Volume 41, Issue 2 pp. 278-284
Research Article

Investigation into Ethanol Purification Using Polymeric Membranes and a Pervaporation Process

Nahid Raoufi

Corresponding Author

Nahid Raoufi

Islamic Azad University, Department of Chemical Engineering, South Tehran Branch, Tehran, Iran

Correspondence: Nahid Raoufi ([email protected]), Department of Chemical Engineering, Islamic Azad University, South Tehran Branch, Tehran, Iran.Search for more papers by this author
Mehdi Asadollahzadeh

Mehdi Asadollahzadeh

Islamic Azad University, Department of Chemical Engineering, South Tehran Branch, Tehran, Iran

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Saeed Shirazian

Saeed Shirazian

University of Limerick, Department of Chemical Sciences, Bernal Institute, Limerick, Ireland

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First published: 20 October 2017
Citations: 13

Abstract

A comprehensive computational fluid dynamics simulation was developed for the rational design of a bioethanol purification system using a pervaporation process by tailoring the hydrodynamics of the process. The process involves the removal of water from a water/ethanol liquid mixture using a dense polymeric membrane. The model domain was divided into two compartments comprising the feed and the membrane. To describe water transport in the feed solution, the Maxwell-Stefan approach was used, whereas for mass transfer inside the membrane the molecular diffusion mechanism was adopted. The governing equations were solved numerically by using a finite element method. The model was capable of predicting mass transfer along with momentum transfer in the feed and membrane compartments.

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