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Ingress of water into zeolite 4A powder plugs

✍ Scribed by B. Leone; M.R. Halse; J.H. Strange; A.R. Lonergan; P.J. McDonald; E. Smith

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 202 KB
Volume: 12
Category: Article
ISSN: 0730-725X
DOI: 10.1016/0730-725x(94)91528-8

No coin nor oath required. For personal study only.

✦ Synopsis

One dimensional profiles of the concentration of water absorbed from vapour diffusing into compacted type 4A zeolite powder have been obtained by broadline NMR imaging. After an induction period of -6 h, a region of full hydration advances linearly with time into the zeolite plug. This behaviour is typical of Case II diffusion. A simple numerical simulation gives good agreement with the experimental results.

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