Thermodynamic modeling and experimental studies of dearomatization processfrom a complex petroleum fraction

Experimental studies and thermodynamic modeling for the separation of aroma tic compounds from a complex mixture of hydrocarbons have been carried out. The sample used in this work is the main material for producing lubricatin g oils, and the solvent used for extraction of aromatic components is a new selective solvent which has unique specifications in comparison with conve ntional solvents such as furfural. This modeling is based on the method of Ruzicka for making model molecules. The parameters required for modeling we re obtained, and then liquid-liquid equilibrium calculations were done and compared with the experimental data. These calculations were also carried o ut using published parameters for the vapor-liquid equilibria of the compon ents involved in the mixture. The results have been compared with the previ ous calculations as well as with the experimental data, and good agreement was found.