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Abstract

A catalyst precursor composition and methods for making such a catalyst precursor are disclosed. The catalyst precursor comprises at least a promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, having an oxidation state of +2 or +4, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. In one embodiment, the catalyst precursor is of the formula A_v[(M^P) (OH)_x (L)ⁿ_y]_z (M^VIBO₄), wherein A is one or more monovalent cationic species, M^P is selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, L is one or more oxygen-containing ligands, M^VIB is at least a Group VIB metal, M^P:M^VIB has an atomic ratio between 100:1 and 1:100. In one embodiment, catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In a hydroconversion process at a hydrogen partial pressure of ˜450 psig, the catalyst a 700° F.+ conversion rate of at least 50% of the 700° F.+ conversion results gives obtained under comparable conditions and with a hydrogen partial pressure of 600 psig.

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First Claim