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

Solubility of Ethene in n-Hexane and n-Heptane as Common Slurry-Phase Polymerization Solvents: Experimental Measurement and Modeling

Dashti, A.[Ali], Mazloumi, S. H.[Seyed Hossein], Akbari, A.[Amir], Ahadiyan, H. R.[Hamid Reza], Emami, A. R.[Ali Reza]
J. Chem. Eng. Data 2016, 61, 1, 693-697
ABSTRACT
To evaluate solvent performance, mass transfer calculation of gas liquid phases and good prediction of catalyst activity and polymer product yield, precise experimental solubility data are required in slurry-phase ethene polymerization. The solubility of ethene in n-hexane and n-heptane as commercial solvent of ethene slurry-phase polymerization was measured at pressures from 0.18 to 1.6 MPa and temperatures ranging from 303 to 348 K. A static apparatus is used to measure the experimental data. The experimental data are modeled using Peng Robinson cubic equation of state (PR CEOS) with vdW mixing rule with two adjustable parameters. The modeling results show the PR CEOS is capable to represent the experimental data well.
Compounds
# Formula Name
1 C2H4 ethene
2 C6H14 hexane
3 C7H16 heptane
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
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 41
  • POMD
  • 1
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 19