Permeation studies of tetrahydrofuran-water mixtures by pervaporation experiments

S. Ray, S. K. Ray

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Pervaporative dehydration of tetrahydrofuran (THF) over the concentration range of 0-27 wt% water in feed has been studied using poly(acrylonitrile-co-methyl acrylate) copolymer membrane. The permeate water flux and selectivity for water was measured over the same concentration range at 30, 40 and 50 °C. The membrane was found to exhibit reasonable water flux (76 g/m2 h) with high water selectivity (107.25) for dehydration of highly concentrated THF (1.13 wt% water in feed) at 30 °C. The activation energy for permeation was found to decrease linearly with increase in water concentration in feed after a certain feed concentration (above around 5 wt% water in feed). The permeation factor of water was found to be greater than unity signifying positive coupling effect of THF on water permeation.

Original languageEnglish (US)
Pages (from-to)156-160
Number of pages5
JournalSeparation and Purification Technology
Volume50
Issue number2
DOIs
StatePublished - Jun 15 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Filtration and Separation

Keywords

  • Dehydration
  • Permeation factor
  • Pervaporation
  • Selectivity
  • THF

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