Use of pervaporation systems in the chemical industry

✍ Scribed by G.F. Tusel; H.E.A. Brüschke

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 353 KB
• Volume: 53
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/0011-9164(85)85070-0

✦ Synopsis

Pervaporation is a very effective membrane process for the separation of liquid mixtures . Due to its economics, efficacy and simplicity, it can easily be integrated into distillation and rectification processes and, depending on the specific operation parameters, even partially replace them . At present, data on industrial scale pervaporation processes are available on the removal of water from aqueous-organic mixtures, e .g, dehydration of aqueous ethanol as well as aqueous isopropanol .

Based on this separation process, basic principles of pervaporation are outlined and the requirements on membranes, modules and process design are discussed . Further examples describing the dehydration of binary and ternary mixtures of organic solvents with water will explain the economic potential of pervaporation processes in the chemical industry .