| 摘要 |
A hydroprocessing bulk catalyst is provided. A process to prepare hydroprocessing bulk catalysts is also provided. The use of the bulk catalyst in hydroprocessing oil feedstock is also 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; promoter 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, L, 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 <= l l/(a+b), 0 <= f <= 7(a+b), 0 <= g <= 5(a + b), 0 <= h <= 0.5(a + b). 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° 2-? scale). In one embodiment, the catalyst is prepared by sulfiding at least one Group VIB metal compound and optionally at least one group VIII metal compound with a sulfiding agent forming a catalyst precursor; and mixing the catalyst precursor with a hydrocarbon compound to form the hydroprocessing catalyst composition.
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