The separation of aromatic and aliphatic compounds from their mixtures is an important goal in chemical operations that produce both types of compounds. In petroleum industries, the properties of middle distillate fuels can be improved using dearomatization processes. The ionic liquid (IL), 4-methyl-Nbutylpyridinium tetrafluoroborate [(mebupy)(BF4)], was evaluated as a solvent for the extraction of propylbenzene from its mixtures with high molar mass n-alkane. Liquid-liquid equilibria (LLE) for a ternary system heptadecane + propylbenzene + [(mebupy)(BF4)] was measured over a temperature range (313 to 333) K and at different solvent to feed ratios. The reliability of the experimental data was tested using the Othmer-Tobias correlation. The effect of temperature and solvent to feed ratio upon solubility, selectivity, and distribution coefficient were investigated experimentally. In addition, the UNIQUAC and the NRTL models were verified to accurately correlate the experimental data. A proposal of extraction process with this IL as a solvent was simulated by conventional software.
Compounds
#
Formula
Name
1
C10H16BF4N
1-butyl-4-methylpyridinium tetrafluoroborate
2
C9H12
propylbenzene
3
C17H36
heptadecane
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.