Dehydration of acetic acid, alcohols, and acetone by pervaporation using acrylonitrile-maleic anhydride copolymer membrane

S. Ray, S. K. Ray

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Pervaporative dehydration of acetic acid, ethyl alcohol, isopropyl alcohol, and acetone over the entire concentration range of 0-100wt% is studied using acrylonitrile-maleic anhydride copolymer membrane. The membrane exhibits reasonable performance with respect to both separation factor and permeance (11.0 and 279.4 g/m2.hr./bar, respectively, at 92wt% feed cone, of water) for acetone dehydration. Dehydration performances of acetic acid and ethyl alcohol are comparable (permeance and separation factor of water for its mixture with acetic acid is 119.5 gm/m2.hr./bar and 2.4, respectively, while the same for its mixture with ethyl alcohol is 125.4 gm/m2.hr./bar and 2.5, respectively, at 50wt% feed) over the whole concentration range. Isopropyl alcohol shows the best separation factor for water at very low alcohol concentration (8.7 at 2.5 wt% feed) with lowest permeance among the four systems of separations.

Original languageEnglish (US)
Pages (from-to)1583-1596
Number of pages14
JournalSeparation Science and Technology
Volume40
Issue number8
DOIs
StatePublished - Jul 7 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Process Chemistry and Technology
  • Filtration and Separation

Keywords

  • Acetic acid
  • Acetone
  • Alcohols
  • Dehydration
  • Pervaporation
  • Poly(acrylonitrile-co-maleic anhydride)

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