Hydrodesulfurization of 4,6-dimethyldibenzothiophene over promoted (Ni,P) alumina-supported molybdenum carbide catalysts: activity and characterization of active sites

The effect of phosphorus and nickel on alumina-supported molybdenum oxycarbides has been studied. Catalysts were characterized by elemental analysis, X-ray diffraction, CO chemisorption, transmission electron microscopy, energy-dispersive spectroscopy, X-ray photoelectron spectroscopy, and infrared...

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Veröffentlicht in:	Journal of catalysis 2004-01, Vol.221 (2), p.365-377
Hauptverfasser:	Manoli, J.-M., Da Costa, P., Brun, M., Vrinat, M., Maugé, F., Potvin, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	4,6-DMDBT Catalysis Chemical Sciences Chemistry Exact sciences and technology FTIR spectroscopy General and physical chemistry Hydrodesulfurization Molybdenum carbide Nickel Phosphorus Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry XPS
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Zusammenfassung:	The effect of phosphorus and nickel on alumina-supported molybdenum oxycarbides has been studied. Catalysts were characterized by elemental analysis, X-ray diffraction, CO chemisorption, transmission electron microscopy, energy-dispersive spectroscopy, X-ray photoelectron spectroscopy, and infrared spectroscopy. Propene and tetralin hydrogenation was used to probe the activity of the doped materials. Hydrodesulfurization of 4,6-dimethyldibenzothiophene (613 K and 4 MPa total pressure) was investigated as a probe for the deep HDS of diesel fuel. For contact times ranging from 0 to 0.4 s (conversion
ISSN:	0021-9517 1090-2694
DOI:	10.1016/j.jcat.2003.08.011