June 18, 2024
Majid Mohadesi

Majid Mohadesi

Academic rank: Associate professor
Address: Department of Chemical Engineering, Faculty of Engeenring, Kermanshah University of Technology (KUT), Imam Khomeini Highway, Kermanshah, Iran
Education: Ph.D in Chemical Engineering
Phone: 083-38305000 (1167, 1025)
Faculty: Faculty of Engineering


Experimental Investigation and Thermodynamic Modeling of Glycerin/ Methanol/Organic Solvent Systems
Type Article
Glycerin purification, NRTL, Solvent extraction, Ternary system, Thermodynamic modeling, UNIQUAC
Researchers Hosnie-Sadat Mousavi، Masoud Rahimi، Majid Mohadesi


Glycerin is an important by-product in biodiesel production. To increase its qual- ity to be suitable for use it in other operations, e.g., the pharmaceutical industry, it needs to be purified. Therefore, the purification of glycerin by liquid-liquid extrac- tion of methanol using different solvents was investigated. It was shown that, in terms of separation, petroleum ether was more effective than toluene and toluene was more effective than n-butanol. In addition to the experimental investigations, the NRTL and UNIQUAC thermodynamic models were used to predict the com- positions of ternary mixtures of glycerin + methanol + organic solvent in glycer- in-rich and organic solvent-rich phases. The results showed the high accuracy of the presented models and their consistency with the measured data.