ZSM-5 zeolite membranes prepared from a clear template-free solution

Gang Li, Eiichi Kikuchi, Masahiko Matsukata

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Template-free nanosized ZSM-5 seeds were prepared from commercially available ZSM-5 powder. By use of these seeds, thin and hydrophilic ZSM-5 zeolite membranes were prepared on the outer surface of a porous α-alumina tube in a clear solution free from organic template. The membranes showed high thermal stability to withstand pretreatment at 400 °C. At 270 °C, the ideal selectivities for H2/i-butane and N2/SF6 were 61 and 20, respectively. The membrane was effective to separate butane isomers at high temperatures. The maximum of the n/i-butane ideal selectivity was 36 at 300 °C. The separation factors for a 50/50 n/i-butane mixture were as high as 13 in the temperature range from 300 to 400 °C.

Original languageEnglish
Pages (from-to)225-235
Number of pages11
JournalMicroporous and Mesoporous Materials
Volume60
Issue number1-3
DOIs
Publication statusPublished - 2003 Jun 19

Keywords

  • Butane isomers
  • Clear solution
  • Template-free
  • Thermal stability
  • ZSM-5 membrane

ASJC Scopus subject areas

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

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