Permeation of Adsorbable and Non-Adsorbable Gases in Microporous Zeolite Membranes

A simple experiment is described to study the permeation of adsorbable and non-adsorbable gases through microporous membranes. The permeation fluxes of nitrogen and carbon dioxide through a zeolite membrane are measured at two temperatures for different trans-membrane pressure drops. Single gas perm...

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Bibliographic Details
Published in:Journal of chemical education 2009-08, Vol.86 (8), p.976
Main Authors: Lito, Patrícia F., Magalhães, Ana L., Silva, Carlos M., Fernandes, Daniel L. A.
Format: Article
Language:English
Subjects:
Ammonia
Coal gas
Energy consumption
Experiments
Gas mixtures
Gas streams
Gases
Hydrocarbons
Hydrogen ion concentration
Industrial applications
Inorganic chemistry
Isomers
Mass transport
Membrane separation
Membranes
Natural gas
Nitrogen
Odor control
Odors
Organic compounds
Petrochemicals industry
Refineries
Selectivity
Separation
Streams
VOCs
Volatile organic compounds
Water treatment
Zeolites
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Description
Summary:A simple experiment is described to study the permeation of adsorbable and non-adsorbable gases through microporous membranes. The permeation fluxes of nitrogen and carbon dioxide through a zeolite membrane are measured at two temperatures for different trans-membrane pressure drops. Single gas permeances and the corresponding ideal selectivities are calculated as function of the pressure drop. Based on the experimental results, students are able to identify and discriminate transport mechanisms occurring in porous media and gain insight on fundamentals of membrane and diffusion processes.
ISSN:0021-9584
1938-1328
DOI:10.1021/ed086p976