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A study on enrichment and volume reduction of tritiated water in a fusion reactor using photocatalysis

Research Project

Project/Area Number 12680493
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Nuclear fusion studies
Research InstitutionKyushu University

Principal Investigator

FUKADA Satoshi  Faculty of Engineering, Kyushu University, Associate professor, 大学院・工学研究院, 助教授 (50117230)

Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 2001: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2000: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywordstritium water / photo catallysis / titanium oxide / fusion reactor / ultraviolet light / distillation / 無電解メッキ / 蒸留法
Research Abstract

It is important to establish a safety process of enrichment or volume reduction of tritiated water for promoting safety of a fusion reactor and public acceptance.Tentative storage of tritium water in a vessel is not final measures. Water distillation needs a large energy and has an economical problem. Titanium oxide (anatase) of photocatalysis is expected to decompose air pollutantor to dissociate water into hydrogen and oxygen. Since there may be a small difference in dissociation energy between light water and heavy or tritiated water, enrichment of tritium in waste water expected to be exhausted from a fusion reactor was experimentally investigated by using a photocatalysis.
In the first year of the present research, we manufactured photocatalyses by means of nonelectrolysis gilding under different conditions of temperature and concentration. The catalysis was manufactured by plating nickel oxide on titanium oxide.Then the photocatalysis dipped in water in a glass cell was put undera … More n ultraviolet light from a xenon lamp. Part of tritiated water dissociated to hydrogen and oxygen on the anatase photocatalysis, and they recombined on nickel oxide. A difference in rate of dissociation and recombination between tritiated water and light water brought a certain enrichment of tritium in non-dissociated water. Since a key to enrich tritiated water by photocatalysis is to manufacture a high-efficient catalyst, many catalyses were tested under various plating conditions. Although.titanium oxides and nickel oxides were working, the yield was comparatively small.
So, in the second year of the present research, another nonelectrolysis gilding in palladium chloride.solution was tested. Tritium enrichment by anatase-palladium catalysis was investigated under ultraviolet light. The yield increased and the isotope separation factor was around 1.1. In order to apply the present method to industrial scale it is necessary to make contact well among solid (catalysis), liquid (water) and gas (vapor, hydrogen and oxygen). A trickle bed system was found to be optimum for maintaining the good contact. It was concluded that the trickle system should be investigated in the next study. Part of the results was presented in scientific journals and the rest will be presented in the near future. Less

