Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase equilibria for the extraction of sec-butylbenzene from dodecane with N,N-dimethylformamide

Aljimaz, A. S.[Adel S.], Fandary, M. S.[Mohamed S.], Al-Kandary, J. A.[Jasem A.], Fahim, M. A.[Mohamed A.]
Fluid Phase Equilib. 2006, 240, 1, 79-86
ABSTRACT
The phase equilibria for the ternary system: dodecane + sec-butylbenzene + N,N-dimethylformamide (DMF) was studied over a temperature range of 288 318 K and at atmospheric pressure. Such a system is found in the extraction of aromatics in the middle distillate production. The system studied exhibits type I liquid liquid phase diagram. The values of distribution coefficients and selectivities were calculated from the equilibrium data. The effect of temperature and solute concentration in the feed upon solubility, distribution coefficient, and selectivity were investigated experimentally and theoretically. The experimental results of the studied system was regressed to estimate the interaction parameters between each of the three pairs of components with NRTL and UNIQUAC models as a function of temperature. Both models satisfactorily correlate the experimental data, and they are equally the same.
Compounds
# Formula Name
1 C12H26 dodecane
2 C10H14 (1-methylpropyl)benzene
3 C3H7NO dimethylformamide
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
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 1
  • Liquid mixture 2
  • CHROM:UFactor:16
  • 4
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • CHROM:UFactor:16
  • 4
  • POMD
  • 3
  • 1
  • 2
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 2 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 1
  • Temperature, K; Liquid mixture 1
  • Mole fraction - 2; Liquid mixture 2
  • Pressure, kPa; Liquid mixture 1
  • Liquid mixture 2
  • Liquid mixture 1
  • CHROM:UFactor:16
  • CHROM:UFactor:16
  • CHROM:UFactor:16
  • 44