2014 Fiscal Year Final Research Report
Active control onto the zeolite support over Mo/H-MFI for for highly and durably active MTB catalysts
| Project/Area Number |
24560951
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | Saitama Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TANAKA Tsunehiro 京都大学, 大学院工学研究科, 教授 (70201621)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 天然ガス有効利用 / メタン脱水素芳香族化 / Mo/H-MFI触媒 / 高耐久化 / Mo L殻XANES |
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| Outline of Final Research Achievements |
For highly active Mo/H-MFI and Mo/H-GaAlMFI (partiy Ga-substituted H-MFI in Al/Ga=50-100) catalysts for MTB (Methane to Benzene) reaction, deactivation due to carbon deposition cannot be avoided. For highly active MTB catalyst, active Mo species on MFI-baed supports were characterized by means of Mo L3-edge XANES, and the amount of carbonized species after using as the MTB catalyst was evaluated. In the present study, Mo-V/H-GaAlMFI catalysts in Mo/V=40 and Al/Ga=50-100 show high MTB activity. By Ga-doping onto H-MFI support, formation of Mo2C species is accelerated. For deactivation, it is concluded that excess carbonization to active Mo species can be controlled by Ga-doping onto MFI support, and formation of alpha-Mo2C species can also be act as the inhibition of MTB reaction. By Mo-V co-modification on GaAlMFI supports, both carbon deposition and formation of alpha-Mo2C species is inhibitable and brings about high MTB reactivity.
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| Free Research Field |
触媒化学
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