Preparation method of hydrotreating catalyst
A hydrogenation treatment and catalyst technology, which is applied in the direction of physical/chemical process catalysts, hydrocarbon oil treatment, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of catalyst pore blockage, catalyst deactivation, etc., and achieve guaranteed The effect of activity, prolonging the operation cycle and reducing clogging
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Embodiment 1
[0036] (1) Weigh 300 grams of pseudo-boehmite (made by the aluminum sulfate method, with a dry weight content of 70wt%), 7 grams of carbon black powder, and 1 gram of scallop powder. The aqueous solution of 1 g of acetic acid was mixed and kneaded, extruded, and the molded product was dried at 140°C for 6 hours, and the dried product was calcined at 750°C for 5 hours to obtain a macroporous alumina carrier. The properties of the macroporous alumina carrier are as follows: the specific surface area is 176m 2 / g, the pore volume is 0.81mL / g, and the pore distribution is as follows: the pore volume of the pore diameter less than 8nm accounts for 26% of the total pore volume, the pore volume of the pore diameter of 8-20nm accounts for 31% of the total pore volume, the pore diameter The pore volume of the pores above 100nm accounts for 4% of the total pore volume, and the pores above 1000nm account for 0.8% of the total pore volume.
[0037] (2) Weigh 100 grams of the macroporous a...
Embodiment 2
[0041] Same as Example 1, except step (2) MoO in the active metal impregnating solution 3 The concentration is 2.9g / 100ml, the NiO concentration is 0.83g / 100ml, the amount of active metal impregnation solution is 7.3ml; the amount of ammonium bicarbonate added in step (3) is 265g, the sealing pretreatment temperature is 80°C, and the treatment time is After 4 hours, the heat treatment temperature was 130° C., and the treatment time was 6.5 hours, and the alumina support S-2 was prepared. The properties of the support are shown in Table 1. Step (4) MoO in active metal impregnation solution 3 The concentration was 8.51g / 100ml, and the concentration of NiO was 2.85g / 100ml to prepare hydrotreating catalyst C2. The content of molybdenum oxide in the catalyst was 8.71wt%, and the content of nickel oxide was 2.85wt%.
Embodiment 3
[0043] Same as Example 1, except step (2) MoO in the active metal impregnating solution 3 The concentration is 2.6g / 100ml, the NiO concentration is 1.1g / 100ml, the amount of active metal impregnation solution is 9.1ml; the amount of ammonium bicarbonate added in step (3) is 243g, the heat treatment temperature is 150°C, and the treatment time is 4 hours , prepared alumina carrier S-3, the properties of the carrier are shown in Table 1. Step (4) MoO in active metal impregnation solution 3 The concentration was 8.84g / 100ml, and the concentration of NiO was 2.79g / 100ml to prepare treated catalyst C3. The content of molybdenum oxide in the catalyst was 9.03wt%, and the content of nickel oxide was 2.91wt%.
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