Using of polydimethylsiloxane composite membrane for isobutanol separation from aqueous solution by pervaporation

Pervaporation is a membrane technique, which allows selective removal of organic compounds from dilute aqueous solutions. In this work, pervaporation experiments wereconducted to recover isobutanol from model aqueous solutions using a commercial poly dimethylsiloane (PDMS) compositemembrane. The effect of feed flow rate, which is corresponded to Reynolds number, on the performance of pervaporation process for separation of isobutanol from a 2%wt aqueous feed solution was investigated.