Synthesis of SAPO-34 Membrane and Its Application to the Separation of Water/Acetic Acid Mixtures by Vapor Permeation

Ataher Ahmed, Sonosuke Ishiguro, Masahiro Seshimo, Bharathi Subramanian, Masahiko Matsukata*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

CHA-type zeolite SAPO-34 membranes were synthesized on a tubular porous α-alumina support using a secondary growth method and evaluated for the separation of water/acetic acid mixtures by vapor permeation. The effects of SiO2 molar fraction in the preparation gel on the membrane formation process and the separation properties of SAPO-34 membranes were studied. The SiO2 molar fraction in the synthesis gel substantially influenced the separation properties of prepared membranes. The membrane synthesized using a gel with a composition of 1.0 Al2O3:0.9 H3PO4:0.6 SiO2:0.8 TEAOH:100 H2O demonstrated a high separation factor of 140 with water permeance of 2.2 x 10-7 mol/m-s-Pa. Prepared SAPO-34 membranes showed resistance against acetic acid.

Original languageEnglish
Pages (from-to)97-104
Number of pages8
JournalJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Volume55
Issue number2
DOIs
Publication statusPublished - 2022 Feb 20

Keywords

  • Dehydration
  • SAPO-34
  • Vapor Permeation
  • Water/Acetic Acid Separation
  • Zeolite Membrane

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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