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Study of multi-column cold trap with highly effective recovery rate of tritium water vapor

Research Project

Project/Area Number 11558058
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section展開研究
Research Field Nuclear fusion studies
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

FUKADA Satoshi  Faculty of Engineering, KYUSHU UNIVERSITY Associate Prof., 大学院・工学研究院, 助教授 (50117230)

Co-Investigator(Kenkyū-buntansha) KOTOH Kenji  Faculty of Engineering, KYUSHU UNIVERSITY Associate Prof., 大学院・工学研究院, 助教授 (50091351)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2000: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1999: ¥3,400,000 (Direct Cost: ¥3,400,000)
Keywordstritium / cold trap / fusion reactor / mist formation / emergency clean-up system / thermophoresis / gas separation membrane / inventory / インベントリ
Research Abstract

It is one of the most important issues to establish processes for tritium safety confinement and a fuel processing loop of a fusion reactor. In conventional processes for the emergency tritium confinement, catalytic oxidation and zeolite adsorption was the main process. Although the process can satisfy the safety rule for handling radioisotopes in Japanese facilities, the removal of tritium in interstitial sites of adsorbent was very difficult, and so it had a disadvantage of an increasae in tritium inventry. Therefore, it is necessary to improve the conventional catalytic oxidation and water adsorption process for the higher safety confinement of tritium gas and tritium compounds.
The polyimede gas separation membrane can make gas volume processed decrease greatly and so make the process simple. In the present study we set up an experimental apparatus which can remove water vapor down to lower than the regulation level of tritium compounds in the environment without any use of adsorben … More t.
In order to recover tritium water vapor down to the regulation level it was necessary to solve the problems of the tritium breakthrough of the cold trap and duct choking by deposition on the surfaces. In the first year of the present research, we found out that the tritium breakthrough was caused by mist generation under homogeneous nucleation. With the setup of a two-stages cooling system, we succeeded in operating it without mist formation, in quantitative estimation of frost formation rate on surfaces and so the time of choking, and finally in overall estimation of tritium removal rate. In the second year, we carried out experiments of the two stages tritium removal system comprising an open-column trap cooled by dry ice and glass-packed cold trap cooled by liquid nitrogen in series. The experimental results were presented in international journals such as Separation Science and Technology. We succeeded in the optimal design of the tritium removal system for an ITER-scale fusion reactor. Less

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [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(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [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)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Fukada and K.Inoue: "Internal Mass Flux through Frost"AIChE J.. Vol.45. 2646-2652 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [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)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Fujiwara,S.Fukada et al.: "Hydrogenating Rates of Twin Columns Packed with Pd and Molecular Sieve with an Alternately Countercurrent Flow for Hydrogen Isotope Separation"International Journal of Hydrogen Energy. Vol.25. 127-132 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.FUKADA and H.FUJIWARA: "Comparison of Chromatographic Methods for Hydrogen Isotope Separation by 〓 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
      2000 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・ティ・エス. 328 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 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
      2000 Final Research Report Summary
  • [Publications] S.Fukada: "Maintenance and Waste Treatment of Tritium Existing in or out of Fusion Reactor 4. Tritium Recovery and Removal from Liquid Blankets (in Japanese)"Journal of Plasma and Fusion Research. Vol.76. 1036-1043 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [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)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.Fukada and K.Inoue.: "Internal Mass Flux through Frost"AIChE J.. Vol.45. 2646-2652 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] H.Fujiwara, S.Fukada et al.: "Hydrogenating Rates of Twin Columns Packed with Pd and Molecular Sieve with an Alternately Countercurrent Flow for Hydrogen Isotope Separation"International J.of Hydrogen Energy. Vol. 25. 127-132 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 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
      2000 Final Research Report Summary
  • [Publications] S.Fukada: "Fuel for Future Energy Separation Technology of Hydrogen Isotopes Using Hydrogen-Absorbing Alloys"N.T.S.Corp.. 328 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 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)

    • 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 Palladium 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
  • [Publications] S. Fukada and K. Inoue: "Internal Mass through Frost"AIChE Journal. 45. 2646-2652 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 藤原裕史、山口康子、深田智: "水素同位体の分離・回収方法及びその装置"公開特許、特開平11-137969. (in press). (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] S. Fukada et al: "Mist formation in a Water Vapor Cold Trap and Evaluation of Its Removal Rate"Journal Nuclear Science and Technology. 35. 198-204 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] S. Fukada et al: "Thermophoretic Mist Deposition onto a Tube Wall Cooled by Liquid Nitrogen"Separation Science Technology. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] S. Fukada et al: "Zr_2Fe and Zr(Mn_<0.5>Fe_<0.5>)_2 Particle Beds for High Purification of Tritium and Impurity Removal in a Fuel Cycle"Proc. The fifth International Sympusium on Fusion Nuclear Technology. (in press). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] H. Fujiwara,S. Fukada et al: "Hydrogenating Rates of Twin Columns Packed with Pd and molecular Sieve with an Alternately Countercurrent Flow for Hydrogen Isotope Separation"International Journal of Hydrogen Energy. 25. 127-132 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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