Abstract
Electron microprobe analyses are used for characterizing the repartition of vanadium deposited during the hydrodemetallation of vanadyl octaethyl porphyrin on a classical Ni−MoS2-γ-Al2O3 catalyst. It is found that a part of vanadium can displace Ni initially interacting with the MoS2 platelets (Ni MoS phase) and another part is forming a crown as vanadium sulfide around the catalyst particle. The displaced nickel also formed large nickel sulfide crystallites.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Absi-Halabi, A. Stasnislau, D.L. Trimm: Appl. Catal.,92, 193 (1991).
R. Hubaut, C.F. Aissi, S. Dejonghe, J. Grimblot: J. Chim. Phys.,88, 1741 (1991).
S.A. Roth, E.L. Iton, T.H. Fleish, B.L. Megers, C.C. Marshall, N.N. Delgass: J. Catal.,108, 214 (1987).
S. Dejonghe, R. Hubaut, T. Des Courières, J. Grimblot: Appl. Catal.,61, L9 (1990).
F. Melo Faus, P. Grange, B. Delmon: Appl. Catal.,11, 281 (1984).
CH. Kordulis, F. Melo Faus, B. Delmon: Appl. Catal.,23, 367 (1986).
B.J. Smith, J. Wei: J. Catal.,132, 1 (1991).
S. Dejonghe, R. Hubaut, J. Grimblot, J.P. Bonnelle, T. Des Courière, D. Faure: Catal. Today,7, 569 (1990).
B.J. Smith, J. Wei: J. Catal.,132, 21 (1991).
R. Agrawal, J. Wei: Ind. Eng. Chem. Process. Des. Dev.,23, 515 (1984).
R.A. Ware, J. Wei: J. Catal.,93, 100 (1985).
H. Topsøe, B.S. Clausen: Appl. Catal.,25, 275 (1986).
S. Kasztelan, L. Jalowiecki, A. Wambeke, J. Grimmblot, J.P. Bonnelle: Appl. Catal.,13, 127 (1984); Bull. Soc. Chim. Bel.,96, 1003 (1987).
Unpublished Results.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hubaut, R., Dejonghe, S., Grimblot, J. et al. HDM of the vanadyl octaethylporphyrin on MoS2-based catalysts: Nature and repartition of the vanadium deposit. React Kinet Catal Lett 51, 9–17 (1993). https://doi.org/10.1007/BF02062472
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02062472