Separation of alcohol/water mixtures by ZSM-5 bulk bodies prepared with a one-pot hydrothermal method

Eisaku Igi, Yoshikazu Kameshima, Shunsuke Nishimoto, Michihiro Miyake

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The present work demonstrates a novel separation technique by ZSM-5 zeolite bulk bodies, which were successfully prepared with a one-pot hydrothermal method at 200 °C for 5 d, using the raw materials that are used in the synthesis of ZSM-5 powders. It is found that these materials can efficiently concentrate a 5 mass% ethanol/water mixture by vapor permeation at approximately 5 kPa to produce a permeate of approximately 76 mass% at an extremely large flux of about 35 kg·(m2 h)-1, even though they are porous. The permeate flux is unchanged for a long time. These bulk bodies show promise as materials for the innovative energy-efficient separation of ethanol/water, especially compared with the membranes previously used for such separations. Furthermore, they can efficiently concentrate 5 mass% methanol/water and 2-propanol/water mixtures.

Original languageEnglish
Pages (from-to)160-164
Number of pages5
JournalMicroporous and Mesoporous Materials
Volume208
DOIs
Publication statusPublished - May 15 2015

Keywords

  • Alcohol/water mixtures
  • MFI-type zeolites
  • Preparation
  • Separation
  • Zeolite bulk bodies

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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