Hydrodesulfurization (HDS) poisoning by vanadium compounds: EPR and metal solid NMR analysis

MJ Ledoux, O Michaux, S Hantzer, P Panissod…

Index: Ledoux, Marc J.; Michaux, Olivier; Hantzer, Sylvain; Panissod, Pierre; Petit, Pierre; et al. Journal of Catalysis, 1987 , vol. 106, p. 525 - 537

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Citation Number: 22

Abstract

Abstract The HDS activity of a commercial NiMo catalyst has been followed versus the amount of vanadium added to it, either by an oxidic procedure before the sulfidation step or by a sulfided route, using a highly soluble vanadyl porphyrin simulating the industrial process on the presulfided catalyst. An oxidative regeneration followed by a resulfidation transformed these porphyrinpoisoned catalysts into the oxidic preparation family. At the ...