Nanocomposite silicalite-1/polydimethylsiloxane membranes for pervaporation of ethanol from dilute aqueous solutions

Amit Yadav, Marylaura Thomas, Xiaoli Ma, Y. S. Lin

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Separation of alcohols from dilute aqueous solutions is important to enable continuous microbial production of biofuels. Pervaporation is a process with great potential for continuous extraction of alcohols from biological fermentation broths. Here, we report on the synthesis and pervaporation performance of thin, supported pure polydimethylsiloxane (PDMS) and silicalite-1/PDMS nanocomposite membranes with nanoparticle contents of 10, 20, and 30 wt %. Using a batch pervaporation system, we measured flux and separation factors of the membranes for solutions of 4 wt % ethanol in water at 25 °C, 50 °C, and 65 °C. With increased nanosilicalite loadings in the nanocomposite membranes, we obtained both increased flux and increased alcohol separation factors.

Original languageEnglish (US)
Pages (from-to)5207-5212
Number of pages6
JournalIndustrial and Engineering Chemistry Research
Volume52
Issue number14
DOIs
StatePublished - Apr 10 2013

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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