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Membrane Water Treatment   Volume 10, Number 6, November 2019, pages 441-449
DOI: https://doi.org/10.12989/mwt.2019.10.6.441
 
Effect of different conditions on pervaporation dehydration in CA/NYL66 blend membrane
Akram Kazemzadeh, Seyed M. Mousavi, Jamshid Mehrzad, Alireza Motavalizadehkakhky and Malihesadat Hosseiny

 
Abstract     [Buy Article]
    In this study, cellulose acetate (CA) / nylon66 (NYL66) (95/5) blend membranes with different thicknesses were prepared by a solvent evaporation method. The effects of membrane thickness (almost 7-25 micrometre), feed concentration (70- 95 wt.% isopropanol), and feed temperature (30-60 C) were investigated on the performance of membrane in the separation of isopropanol-water mixtures. With regard to the results of sorption experiments, it was found that the increase of feed temperature enhanced the overall sorption while by increasing feed concentration, the overall sorption passed through a maximum value at 70 wt. % isopropanol (IPA) . The best separation factor 3080.51 was gained at high isopropanol concentration 95 wt.%, low feed temperature 30 C, and high membrane thickness 24.62 micrometre. Regarding the pervaporation separation index, the obtained results showed that proper values for the thickness of membrane, feed temperature, and isopropanol concentration in feed were 24.62 micrometre, 40 C, and 70 wt.%, respectively.
 
Key Words
    cellulose acetate/ nylon 66; pervaporation; dehydration; isopropanol-water mixture
 
Address
Akram Kazemzadeh, Jamshid Mehrzad,
Alireza Motavalizadehkakhky and Malihesadat Hosseiny: Department of Chemistry, Neyshabur Branch, Islamic Azad University, 9319797139 Neyshabur, Iran
Seyed M. Mousavi: Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, 9177948974 Mashhad, Iran
 

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