このエントリーをはてなブックマークに追加
ID 34804
本文ファイル
著者
Furumoto, Yoshiyasu
Ide, Yusuke
キーワード
Ethanol
Propylene
ZSM-5
Phosphorous
Lanthanum
NDC
生物科学・一般生物学
抄録(英)
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.
掲載誌名
Applied Catalysis A: General
417巻
開始ページ
137
終了ページ
144
出版年月日
2012
出版者
Elsevier Science BV
ISSN
0926-860X
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
(c) 2012 Elsevier Inc. All rights reserved.
関連情報URL
部局名
工学研究科