Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
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Water Vapor Adsorption Properties of Honeycomb-Type Zeolites for Tritium Removal Systems
Masahiro TANAKATatsuhiko UDAKenzo MUNAKATA
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2011 Volume 6 Pages 2405038

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Abstract

We have proposed the application of a honeycomb-type adsorbent and catalyst for an advanced tritium removal system. Honeycomb-type materials exhibit a much lower pressure drop than pellet-type materials. In this study, the water vapor adsorption properties of various types of honeycomb adsorbents were evaluated using the breakthrough method at a constant flow rate of 307 cm3/min under various temperature and water vapor partial pressure conditions. The results revealed that the adsorption capacity of water vapor on the honeycomb-type zeolite increased with the water vapor partial pressure and the zeolite content of the honeycomb adsorbents. Furthermore, the honeycomb-type zeolite was found to have a higher adsorption rate than the pellet-type zeolite, and the temperature required for regeneration of the honeycomb-type zeolite was at least 450 K. From the viewpoint of practical use, the honeycomb-type adsorbent that contained 50% zeolite with 200 cells per square inch was considered to have superior adsorption properties and a lower pressure drop among a series of honeycomb-type adsorbents.

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© 2011 by The Japan Society of Plasma Science and Nuclear Fusion Research
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