Hydrotreatment catalyst of residue comprising vanadium and its use in a process of residue hydroconversion

摘要

The present invention relates to a catalyst for hydrotreatment of heavy hydrocarbon charges comprising at least one group vib element, at least one element of group viii, phosphorus, at a content ranging from 0,1 and 9% by weight of phosphorus pentoxide, with respect to the total mass of catalyst, vanadium, to a content of between 0,25 to 7% by weight of vanadium pentoxide with respect to the total mass of catalyst; at least one porous refractory oxide support; the said catalyst having the following characteristics: ∘ a total pore volume greater than or equal to 0,3 ml / g;) a macroporous volume, defined as the volume of the pores of diameter greater than 50 nm, less than or equal to 40% of the total pore volume,) a median diameter of mesopores, defined as the pores of diameter between 3,6 and 50 nm, preferably between 5 nm and 36 nm;) a bet surface area at least equal to 120 m2 / g. the present invention also relates to a process for the hydrotreatment of heavy hydrocarbon charges type residues, in a fixed bed and / or in an ebullating bed, using the said catalyst.