The equilibrium solubility of anthracene (as a model of coke precursor) in sub- and supercritical propane has been measured using a static viewcell at temperatures from (298 to 405) K and pressures from (4.7 to 11.3) MPa. The values of the mole fraction of anthracene in propane were from 1.4*10-4 to 6.6*10-3 over the experimental conditions studied. These values are two orders of magnitude higher than those reported in the literature for anthracene in CO2 and are indicative of the excellent solvent properties of propane for the extraction of polyaromatics, compared to supercritical CO2. The experimental solubility data have been correlated by the Peng-Robinson equation of state using different mixing rules for the calculation of parameters a and b. The mathematical model proposed provides a good agreement between the experimental and the calculated solubility, with a standard deviation of 6*10-4 of the model predictions.
Compounds
#
Formula
Name
1
C3H8
propane
2
C14H10
anthracene
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
Mole fraction - 2 ; Fluid (supercritical or subcritical phases)
Temperature, K; Fluid (supercritical or subcritical phases)
Pressure, kPa; Fluid (supercritical or subcritical phases)