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ジルコニウム合金上のメタン分解動力学
https://doi.org/10.15099/00006495
https://doi.org/10.15099/00006495bc7fde2e-d80e-412c-be10-5e9346ac09ed
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-10-03 | |||||
タイトル | ||||||
タイトル | ジルコニウム合金上のメタン分解動力学 | |||||
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 | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15099/00006495 | |||||
ID登録タイプ | JaLC | |||||
著者 |
松山, 政夫
× 松山, 政夫× 渡辺, 国昭× 洲, 亘 |
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著者別名 | ||||||
姓名 | Watanabe, Kuniaki | |||||
著者別名 | ||||||
姓名 | Shu, W. | |||||
著者別名 | ||||||
姓名 | Matsuyama, Masao | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | Kinetics of Methane Decomposition over Zr-Ni Alloys | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The decomposition of methane over Zr, Zr4Ni and Zr2 and Zr2Ni was investigated to develop highly active materials for capturing tritiated methane inevitably formed in tritium handling systems. The entire decomposition or absorption curves, however, could not been described by any simple kinetic equations appearing in the literature. The present paper describes verification of plausible kinetic equations reproducing the observed absorption curves, assuming a reaction mechanism consisting of a progressive removal of hydrogen atoms according to CH4(g) →CH3(a)→ CH2(a)→ CH(a)→ C(a) and its modification including carbon segregation schemes by solving a set of kinetic equations by means of finite difference method, by taking into account of ab-initio calculations of potential energy surfaces by Gaussian 03. It was found that a step-by-step H-deletion model could not generate the experimentally observed absorption curves, but they could be reproduced quite well in the whole reaction range by a modified reaction scheme assuming coagulation of a carbon residue like CH2(a) or CH(a) to carbonaceous deposits, described as CH4(g) →k1 CH3(a)→ k2 CH(a) →k3 C-deposits. It was concluded that the final third step (with a rate constant of k3) governs the overall absorption reactivity (methane consumption beyond 90%) of the materials. | |||||
書誌情報 |
富山大学水素同位体科学研究センター研究報告 = Annual Report of Hydrogen Isotope Research Center, Toyama University 巻 26, p. 1-12, 発行日 2006 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0916-8486 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11841872 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 富山大学水素同位体科学研究センター | |||||
資源タイプ(DSpace) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article |