Numerical study on extraction of tritium generated in HMR by way of system composed of EXEL-process and thermal diffusion column cascade

• Autorzy: Shimizu M. , Takeshita K.
• Konferencja: Proceedings of the International Conference “2001 an Isotope Odyssey: New Application for a New Millenium", June 24-29, 2001, Zakopane, Poland
• Języki publikacji: EN

Abstrakty

EN

A new tritium extraction system composed of a trickle-bed hydrogen/water isotopic exchange column using a hydrophobic Pt-catalyst combined with an SPE-water electrolyser (EXEL-process) and a thermal diffusion column cascade was proposed for the removal of tritium from heavy water irradiated in HMR ((Heavy Water Moderated Power Reactor), volume of heavy water = 140 m3 and mean neutron flux = 5×1013 n/cm2s). Numerical study on the extraction of tritium from the heavy water was carried out and the dimensions of proposed system were determined under the conditions that the concentration of tritium in the heavy water was kept less than 2.5 Ci/lHW. The calculation results indicated that the proposed system was designed practically.

Słowa kluczowe

EN

chemical exchange reaction; heavy water; isotope separation; thermal diffusion; trickel-bed reactor; tritium

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2002
• Tom: Vol. 47,suppl.1
• Strony: 89--93
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Shimizu M.

• Isotope Science Laboratory, 1198 Isshiki, Hayama, Kanagawa-ken (240-0111) Japan

autor

Takeshita K.

• Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku Yokohama (226-8502) Japan, Tel.: [phone], Fax: [phone]

Bibliografia

• 1. Damiani M, Getraud R, Senn A (1972) Tritium and hydrogen extraction plants for atomic power reactor. Sulzer Special Number Nuclex 72, pp 41–45
• 2. Damiani M, Pautrot Ph (1977) Operating experience with the tritium and hydrogen extraction plant at Laue-Langevin Institute in Grenoble (France). In: Symposium on Isotope Separation, Montreal, Canada, session 5
• 3. Kitamoto A, Takashima Y (1982) Studies on hydrogen isotope separation by a combined process of chemical exchange method with thermal diffusion method. Bull Res Lab Nuclear Reactors Tokyo Inst Technology 7:211–229
• 4. Leger D, Dirian G, Roth E (1970) Detritiation de l’eau lourde des reacteurs nucleaires. Energie Nucleaire 12;2:135–142
• 5. Mittelhauser HM, Todes G (1964) Vapor-pressure relationship up to the critical point of H2, D2, T2 and their diatomic combinations. Cryogenics 4:368–380
• 6. Reinhold G (1963) Theorie und Berechnung der Formfaktoren von Thermodiffusions-Kolonnen. Z Physik Chem 224:384–418
• 7. Shimizu M (1980) Extraction method of tritium. Canadian Patent 1079490
• 8. Shimizu M, Wada T (1978) Removal and enrichment of tritium in light water. In: Nuclex-78, Basel, pp B2/4
• 9. Shimizu M, Kiyota S, Ninomiya R (1992) Hydrogen isotope enrichment by hydrophobic Pt-catalyst in Japan and western countries. In: Proc Int Symposium Isotope Separation and Chemical Exchange Uranium Enrichment, Tokyo, Japan, pp 56–73
• 10. Vasaru G, Muller G, Reinhold G, Fodor T (1969) Theory of the thermal diffusion column, and Appendix Table 3A. In: Thermal Diffusion Column. VEB Deutscher Verlag der Wissenschaften, Berlin, pp 44–48, 172