| 摘要 |
<p>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.</p> |
