| abstract |
Hydrocracking a hydrocarbon feed in the presence of a catalyst comprising an acidic support and an active phase formed from at least one metal from group VIII and at least one metal from group VIB, said catalyst being prepared using a process comprising, in succession:n contacting a pre-catalyst comprising said metal from group VIII, said metal from group VIB and said acidic support with a cyclic oligosaccharide of at least 6α-(1,4)-bonded glucopyranose subunits; contacting the acidic support with a solution containing a precursor of metal from group VIII, a precursor of said metal from group VIB and a cyclic oligosaccharide of at least 6α-(1,4)-bonded glucopyranose subunits; and contacting acidic support with a cyclic oligosaccharide of at least 6α-(1,4)-bonded glucopyranose subunits followed by a second contacting acidic solid with a precursor of metal from group VIII and a precursor of metal from group VIB; drying; heat treatment; sulphurization. |