CATALYTIC SYSTEM, PROCESS FOR THE PREPARATION OF SAID SYSTEM AND HYDROTREATMENT PROCESS USING SAID SYSTEM

摘要

The catalytic system comprising a nucleus containing a supported hydrotreatment, hydrogenation and/or cracking catalyst or a carrier selected from an amorphous silico-aluminate, a crystalline silico-aluminate and/or an alumina characterized in that the surface of said nucleus is partially or totally covered by a layer of molybdenite. The relative preparation process can be carried out starting from the nucleus containing the supported catalyst or carrier, depositing, on the surface of said nucleus, a molybdenite either preformed or generated in situ following the addition of an oil-soluble precursor of molybdenum so as to partially or totally cover it with a layer of molybdenite.