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Study on the role of platinum in PtMo/Al2O3 for hydrodesulfurization of dibenzothiophene
Wang, J; Li, WZ; Perot, G; Lemberton, JL; Yu, CY; Thomas, C; Zhang, YZ; Li, C; Xin, Q
刊名SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS
1997
112页:171-178
收录类别ISTP ; SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]CATALYSTS ; HYDRODENITROGENATION ; SELECTIVITY ; ALUMINA
英文摘要Hydrodesulfurization (HDS) of dibenzothiophene (DBT) over PtMo/Al2O3 was studied in the presence of H2S. Pt was found to be an effective promoter for this reaction and the Pt-containing catalyst was sulfur tolerance. Data of the H-2-D-2 exchange revealed that both the amount of retained hydrogen and the initial rate of H-D exchange on the sulfided catalyst were increased by the introduction of a slight amount of Pt into the catalyst, and corresponded very well to the catalytic activities for HDS. The reduction and sulfidation of Mo sites was also facilitated very much by Pt, which was found by the results of the pulse reduction and sulfidation technique. It is proposed that, during the pretreatment of PtMo/Al2O3, H-2 is first dissociated into hydrogen atoms on Pt sites, which then spillover onto Mo sites, providing a large amount of coordinately unsaturated Mo sites for the HDS reaction, and resulting in the higher HDS activity than the unpromoted one.
语种英语
WOS记录号WOS:000071952700018
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142817
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Poitiers, URA CNRS 350, Catalyse Chim Organ Lab, F-86022 Poitiers, France
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Wang, J,Li, WZ,Perot, G,et al. Study on the role of platinum in PtMo/Al2O3 for hydrodesulfurization of dibenzothiophene[J]. SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS,1997,112:171-178.
APA Wang, J.,Li, WZ.,Perot, G.,Lemberton, JL.,Yu, CY.,...&Xin, Q.(1997).Study on the role of platinum in PtMo/Al2O3 for hydrodesulfurization of dibenzothiophene.SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS,112,171-178.
MLA Wang, J,et al."Study on the role of platinum in PtMo/Al2O3 for hydrodesulfurization of dibenzothiophene".SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS 112(1997):171-178.
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