✦ LIBER ✦

Single-Point Magnetic Resonance Imaging Study of Water Adsorption in Pellets of Zeolite 4A

✍ Scribed by Pablo J. Prado; Bruce J. Balcom; Mohamed Jama

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 479 KB
Volume: 137
Category: Article
ISSN: 1090-7807
DOI: 10.1006/jmre.1998.1634

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✦ Synopsis

The water uptake process in commercial type particles of zeolite 4A has been studied using a single-point MRI method. True proton density, T 1 , T 2 , and T* 2 relaxation times were obtained with submillimetric resolution, overcoming the restrictions of short T* 2 signals. The molecular mobility in nonequilibrium conditions has been characterized by relaxation time mapping. A clear reduction of the water sorption rate was observed by comparing MRI profiles of a loosely packed bed and gravimetric measurements of spread particles from the same sieved zeolite batch.

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