New catalyst comprising at least one element of group VIB, optionally at least one element of group VIII, phosphorous and at least one aluminosilicate oxide support, useful for hydrotreating heavy hydrocarbon feedstocks

摘要

Catalyst comprising at least one element of group VIB, optionally at least one element of group VIII, phosphorous and at least one aluminosilicate oxide support (prepared by incorporation of a compound of silicon oxide on an alumina matrix) with a silica content of at least 1-10 wt.%, is new. The catalyst has a total pore volume of >= 0.3 ml/g, a macropore volume of, defined as the volume of pores of diameter of greater than 50 nm, = 40 vol.%, mesopores median diameter (pores of diameter of 3.6-50 nm) of 8-36 nm and Brunauer-Emmett-Teller surface area of at least 160 m 2>/g. Independent claims are included for: (1) hydrotreating heavy hydrocarbon feedstocks including atmospheric residues, vacuum residues from direct distillation, deasphalted oils, and/or residues from conversions process such as coking and hydroconversion in fixed-, ebullated- or moving-bed, using catalyst; and (2) a process for hydrotreating residue in a fixed bed comprising at least (a) a hydrodesulfurization step and (b) a hydrodemetallization step, where the steps (a) and (b) are performed using catalyst.