The CoO-MoO3-Al2O3 catalyst. IV. Pulse and continuous flow experiments and catalyst promotion by cobalt, nickel, zinc, and manganese

V.H.J. Beer, de, T.H.M. Sint Fiet, van, J.F. Engelen, A.C. van Haandel, M.W.J. Wolfs, C.H. Amberg, G.C.A. Schuit

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

69 Citaten (Scopus)
3 Downloads (Pure)

Samenvatting

The activities of MoO3-Al2O3 catalysts promoted with various amts. of Co, Ni, Zn, and Mn were detd. in pulse and continuous flow expts. for the hydrodesulphurization of thiophene at atm. pressure and 400 Deg. The initial activities of a MoO3-Al2O3 and a CoO-MoO3-Al2O3 catalyst as inferred from pulse expts. are equal. Continuous flow expts. for all catalysts show that the activity decays rapidly and approaches a steady-state level that depends on the promoter and its concn. Max. steady-state activity levels are attained for each of the promoter ions at different metal-to-Mo ratios. Some models are discussed in an attempt to explain the exptl. results. A preliminary investigation of hydrogenation activity of the above-mentioned catalysts is reported. With increasing promoter content a min. for the initial hydrogenation activity is found. Hydrocarbon satn. at the steady-state is comparatively insensitive to the nature of the promoter ion, which may be associated with the sulphiding of the surface.
Originele taal-2Engels
Pagina's (van-tot)357-368
Aantal pagina's12
TijdschriftJournal of Catalysis
Volume27
Nummer van het tijdschrift3
DOI's
StatusGepubliceerd - 1972

Vingerafdruk Duik in de onderzoeksthema's van 'The CoO-MoO3-Al2O3 catalyst. IV. Pulse and continuous flow experiments and catalyst promotion by cobalt, nickel, zinc, and manganese'. Samen vormen ze een unieke vingerafdruk.

Citeer dit