Catalytic Performance of Noble Metals Supported on Mesoporous Silica MCM-41 for Hydrodesulfurization of Benzothiophene

doi:info:doi/10.1627/jpi.52.42

Catalytic Performance of Noble Metals Supported on Mesoporous Silica MCM-41 for Hydrodesulfurization of Benzothiophene 利用統計を見る

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アイテムタイプ	学術雑誌論文 / Journal Article.
言語	英語
キーワード	Hydrodesulfurization, Benzothiophene, Noble metal catalyst, MCM-41, Bifunctional catalysis
その他（別言語等）のタイトル	ベンゾチオフェンの水素化脱硫反応に対するメソポーラスシリカMCM-41担持貴金属の触媒特性
著者	KANDA Yasuharu ( 研究者リゾルバーID: 1000070447085 ) SEINO Akio KOBAYASHI Takao UEMICHI Yoshio ( 研究者リゾルバーID: 1000090168659 ) SUGIOKA Masatoshi ( 研究者リゾルバーID: 1000080001329 )
著者（別表記）	神田康晴清野章男小林隆夫上道芳夫杉岡正敏
室蘭工業大学研究者データベースへのリンク	神田康晴（KANDA Yasuharu）上道芳夫（UEMICHI Yoshio）
抄録	The catalytic performances of noble metals (Pt, Rh, Pd, Ru) supported on mesoporous silica MCM-41 were investigated for the hydrodesulfurization (HDS) of benzothiophene (BT). The order of HDS activities of noble metal/MCM-41 catalysts was Pt>Rh>Pd>>Ru. Pt/MCM-41 catalyst showed high HDS activity, which was higher than that of commercial CoMo/Al_2O_3 catalyst. The supported noble metal catalysts were characterized by TEM, XRD, hydrogen adsorption and benzene hydrogenation. The order of dispersion of noble metal on MCM-41 was Rh>Pt>Pd>>Ru, which was not the same as that of HDS activities. On the other hand, the order of the activities of noble metal/MCM-41 catalysts for benzene hydrogenation was Pt>Rh>Pd>Ru. The hydrogenation activity of Pt/MCM-41 catalyst was regenerated after H_2S treatment, but the activities of other catalysts were not regenerated. Thus, high hydrogenation activity and sulfur tolerance are important factors to prepare highly active noble metal/MCM-41 catalysts. Pt/MCM-41 catalyst showed remarkably high and stable activity for the HDS of BT, but Pt/SiO_2 catalyst, with similar Pt dispersion on MCM-41, showed low activity which decreased with time on stream. Since MCM-41 showed higher acidity than SiO_2, hydrogenation activity and sulfur tolerance of Pt/MCM-41 catalyst were higher than those of Pt/SiO_2 catalyst. The results of FT-IR analysis indicated that the strength of interaction between BT and MCM-41 was stronger than that of SiO_2, suggesting that both acid sites of MCM-41 and Pt particles in the Pt/MCM-41 catalyst act as active sites for the HDS of BT. Furthermore, FT-IR spectra of BT adsorbed on Pt/MCM-41 revealed that BT interacts with the silanol group on the MCM-41 surface rather than the Pt surface. Therefore, we concluded that the high HDS activity of Pt/MCM-41 catalyst could be attributed to the high hydrogenation activity of Pt and the acidity of the support.
雑誌名	Journal of the Japan Petroleum Institute
巻	52
号	2
ページ	42 - 50
発行年	2009-05-01
出版者	石油学会
出版者版へのリンク	10.1627/jpi.52.42
DOI	info:doi/10.1627/jpi.52.42
論文ID（NAID）	http://ci.nii.ac.jp/naid/10024924097
日本十進分類法	570
ISSN	13468804
書誌レコードID	AA11590615 AA12022753
権利	Copyright 2009 石油学会　ダウンロードを含むこの著作物の利用は、著作権法の私的使用及び引用の範囲に限り認められます。その範囲外の利用については、石油学会の承諾が必要です。
著者版フラグ	publisher
フォーマット	application/pdf

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Catalytic Performance of Noble Metals Supported on Mesoporous Silica MCM-41 for Hydrodesulfurization of Benzothiophene 利用統計を見る

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