TiO2-supported Mo model catalysts: Ti as promoter for thiophene HDS?

The combination of thiophene hydrodesulfurization (HDS) activity measurements and X-ray photoelectron spectroscopy on flat model systems of sulfided HDS Mo catalysts showed that sulfided Ti-species can act as a promoter in the same way as Co and Ni, although less effectively. This explains the highe...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Catalysis letters 2002-04, Vol.79 (1-4), p.149-155
Hauptverfasser:	COULIER, L, VAN VEEN, J. A. R, NIEMANTSVERDRIET, J. W
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum oxide Catalysis Catalysts Catalytic reactions Chemistry Exact sciences and technology General and physical chemistry Hydrodesulfurization Molybdenum Nickel Photoelectrons Selectivity Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Titanium Titanium dioxide
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The combination of thiophene hydrodesulfurization (HDS) activity measurements and X-ray photoelectron spectroscopy on flat model systems of sulfided HDS Mo catalysts showed that sulfided Ti-species can act as a promoter in the same way as Co and Ni, although less effectively. This explains the higher thiophene HDS activity and hydrogenation selectivity of Mo/TiO2 compared with Mo/Al2O3, while for Ni-promoted Mo catalysts the difference between the two supports is negligible.
ISSN:	1011-372X 1572-879X
DOI:	10.1023/A:1015312509749