Hydroprocessing bulk catalyst and uses thereof
AssigneeChevron U.S.A. Inc.
InventorsOleg Mironov, Alexander E. Kuperman
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Abstract
An improved hydroprocessing catalyst having improved morphology/dispersion characteristics is provided. The hydroprocessing catalyst has the formula (Mt)a(Lu)b(Sv)d(Cw)e(Hx)f(Oy)g(Nz)h, wherein M is at least one group VIB metal; L is optional and if present, L is at least one Group VIII non-noble metal; t, u, v, w, x, y, z representing the total charge for each of the components (M, X, S, C, H, O and N, respectively); ta+ub+vd+we+xf+yg+zh=0; 0=<b and 0=<b/a=<5, (a+0.5b)<=d<=(5a+2b), 0<=e<=11(a+b), 0<=f<=7(a+b), 0<=g<=5(a+b), 0<=h<=0.5(a+b). The catalyst is prepared by a process in which at least a sulfur additive is added to the sulfidation process in forming the catalyst precursor.
Claims33
A catalyst composition having a formula (Mt)a(Lu)b(Sv)d(Cw)e(Hx)/Oy)g(Nz)h, wherein M is at least one group VIB metal;
- L is at least a promoter metal selected from a non-noble Group VIII metal, a Group VIIIB metal, a Group VIB metal, a Group IVB metal, and a Group IIB metal;
- t, u, v, w, x, y, z, each representing total charge for each of:
- M, L, S, C, H, O and N, respectively;
- ta+ub+vd+we+xf+yg+zh=0;
- b>=0, 0=<b/a=<5, (a+0.5b)<=d<=(5a+2b), 0<e<=11(a+b)0<=f<=7(a+b), 0<=g<=5(a+b), 0<=h <=0.5(a+b), wherein the catalyst has an X-ray powder diffraction pattern with at least one broad diffraction peak at any of Bragg angles:
- 8 to 18°, 32 to 40°, and 55 to 65°(from 0 to 70° 2θ scale) and wherein the catalyst is prepared by a process in which at least at least a sulfur additive is employed in the preparation of the catalyst.
Dependencies are inferred from the claim text.