Hydrodenitrogenation of Pyrrole over Silica-supported Ruthenium Phosphide Catalyst
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- Kanda Yasuharu
- Applied Chemistry Research Unit, College of Environmental Technology, Graduate School of Engineering, Muroran Institute of Technology
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- Araki Toru
- Div. of Applied Sciences, Graduate School of Engineering, Muroran Institute of Technology
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- Sugioka Masatoshi
- Aeronautics and Astronautics Unit, College of Design and Manufacturing Technology, Graduate School of Engineering, Muroran Institute of Technology
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- Uemichi Yoshio
- Applied Chemistry Research Unit, College of Environmental Technology, Graduate School of Engineering, Muroran Institute of Technology
Bibliographic Information
- Other Title
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- シリカ担持リン化ルテニウム触媒によるピロールの水素化脱窒素反応
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Abstract
Catalytic properties of ruthenium phosphide (Ru2P) supported on silica for hydrodenitrogenation (HDN) of pyrrole were compared with those of Ru/SiO2 catalyst to clarify the effect of phosphidation. At higher W/F (652 g h mol−1), pyrrole conversion over Ru/SiO2 catalyst remarkably decreased with increasing reduction temperature. In contrast, pyrrole conversion over P-added Ru (Ru–P/SiO2) catalyst at the same W/F was enhanced with increasing reduction temperature due to Ru2P formation. This activity was higher than that of sulfided NiMoP/Al2O3 catalyst but lower than that of Ru/SiO2 catalyst at the same W/F. At lower W/F (130-391 g h mol−1), Ru–P/SiO2 catalyst showed higher activity and stability for pyrrole HDN than Ru/SiO2 catalyst. The cracking products (almost all CH4) were formed over Ru/SiO2 catalysts and butanes were formed over Ru–P/SiO2 catalysts. The results of CO adsorption and TEM images revealed that the particle size of Ru–P/SiO2 catalyst was smaller than that of Ru/SiO2 catalyst. The TOF of Ru–P/SiO2 catalyst increased with reduction temperature, and this TOF was lower than that of Ru/SiO2 catalyst. After HDN reaction, the peak of particle size distribution for Ru/SiO2 catalyst shifted to larger diameter, whereas that of Ru–P/SiO2 catalyst remained the same. Therefore, the stable activity of Ru–P/SiO2 catalyst can be explained by excess phosphorus species acting to stabilize Ru2P particles.
Journal
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- Journal of the Japan Petroleum Institute
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Journal of the Japan Petroleum Institute 56 (2), 94-101, 2013
The Japan Petroleum Institute
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Details 詳細情報について
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- CRID
- 1390001205188646400
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- NII Article ID
- 10031166890
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- NII Book ID
- AA11590615
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- COI
- 1:CAS:528:DC%2BC3sXjvVOqurk%3D
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- ISSN
- 1349273X
- 13468804
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- NDL BIB ID
- 024307927
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed