フルテキストファイル
著者
Suganuma Satoshi Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University 研究者総覧 KAKEN
Nakamura Koshiro Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
Okuda Akihito Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
Katada Naonobu Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University 研究者総覧 KAKEN
キーワード
ZSM-5
Ni loading
toluene disproportionation
acidic property
synergy effect
抄録
Impregnation of various heteroelements on the ZSM-5 zeolite was applied to improvement of the catalytic activity in toluene disproportionation. Nickel loaded on ZSM-5 (Ni/ZSM-5) exhibited higher catalytic activity (toluene conversion) and lower benzene / xylene ratio (closer to the stoichiometry, meaning low rate of side reaction) than H-ZSM-5 zeolite. The Ni/ZSM-5 with Ni/Al = 0.6 showed the maximum in catalytic activity, and excess Ni loading caused decrease in the conversion and increase in the benzene / xylene ratio due to decrease of acid amount and acceleration of dealkylation, respectively. The detailed analysis of acidic property by means of ammonia IRMS-TPD method showed that the Ni loading generated Lewis acid sites on the zeolite. The synergy of Brønsted and Lewis acid sites, ascribed to Si-OH-Al and Ni species, respectively, is suggested to give the high activity of desired reaction.
出版者
Elsevier
資料タイプ
学術雑誌論文
外部リンク
ISSN・ISBN
24688231
掲載誌名
Molecular catalysis
最新掲載誌名
Molecular catalysis
435
開始ページ
110
終了ページ
117
発行日
2017
出版者DOI
著者版フラグ
著者版
著作権表記
Copyright © 2017 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
掲載情報
This work was published by Elsevier: Suganuma, S., Nakamura, K., Okuda, A., Katada, N., Enhancement of Catalytic Activity for Toluene Disproportionation by Loading Lewis Acidic Nickel Species on ZSM-5 Zeolite, Molecular catalysis. 2017, 435, 110-117. doi: 10.1016/j.mcat.2017.03.029
部局名
工学部・工学研究科
言語
英語