Conversion of ethanol to propylene over HZSM-5(Ga) co-modified with lanthanum and phosphorous
Applied Catalysis A: General 417 巻
137-144 頁
2012 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Conversion of ethanol to propylene over HZSM-5(Ga) co-modified with lanthanum and phosphorous
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| 作成者 |
Furumoto Yoshiyasu
Ide Yusuke
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| 収録物名 |
Applied Catalysis A: General
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| 巻 | 417 |
| 開始ページ | 137 |
| 終了ページ | 144 |
| 抄録 |
Conversion of ethanol to propylene was carried out over HZSM-5(Ga) co-modified with lanthanum and phosphorous (La/P/HZSM-5(Ga)). The propylene yield was strongly dependent on both the La/Ga and P/Ga ratios, and the highest value of ca.29 C-% was obtained at a P/Ga ratio of 1 and a La/Ga ratio of 0.4. FT-IR, P-31 MAS NMR, and Ga-71 MAS NMR measurements demonstrate that the introduced lanthanum reacts with the pre-introduced phosphorous to regenerate some of Bronsted acid sites (Si(OH)Ga), and accordingly, the Bronsted acid sites are homogeneously distributed within the zeolite framework. In addition, the catalytic stability as well as the catalytic activity of HZSM-5(Ga) was effectively enhanced by co-modification with lanthanum and phosphorous because of the suppression of carbonaceous deposition and elimination of gallium from the zeolite framework.
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| 著者キーワード |
Ethanol
Propylene
ZSM-5
Phosphorous
Lanthanum
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| NDC分類 |
生物科学・一般生物学 [ 460 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
Elsevier Science BV
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| 発行日 | 2012 |
| 権利情報 |
(c) 2012 Elsevier Inc. All rights reserved.
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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] 0926-860X
[DOI] 10.1016/j.apcata.2011.12.034
[NCID] AA10821202
[DOI] http://dx.doi.org/10.1016/j.apcata.2011.12.034
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