PFG NMR study of the transport properties of A-type zeolite membranes

(Note: The full text of this document is currently only available in the PDF Version )

Wilfried Heink, Jörg Kärger, Ulf Winkler and Tim Naylor


Abstract

The transport properties of an A-type zeolite membrane are traced by monitoring the diffusion paths of ethane and propane from ca. 300 nm up to 10 µm; over distances < 1 µm, the diffusivities are found to be comparable with those in a mono-crystal, while for large displacements by a factor of two to three smaller diffusivities were observed.


References

  1. T. Naylor, Poster presentation by The Smart Chemical Company Ltd, ICOM96 Japan, 1996.
  2. J. Kärger and D. H. Ruthven, Diffusion in Zeolites and Other Microporous Solids, Wiley, New York, 1992 Search PubMed.
  3. W. Heink, J. Kärger and H. Pfeifer, J. Chem. Soc., Chem. Commun., 1990, 20, 1454 RSC.
  4. J. Kärger, N.-K. Bär, W. Heink, H. Pfeifer and G. Seiffert, Z. Naturforsch., Teil A, 1995, 50, 186.
  5. H. Weingärtner, Z. Phys. Chem. Neue Folge, 1982, 132, 129.
  6. W. Heink, J. Kärger, H. Pfeifer, K. P. Datema and A. K. Nowak, J. Chem. Soc., Faraday Trans., 1992, 88, 3505 RSC.
  7. J. Kärger, H. Pfeifer, R. Richter, H. Fürtig, W. Roscher and R. Seidel, AIChE J., 1988, 34, 1185 CrossRef.
Click here to see how this site uses Cookies. View our privacy policy here.