| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2008-11-14 |
| タイトル |
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|
タイトル |
Comparison by ³⁵S radiotracer methods of hydrodesulfurization behavior for molybdenum, cobalt-molybdenum and nickel-molybdenum catalysts supported on γ-alumina and high specific surface area titania |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| キーワード |
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主題Scheme |
Other |
|
主題 |
Hydrodesulfurization |
| キーワード |
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|
主題Scheme |
Other |
|
主題 |
Dibenzothiophene |
| キーワード |
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|
主題Scheme |
Other |
|
主題 |
γ-Alumina |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
High surface area titania |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Nickel molybdenum catalyst |
| キーワード |
|
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主題Scheme |
Other |
|
主題 |
Radiotracer method |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Ishihara, Atsushi
Dumeignil, Franck
Morimoto, Kazuya
Qian, Eika W.
Kabe, Toshiaki
Inoue, Shinichi
Muto, Akihiro
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
The differences between MoS₂, CoMoS and NiMoS HDS catalysts supported on γ-alumina and high SSA titania are investigated based on the results of [³⁵S]DBT HDS experiments. Previous studies of MoS₂ and CoMoS are reviewed, discussed and compared with new results for NiMoS. Introduction of Ni or Co to MoS₂/Al₂O₃ catalysts classically yields a significant increase in HDS performance. Irrespective of the promoter, an increase in S₀, the number of labile sulfur atoms, is observed. In contrast, kRE, the H₂S liberation rate constant, plotted as a function of the Ni/Mo ratio, presents a volcano profile on Ni-promoted catalysts, but kRE reaches a plateau from low Co/Mo ratios on Co-promoted catalysts. The 'TiMoS' phase, which is formed in-situ during HDS on Mo/TiO₂ catalysts, promotes sulfur mobility and makes Mo/TiO₂ catalysts more active than Mo/Al₂O₃ catalysts. Nevertheless, CoMo/TiO₂ catalysts are less active than CoMo/Al₂O₃ catalysts because further promotion of 'TiMoS' phase with Co might yield excessive weakening of the metal-sulfur bonds, and/or some Co atoms might be 'lost' in the TiO₂ matrix without interacting with MoS₂. In contrast, introduction of Ni to Mo/TiO₂ catalysts yields significant increases in both kRE and S0. The NiMo/TiO₂ catalysts exhibit HDS performances close to those of Al₂O₃-supported catalysts. Clearly catalytic behavior over Co- and Ni-promoted catalysts is different. |
| 書誌情報 |
Journal of the Japan Petroleum Institute
巻 50,
号 3,
p. 154-161,
発行日 2007-07-01
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| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1346-8804 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11590615 |
| DOI |
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関連タイプ |
isIdenticalTo |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
10.1627/jpi.50.154 |
| フォーマット |
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内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
| 著者版フラグ |
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出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 日本十進分類法 |
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|
主題Scheme |
NDC |
|
主題 |
575 |
| 出版者 |
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出版者 |
Japan Petroleum Institute |
| 関係URI |
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関連名称 |
http://www.jstage.jst.go.jp/article/jpi/50/3/50_154/_article |
| ノート |
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|
値 |
出版者版電子ジャーナルあり |
| 資源タイプ（三重大） |
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|
値 |
Journal Article / 学術雑誌論文 |
40A7884.pdf (637.9 kB)
