Optimization of Hybrid Distillation-hydrophilic and Organophilic Pervaporation Systems

Autor: Huyen Trang Do Thi, Botond Szilagyi, Eniko Haaz, Daniel Fozer, Andras Jozsef Toth
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Chemical Engineering Transactions, Vol 86 (2021)
Druh dokumentu: article
ISSN: 2283-9216
DOI: 10.3303/CET2186172
Popis: 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
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