[Table of Contents]

Plasma and Fusion Research

Volume 6, 2405038 (2011)

Regular Articles

Water Vapor Adsorption Properties of Honeycomb-Type Zeolites for Tritium Removal Systems
Masahiro TANAKA, Tatsuhiko UDA and Kenzo MUNAKATA1)
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
Akita University, 1-1, Gakuen-machi, Tegata, Akita 010-5802, Japan
(Received 7 December 2010 / Accepted 17 March 2011 / Published 1 July 2011)


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.


tritium removal system, high throughput, low pressure drop, honeycomb, cell density, zeolite content, water adsorption, molecular sieves, breakthrough curve

DOI: 10.1585/pfr.6.2405038


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This paper may be cited as follows:

Masahiro TANAKA, Tatsuhiko UDA and Kenzo MUNAKATA, Plasma Fusion Res. 6, 2405038 (2011).