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Hydrogenation of Ethylene on Tantalum Powder (A. NATURAL SCIENCE)
https://kpu.repo.nii.ac.jp/records/3196
https://kpu.repo.nii.ac.jp/records/3196a2e02a3f-fe05-43ff-8e84-2912ceff99b7
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000079699.pdf (688.1 kB)
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| Item type | [ELS]紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||
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| 公開日 | 2017-02-20 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Hydrogenation of Ethylene on Tantalum Powder (A. NATURAL SCIENCE) | |||||||||||||
| 言語 | en | |||||||||||||
| その他（別言語等） | ||||||||||||||
| その他のタイトル | タンタル粉末によるエチレン水素化反応(A. 理学) | |||||||||||||
| 言語 | ja | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||||
| 著者 |
山口, 克
× 山口, 克
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| 抄録(英) | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | Hydrogen absorption, ethylene adsorption and ethylene hydrogenation have been studied on tantalum powder over the temperature range 200° to 500℃, and the pressure range 50 to 500 torr. Hydrogen absorption isotherms were similar to that of Sieverts' results, and the initial rates were linear to hydrogen pressure. Owing to its small surface area, ethylene adsorption could not be estimated directly. It was, however, deduced that the equilibrium was attained in a short while, as judged by the effect of ethylene preadsorption on the rate of hydrogen absorption. The order of introduction of gases was found to influence the rate of ethylene hydrogenation as follows : Hydrogen first > simultaneous > ethylene first. In the case of introducing hydrogen first, the initial rates were approximately first-order in ethylene, and reached the maximum value as a function of hydrogen pressure. From these results, it was deduced that the rate determining step was similar to that of reactions catalysed by palladium black, namely, the surface reaction between adsorbed by palladium black, namely, the surface reaction between adsorbed ethylene and hydrogen. On tantalum powder, however, it was suggested that there were two types of ethylene adsorption, one of which is so strong that the hydrogen absorption was retarded and would not participate in ethylene hydrogenation. Another was relatively weakadsorption and seemed to be responsible for ethylene hydrogenation. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
ja : 京都府立大学学術報告. 理学・生活科学・福祉学 en : The scientific reports of the Kyoto Prefectural University. Natural science, living science and welfare science 巻 20, p. 5-14, 発行日 1969-11-29 |
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| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AN00062322 | |||||||||||||
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| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0075739X | |||||||||||||
