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Membrane distillation for propanone removal from aqueous streams
Author(s) -
Banat Fawzi A,
Simandl Jana
Publication year - 2000
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(200002)75:2<168::aid-jctb192>3.0.co;2-x
Subject(s) - membrane distillation , aqueous solution , distillation , chemistry , membrane , coolant , volumetric flow rate , chromatography , chemical engineering , organic chemistry , desalination , thermodynamics , biochemistry , physics , engineering
The use of air‐gap membrane distillation for the selective removal of propanone from aqueous solutions was tested. The effect of the following operating conditions upon flux and selectivity was experimentally examined: feed concentration, feed flow rate, feed temperature, and coolant temperature. Although the PVDF membranes tested performed well at the propanone feed concentrations encountered in fermentation processes, they demonstrated wetting limitations at higher concentrations. Within the feed temperature range of 40–70 °C, and propanone concentration up to 6 wt%, propanone selectivities of 2–6 were achieved. A mathematical model of the process was developed and validated. © 2000 Society of Chemical Industry