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] 深田 智: "気体、液体からのトリチウム回収と除去"プラズマ核融合学会誌. Vol.76. 1036-1043 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Fukada, H.Fujiwara: "Comparison of Chromatographic Methods for Hydrogen Isotope Separation by Pd Beds"Journal of Chromatography A. Vol.898. 125-131 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Fukada, Y.Toyoshima, M.Nishikawa: "Zr_2Fe and Zr(Mn_<0.5>Fe_<0.5>)_2 Particle Beds for Tritium Purification and Impurity Removal in a Fusion Fuel Cycle"Fusion Engineering and Design. Vol.49-50. 805-810 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Fukada: "Generation of Tritiated Methane Using a CuO-A1_4C_3 bed"Journal of Nuclear Science and Technology. Vol.38. 273-277 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Fukada, M.Samsum-Baharin, H.Fujiwara: "Hydrogen Absorption-desorption cycle experiment of Pd-Al_2O_3 pellets"International Journal of Hydrogen Energy. Vol.27. 177-181 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Fujiwara, S.Fukada, M.Nishikawa: "A Study of a New Hydrogen Isotope Separation System Using a Simulated Moving Bed"Separation Science and Technology. Vol.36. 337-348 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 深田 智: "次世代エネルギーへの燃料 水素吸蔵合金による水素同位体の分離技術"(株)エヌ・テイ・エス. 328 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Fukada: "Tritium Purification and Recovery from Gas or Liquid (in Japanese)"Journal of the Japan Society of Plasma Science and Nuclear Fusion Research. Vol. 76. 1036-1043 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Fukada and Y. Fujii: "Thermophoretic Mist Deposition onto a Tube Wall Cooled by Liquid Nitrogen"Separation Science and Technology. Vol. 35. 1455-1466 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Fukada and H. Fujiwara: "Comparison of Chromatographic Methods for Hydrogen Isotope Separation by Pd Beds"Journal of Chromatography A.. Vol. 898. 125-131 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Fukada, Y. Toyoshima and M. Nishikawa: "Zr_2Fe and Zr(Mn_<0.5>Fe_<0.5>)_2 Particle Beds for Tritium Purification and Impurity Removal in a Fusion Fuel Cycle"Fusion Engineering and Design. Vol.49-50. 805-809 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Fujiwara, S. Fukada, M. Samsun-Baharin and M. Nishikawa: "Hydrogen Isotope Separation by Self-Displacement Chromatography Using Palladium Particles"Journal of Nuclear Science and Technology. Vol. 37. 724-726 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Fukada: "Generation of Tritiated Methane Using a CuO-Al_4C_3 bed"Journal of Nuclear Science and Technology. Vol. 38. 273-277 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Fukada, M. Samsum-Baharin and H. Fujiwara: "Hydrogen Absorption-Desorption Cycle Experiment of Pd-Al_2O_3 Pellets"International Journal of Hydrogen Energy. Vol. 27. 177-181 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Fukuda: "Analysis of Oxygen Reduction Rate in a Proton Exchange Membrane Fuel Cell"Energy Conversion and Management. Vol. 42. 1121-1131 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] B. M. Samsun, S. Fukada and H. Fujiwara: "Hydrogen Isotope Absorption Amount and Rate of Pd-Al_2O_3 Pellets"International Journal of Hydrogen Energy. Vol. 26. 225-229 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Fujiwara, S. Fukada and M. Nishikawa: "A study of a New Hydrogen Isotope Separation System Using a Simulated Moving Bed"Separation Science and Technology. Vol. 36. 337-348 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S. Fukada: "Hydrogen Isotope Separation using Hydrogen-Absorbing Alloys"NTS Book Corporation. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 深田 智: "気体、液体からのトリチウム回収と除去"プラズマ核融合学会誌. Vol.76. 1036-1043 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Fukada, H.Fujiwara: "Comparison of Chromatographic Methods for Hydrogen Isotope Separation by Pd Beds"Journal of Chromatography A. Vol.898. 125-131 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Fukada, Y.Toyoshima, M.Nishikawa: "Zr_2Fe and Zr(Mn_<0.5>Fe_<0.5>)_2 Particle Beds for Tritium Purification and Impurity Removal in a Fusion Fuel Cycle"Fusion Engineering and Design. Vol.49-50. 805-810 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Fukada: "Generation of Tritiated Methane Using a CuO-Al_4C_3 bed"Journal of Nuclear Science and Technology. Vol.38. 273-277 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Fukada, M.Samsum-Baharin, H.Fujiwara: "Hydrogen Absorption-desorption cycle experiment of Pd-Al_2O_3 pellets"International Journal of Hydrogen Energy. Vol.27. 177-181 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Fujiwara, S.Fukada, M.Nishikawa: "A Study of a New Hydrogen Isotope Separation System Using a Simulated Moving Bed"Separation Science and Technology. Vol.36. 337-348 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 深田 智: "次世代エネルギーへの燃料 水素吸蔵合金による水素同位体の分離技術"(株)エヌ・テイ・エス. 328 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.FUKADA and Y.FUJII: "Thermophoretic Mist Deposition onto a Tube Wall Cooled by Liquid Nitrogen"Separation Science and Technology. Vol.35. 1455-1466 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.FUJIWARA and S.FUKADA: "4-Column Simulated Moving Bed Process for Hydrogen Isotope Separation"Hydrogen Energy Progress. Vol.XIII. 314-318 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.FUJIWARA,S.FUKADA, et al.: "Hydrogen Isotope Separation by Self-displacement Chromatography Using Palladiam Particles"Journal of Nuclear Science and Technology. Vol.37. 724-726

    • Related Report
      2000 Annual Research Report
  • [Publications] 深田智: "核融合炉内外におけるトリチウムメインテナンスと廃棄物処理 4.気体、液体からのトリチウム回収と除去"プラズマ・核融合学会誌. Vol.76. 1036-1043 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.FUKADA et al.: "Zr_2Fe and Zr(Mn_<0.5>Fe_<0.5>)_2 Particle Beds for Tritium Purification and Impurity Removal in a Fusion Fuel Cycle"Fusion Engineering and Design. Vol.49-50. 805-810 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.FUKADA and H..FUJIWARA: "Comparison of Chromatographic Methods for Hydrogen Isotope Separation by Pd Beds"Journal of Chromatography A. Vol.898. 125-131 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 深田智: "次世代エネルギーへの燃料 水素吸蔵合金による水素同位体の分離技術"(株)エヌ・ティ・エス. 328 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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