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Demonstration of Passive Tritium Oxidation Using a Hydrophobic Catalytic Recombiner for Detritiation System
https://repo.qst.go.jp/records/48332
https://repo.qst.go.jp/records/4833276bb1950-39c4-4977-8d54-e8c92ff72813
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-09-21 | |||||
| タイトル | ||||||
| タイトル | Demonstration of Passive Tritium Oxidation Using a Hydrophobic Catalytic Recombiner for Detritiation System | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
岩井, 保則
× 岩井, 保則× 枝尾, 祐希× 佐藤, 克美× 岩井 保則× 枝尾 祐希× 佐藤 克美 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Technical reliability of tritium confinement shall be elevated taking hypothetic extraordinary situations occurred in a nuclear fusion facility such as events of fire and loss of electric power fully into consideration in order to enhance public acceptance of a nuclear fusion reactor. Considerable attention has been paid to the research of passive tritium conversion in the research field of detritiation system. Demonstration of detritiation to grasp the dynamic behavior is practically important to enhance the tritium confinement. In this study, passive detritiation of a 12 [m3] container was demonstrated with hydrophobic catalyst packed in a catalytic reactor. Initial tritium concentration in the container was 1.0 [GBq/m3]. The volume of hydrophobic catalyst packed in the passive catalytic reactor was 1000 [cm3]. The flow rate was set to 2.4 [Nm3/h] which is equivalent to atmosphere exchange rate of 5 times per day. The tritium concentration in the container successfully decreased two order magnitude after 23 hours processing. The conversion rate of tritium by passive catalytic reactor was initially 99.1 [%] and it decreased gradually with an increase in processing time. The rate fell to 70.7 [%] after 23 hours processing due mainly to the effect of hydrogen concentration on conversion efficiency. Unreacted amount of tritium passed through the passive catalytic reactor was less than 4.8 [%] of initial tritium amount. We have confirmed that the passive tritium oxidation is feasible with the hydrophobic platinum catalyst even in the presence of moisture. | |||||
| 書誌情報 |
Fusion Science and Technology 巻 72, 号 3, p. 516-522, 発行日 2017-08 |
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| 出版者 | ||||||
| 出版者 | IOP Publishing | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1536-1055 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1080/15361055.2017.1330624 | |||||
