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 language | English (US) |
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Pages (from-to) | 91-98 |
Number of pages | 8 |
Journal | Journal of Membrane Science |
Volume | 230 |
Issue number | 1-2 |
DOIs | |
State | Published - Feb 15 2004 |
All Science Journal Classification (ASJC) codes
- Biochemistry
- General Materials Science
- Physical and Theoretical Chemistry
- Filtration and Separation