In situ determination of the adsorption characteristics of a zeolite membrane

Trevor E. Clark, Harry W. Deckman, Donald M. Cox, Ronald R. Chance

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26 Scopus citations

Abstract

A methodology based on adsorption-branch porosimetry is described for in situ measurement of the adsorption of condensable gases within the pore structure of inorganic membranes. The method is applied to the study of n-hexane and p-xylene adsorption in a high-silica, MFI zeolite membrane. The results, interpreted in terms of a simple model for competitive adsorption effects on the permeance of a non-adsorbing gas, yield Langmuir adsorption constants and Henry's law constants for n-hexane and p-xylene that are in excellent agreement with measurements on bulk materials. The method is proposed for the fundamental study of fouling characteristics of inorganic membranes, especially in cases where a true bulk surrogate is not available.

Original languageEnglish (US)
Pages (from-to)91-98
Number of pages8
JournalJournal of Membrane Science
Volume230
Issue number1-2
DOIs
StatePublished - Feb 15 2004

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • General Materials Science
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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