Mechanisms evaluation and characterization of butanol concentration using pervaporation

Pervaporation (PV) is a membrane-based process. The liquid feed remains in contact with the active part of the membrane, which selectively transports components to its another side. Many different models can describe this phenomenon, but usually a number of simplifications have to be made. This is b...

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Bibliographic Details
Published in:Desalination and water treatment 2017-02, Vol.64, p.378-382
Main Authors: Rdzanek, Paulina, Marszałek, Joanna, Kamiński, Władysław
Format: Article
Language:English
Subjects:
Biobutanol
Pervaporation
Semi-empirical model
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Summary:Pervaporation (PV) is a membrane-based process. The liquid feed remains in contact with the active part of the membrane, which selectively transports components to its another side. Many different models can describe this phenomenon, but usually a number of simplifications have to be made. This is because several elements of mass transfer process should be taken into account. The presented work discusses all transport mechanisms, which occur in the vacuum PV. The authors recommend the semi-empirical approach, which allows predicting effects of PV process, basing on the experimental data and the component activity. As an example, the separation of butanol from acetone-butanol- ethanol-water solutions is presented. Additionally, a resistance of the mass transfer process through the commercial (PERVAP 4060) membrane is considered. According to calculations, the highest mass transfer resistances were estimated for butanol and ethanol. The enrichment factor of membranes was also shown. Butanol concentration increased 16-fold in refer to their concentration in the feed.
ISSN:1944-3986
DOI:10.5004/dwt.2017.11400