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Investigation of generation of tritiated methane and processing by detritiation system in fusion reactor
https://repo.qst.go.jp/records/80549
https://repo.qst.go.jp/records/80549556c316a-a257-4d51-b18c-5dddc54c4edd
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-09-24 | |||||
| タイトル | ||||||
| タイトル | Investigation of generation of tritiated methane and processing by detritiation system in fusion reactor | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Edao, Yuuki
× Edao, Yuuki× Akiko, Kondo× Asahara, Hiro× Sato, Katsumi× Iwai, Yasunori× Edao, Yuuki× Akiko, Kondo× Asahara, Hiro× Sato, Katsumi× Iwai, Yasunori |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Detritiation system (DS) is the key system to ensure safety of a fusion reactor. DS must be designed to make sure of detritiation when an extraordinary event such as fire happens. DS comprises catalytic reactors to oxidize tritium and a system for removal of tritiated vapor. One of chemical components of tritium to be oxidized by the catalytic reactors is tritiated methane. Tritiated methane is oxidized by a high temperature reactor at 773K generally. Assuming that an accidental release of tritium and production of hydrocarbons by combustion of cables in case of fire occurs simultaneously, tritiated methane should be oxidized at lower temperature from the viewpoint of mitigation for temperature runaway of a catalytic reactor by heat of reaction of hydrocarbons combustion and tritium permeation through a catalytic reactor of DS. In addition, there is concern generation of tritiated methane by the reaction between tritium and methane in a catalytic reactor at low temperature. In the present study, we investigated experimentally a method of processing tritiated methane by a catalytic reactor at low temperature. Our experimental investigation indicated follows: 1) a generation of tritiated methane was sufficiently small; 2) tritiated methane could be oxidized below 773K by optimization of catalyst. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 31st Symposium on Fusion Technology (SOFT 2020) | |||||
| 発表年月日 | ||||||
| 日付 | 2020-09-23 | |||||
| 日付タイプ | Issued | |||||
