Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Cosolvent Effect of Methanol and Acetic Acid on Dibenzofuran Solubility in Supercritical Carbon Dioxide

Perez, E.[Eduardo], Cabanas, A.[Albertina], Renuncio, J. A. R.[Juan A. R.], Sanchez-Vicente, Y.[Yolanda], Pando, C.[Concepcion]
J. Chem. Eng. Data 2008, 53, 11, 2649-2653
ABSTRACT
The experimental solubility of dibenzofuran in modified supercritical carbon dioxide is measured at (318.2, 328.2, and 338.2) K in the (9 to 21) MPa pressure range using a built-in-house static view cell apparatus. CO2 is modified using methanol and acetic acid in the composition range of (3.5 to 5.5) mol %. Results are compared with those previously obtained for pure carbon dioxide, and the modifier effect is discussed. Solubility data obtained are correlated at each of the temperatures studied. The correlation equations may be used to predict the dibenzofuran solubility in methanol or acetic-acid-modified CO2 within the composition and pressure intervals studied or at values close to the interval limits. Results show the feasibility of using modified supercritical CO2 to extract dibenzofuran.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C12H8O dibenzo[bd]furan
3 CH4O methanol
4 C2H4O2 acetic acid
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
  • 3
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 2; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 3; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 2
  • Closed cell (Static) method
  • 32
  • POMD
  • 4
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 2; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 4; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 2
  • Closed cell (Static) method
  • 34