture 3
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • 1
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 1 ; Liquid mixture 3
  • Temperature, K; Liquid mixture 3
  • Pressure, kPa; Liquid mixture 3
  • Liquid mixture 3
  • Liquid mixture 2
  • Liquid mixture 1
  • Chromatography
  • 1
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 3 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 3
  • Liquid mixture 2
  • Chromatography
  • 1
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 2
  • Liquid mixture 3
  • Liquid mixture 1
  • Chromatography
  • 1