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Solvent resistant nanofiltration: developing understanding of transport mechanisms

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conference contribution
posted on 06.07.2009, 14:28 by Steve Tarleton, J.P. Robinson
In recent years the possibility of using polymeric nanofiltration (NF) membranes for non-aqueous separations has been explored. There is, however, significant debate concerning fundamental mechanisms where concepts include solution-diffusion and ‘pore’ flow. This paper presents nanofiltration and swelling data for polyacrylonitrile (PAN)/poly-dimethylsiloxane (PDMS) composite membranes with a range of low and higher polarity solvents, some of which contained solutes in the range 84-612 MW. The influences of parameters such as crossflow rate, applied pressure, solute size and solvent polarity on filtration performance are presented and measures of flux and solute rejection are related to membrane swelling. More comprehensive descriptions of the experimental apparati and results are shown in [1-7].

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Citation

TARLETON, E.S. and ROBINSON, J.P., 2006. Solvent resistant nanofiltration: developing understanding of transport mechanisms. International Workshop: Membranes in Solvent Filtration, 23-24 March, Leuven, Belgium, Paper 14.

Publisher

VITO NV and KU Leuven

Version

AM (Accepted Manuscript)

Publication date

2006

Notes

This is a conference paper.

Language

en

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Keywords

Exports