Steam reforming of CH4 over Ni-Ru catalysts supported on Mg-Al mixed oxide
Topics in Catalysis 42-43 巻 1-4 号
471-474 頁
2007-05 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Steam reforming of CH4 over Ni-Ru catalysts supported on Mg-Al mixed oxide
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| 作成者 |
Ohi Takenori
Miyata Takeshi
Shiraga Masato
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| 収録物名 |
Topics in Catalysis
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| 巻 | 42-43 |
| 号 | 1-4 |
| 開始ページ | 471 |
| 終了ページ | 474 |
| 抄録 |
Ni0.5/Mg2.5(Al)O catalyst prepared from hydrotalcite precursors showed high and stable activity in the CH4 steam reforming, but was severely deactivated in the daily start-up and shut-down (DSS) operation under steam purging. The addition of Ru drastically improved the behavior of Ni0.5/Mg2.5(Al)O catalyst for the DSS operation. During the wet Ru loading on the Ni0.5/Mg2.5(Al)O catalyst, the reconstitution of hydrotalcite took place by "memory effect," resulting in the formation of Ru-Ni alloy as well as the strong interaction between Ru and Ni after the calcination followed by reduction. This provided the catalyst with high sustainability probably by suppressing the oxidation of Ni metal by steam by hydrogen spillover from Ru. Only 0.05 wt% of Ru loading was enough to effectively suppress the deactivation.
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| 著者キーワード |
steam reforming
CH4
H2 production
Ru-Ni/Mg(Al)O catalyst
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| NDC分類 |
化学工業 [ 570 ]
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| 言語 |
英語
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| 資源タイプ | 会議発表論文 |
| 出版者 |
Springer/Plenum Publishers
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| 発行日 | 2007-05 |
| 権利情報 |
Copyright (c) 2007 Springer "The original publication is available at www.springerlin.com"
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| 出版タイプ | Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1022-5528
[DOI] 10.1007/s11244-007-0227-6
[NCID] AA1103796X
[DOI] http://dx.doi.org/10.1007/s11244-007-0227-6
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