Selective ethanol extraction from fermentation broth using a silicalite membrane

Mikihiro Nomura, Tang Bin, Sin Ichi Nakao

Research output: Contribution to journalArticlepeer-review

132 Citations (Scopus)


The selective extraction of ethanol from ethanol fermentation broth through a silicalite zeolite membrane was investigated. Ethanol (98.2 wt.%) at permeate side which is above the azeotropic composition, was continuously obtained from the fermentation broth having a 20 wt.% ethanol concentration. The separation factor of ethanol over water was 218, which is higher than that from water-ethanol mixtures. This high ethanol selectivity was due to the salts that are contained in fermentation broth. The high ethanol selectivity was maintained for 48 h.

Original languageEnglish
Pages (from-to)59-66
Number of pages8
JournalSeparation and Purification Technology
Issue number1
Publication statusPublished - 2002 Apr 1
Externally publishedYes


  • Ethanol extraction
  • Fermentation broth
  • Pervaporation
  • Silicate zeolite membrane

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation


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