Hydroprocessing bulk catalyst and uses thereof
A hydroprocessing bulk catalyst is provided. A process to prepare hydroprocessing bulk catalysts is also provided. The hydroprocessing catalyst has the formula (M t ) a (L u ) b (S v ) d (C w ) e (H x ) f (O y ) g (N z ) 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<=11(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-θ 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.
1. A catalyst composition having a formula
(M t ) a (L u ) b (S v ) d (C w ) e (H x ) f (O y ) g (N z ) h , wherein
M is at least a metal selected from group VIB metals,
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,
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),
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;
and 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).
2. The catalyst composition of claim 1 , wherein the catalyst composition is substantially free of promoter metal L.
3. The catalyst composition of claim 2 , wherein b=0.
4. The catalyst composition of claim 3 , wherein the at least one diffraction peak is greater than 2 degrees wide at ½ height.
5. The catalyst composition of claim 1 , wherein the at least one diffraction peak is at Bragg angle of 8 to 18° (from 0 to 70° 2θ scale).
6. The catalyst composition of claim 3 , wherein the diffraction peak at Bragg angle 8 to 18° (from 0 to 70° 2θ scale) is greater than 2 degrees wide at ½ height.
7. The catalyst composition of claim 4 , wherein the diffraction peak at Bragg angle 8 to 18° (from 0 to 70° 2θ scale) is greater than 5 degrees wide at ½ height.
8. The catalyst composition of claim 1 , having a first broad diffraction peak at Bragg angle of 8 to 18° (from 0 to 70° 2θ scale) and a second first broad diffraction peak at Bragg angle of 32 to 40° (from 0 to 70° 2θ scale).
9. The catalyst composition of claim 1 , wherein the catalyst has a median particle size of 0.0005 to 1000 microns.
10. The catalyst composition of claim 1 , wherein the catalyst has an average particle size of 0.3 to 20 μm.
11. The catalyst composition of claim 1 , wherein the catalyst has a pore volume of 0.05-5 ml/g as determined by nitrogen adsorption.
12. The catalyst composition of claim 1 , wherein the catalyst has a pore volume of 0.1-4 ml/g as determined by nitrogen adsorption.
13. The catalyst composition of claim 1 , wherein the catalyst has a surface area of at least 5 m 2 /g.
14. The catalyst composition of claim 1 , wherein M is selected from molybdenum, tungsten, and mixtures thereof and L is selected from nickel, cobalt, and mixture thereof.
15. The catalyst composition of claim 1 , wherein L is selected from nickel, cobalt and combinations thereof, the catalyst is of the formula
(M) a (Ni z Co 1-z ) b (S) d (C) e (H) f (O) g (N) h ,
and wherein 0<z<1.
16. The catalyst composition of claim 1 , wherein M is selected from molybdenum, tungsten, and combinations thereof, the catalyst is of the formula
(Mo z W 1-z ) a (L) b (S) d (C) e (H) f (O) g (N) h ,
and wherein 0<z<1.
17. The catalyst composition of claim 1 , wherein L is selected from Ni, Co, Fe, Zn, Cr, Ti, and combinations thereof, the catalyst is of the formula
(M) a (Ni z Co z Fe z″ Zn z *Cr z*′ Ti z*″ ) b (S) d (C) e (H) f (O) g (N) h , and
wherein 0≦z, z′, z″, z*, z*′, z*″ and (z+z′+z″+z*+z*′+z*″)=1.
18. The catalyst composition of claim 1 , wherein the molar ratio b/a ranges from 0.5 to 2.
19. The catalyst composition of claim 1 , wherein the catalyst further comprises a refractory oxide material which comprises 50 wt. % or more titania, on oxide basis.
20. A catalyst composition having a formula
(M t ) a (L u ) b (S v ) d (C w ) e (H x ) f (O y ) g (N z ) h , wherein
M is selected from molybdenum, tungsten, and mixtures thereof,
L is selected from Ni, Co, Fe, Zn, Cr, Ti, and mixtures thereof,
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),
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;
and wherein the catalyst has an X-ray powder diffraction pattern with a first broad diffraction peak at Bragg angle of 8 to 18° and a second broad diffraction peak at Bragg angle of 32 to 40° (from 0 to 70° 2θ scale).
21. The catalyst composition of claim 20 , where in M is selected from molybdenum, tungsten, and mixtures thereof, and L is selected from nickel, cobalt, and mixtures thereof.