The modeling of pervaporative dehydration of isopropyl-alcohol on hydrophilic membranes is reported. The model demonstrates that the reciprocal value of the overall mass transfer coefficient is equal to the reciprocal value of the total amount of mass transfer coefficients in the case of the applied membrane and the applied isopropyl alcohol-water mixture's liquid side. The mass transfer coefficients on the liquid side have a lower order of magnitude than in the case of membrane and the overall mass transfer data at every temperature. The mass transfer coefficient of the membrane is equal to the overall mass transfer coefficient, and is determined by the membrane and its structure in every case. The running of the partial flow rates corresponds to a zero point fixed linear function and depends on the feed concentration. The resistance of the liquid side boundary layer makes up only an infinitesimal part of the total resistance of the pervaporation process.
|Number of pages||3|
|Journal||Chemical and Biochemical Engineering Quarterly|
|Publication status||Published - Dec 1 2010|
ASJC Scopus subject areas
- Process Chemistry and Technology