Abstract
The chitosan composite membranes supported by the unhydrolyzed highly cyanoethylation cellulose (HCEC), hydrolyzed cellulose triacetate (CTA), unhydrolyzed and hydrolyzed CTA-HCEC blend layers respectively were prepared for pervaporation (PV) separation of alcohol. The effects of feed concentration, operation temperature, and the molecular size and shape of alcohol on the permselectivity of the composite membranes used were investigated. The measurement of molecular weight cut-off, the infrared (IR) spectroscopic analysis and the scanning electronic microscopy (SEM) observation were used to investigate the effects of the support membrane properties on the permselectivity of chitosan composite membrane.
