Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 37 / Number 1
Yoshinori Kawamura, Mikio Enoeda, R. Scott Willms, Peter M. Zielinski, Richard H. Wilhelm, Masataka Nishi
Fusion Science and Technology
Volume 37 / Number 1 / January 2000 / Pages 54-61
Format:electronic copy (download)
The cryosorption method is useful for extracting hydrogen isotopes from a helium gas stream with a small amount of hydrogen isotopes. Therefore, in fusion reactors, this method is expected to be applied for the helium glow discharge exhaust gas processing system and the blanket tritium recovery system. To design these systems, adsorption isotherms for each hydrogen isotope are needed, making it possible to estimate the amount of adsorption in a wide pressure range. The amount of tritium adsorption on molecular sieve 5A, molecular sieve 4A, and activated carbon, which are potential adsorbents in the cryosorption bed, at liquid nitrogen temperature were quantified using the volumetric method. It was found that adsorption isotherms of tritium were also expressed with the two-site Langmuir model and that the obtained isotherms were close to the reported isotherms, the Langmuir coefficients for which were estimated using a reduced mass of hydrogen isotopes.
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