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References (16)
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Effects of Micropores on Peak Shape and Retention Volume in Gas‐Solid ChromatographyAnal. Chem., 42
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- Publisher
- Wiley
- Copyright
- Copyright © 1977 American Institute of Chemical Engineers
- ISSN
- 0001-1541
- eISSN
- 1547-5905
- DOI
- 10.1002/aic.690230605
- Publisher site
- See Article on Publisher Site
Abstract
The chromatographic method has been used to study the sorption and diffusion of methane, ethane, propane, and cyclopropane in 5A molecular sieve. Both the equilibrium isotherms and the time constants for zeolitic diffusion, obtained from the chromatographic peaks, agree well with the values obtained previously by the gravimetric method, thus confirming the validity of the experimental technique. The results obtained in several previously reported chromatographic studies are reviewed, and it is shown that the apparent discrepancies between chromatographic and gravimetric data arise mainly from differences in the way in which the micropore diffusivity is defined. The relative advantages and disadvantages of the gravimetric and chromatographic methods are briefly considered.
Journal
Aiche Journal – Wiley
Published: Nov 1, 1977