Mass Transfer Characteristics of Isopropanol Pervaporative Dehydration through CMC-CA-01 Membrane

Abstract

Pervaporation can subsitute conventional azeotropic distillation as an alternative dehydration process. Applying this technique, the azeotropic point of azeotrope can be exceeded without any additives under boiling temperature. The entire energy used for dehydration is substantially lower in comparison with azeotropic rectification, furthermore, this modern separation process without additives can be part of an enviromentally conscious technology. In the course of our experiments we described with the pervaporational behavior of isopropyl alcohol from experimental data of model solutions. At the Corvinus University of Budapest, Department of Food Engineering the matemathical modeling was carried out, using our earlier experimental data whith CMC-CA-01 membrane. The aim of this calculations was the definition of the mass transfer properties of the membrane and development of design eqauations for industrial application. As the results are demonstrated, that membrane characteristic defined by resistance in series model provides fundamentals for technological design to industrial application and for the economical examination. And it also provides data for the process simulation of hybrid technology.