Optimization of Hybrid Distillation-hydrophilic and Organophilic Pervaporation Systems
Do Thi, Huyen Trang
Szilagyi, Botond
Haaz, Eniko
Fozer, Daniel
Toth, Andras Jozsef

How to Cite

Do Thi H.T., Szilagyi B., Haaz E., Fozer D., Toth A.J., 2021, Optimization of Hybrid Distillation-hydrophilic and Organophilic Pervaporation Systems, Chemical Engineering Transactions, 86, 1027-1032.


The hybrid distillation-pervaporation process is an efficient method for the removal or recovery of volatile organic compounds from their aqueous mixtures. The hybrid distillation-pervaporation process has not only shown its excellent performance in the purification of solvent mixtures but also proven to have a potential of saving energy. In this study, the hybrid distillation-pervaporation process is optimized for the treatment of low-alcohol waste solvents. Three combinations are examined: distillation with hydrophilic pervaporation, distillation with organophilic pervaporation and distillation with both pervaporation methods. The hybrid systems result in a better performance in term of energy-use compared to conventional distillation. It is observed that a combination of distillation and hydrophilic or/and organophilic pervaporation is suitable for the separation of ethanol-water mixtures and the most recommended is the third layout.
Keywords: hybrid distillation-pervaporation process, pervaporation, ethanol-water separation, azeo