Dehydration of Organic Solutions by a Recirculated Air Sweep Pervaporation Process Using Anion-Exchange Hollow Fibers

Authors

  • Emanuel Korngold Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
  • Elisheva Zisner Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
  • Tony (Tuvia) Bejerano Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel

DOI:

https://doi.org/10.6000/1929-6037.2016.05.02.3

Keywords:

Solvent dehydration, pervaporation, anion exchange hollow fibers, dielectric constant.

Abstract

An air sweep pervaporation process with thin anion-exchange hollow fibers was investigated for various water-organic solvent mixtures at different operating conditions. It was found that flux and separation factor increased with a decrease of the dielectric constant of the organic solvent. When the temperature of the process was increased, the flux increased. At feed temperatures of 65–70°C it was possible to reduce the water concentration in a 3–10% isopropyl alcohol (IPA) solution to 0.5%. The energy requirement for decreasing the water concentration in IPA from 3–10% to 0.5% was 100–225 kWh ton-1.

References

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Published

2016-07-27

How to Cite

Korngold, E., Zisner, E., & (Tuvia) Bejerano, T. (2016). Dehydration of Organic Solutions by a Recirculated Air Sweep Pervaporation Process Using Anion-Exchange Hollow Fibers. Journal of Membrane and Separation Technology, 5(2), 62–68. https://doi.org/10.6000/1929-6037.2016.05.02.3

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