Bulk phase hydrotreating catalyst preparation method
A hydrogenation treatment and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of affecting the distribution of hydrogenation active metals and increasing the pores of catalysts problems such as low capacity and active center density, and achieve the effects of improving ultra-deep hydrodesulfurization performance, reasonable catalyst pore structure, and high active site density
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Embodiment 1
[0045] Dissolve nickel chloride and aluminum chloride solutions in clean water respectively to prepare mixed solution A. The weight concentration of NiO in mixed solution A is 19g / L, Al 2 o 3 The weight concentration is 13g / L. Dissolve ammonium metatungstate and aluminum chloride solution in clean water respectively to prepare a mixed solution B. In mixed solution B, WO 3 The weight concentration is 39g / L, Al 2 o 3The weight concentration is 13g / L. Add ammonia water with a concentration of 10wt% to solution A under stirring, keep the gelling temperature at 60°C, control the pH value at the end of the solution at 7.8, and control the gelling time at 60 minutes to generate slurry I containing nickel and aluminum precipitates. Add 500mL of clean water into the reaction tank, add ammonia water with a concentration of 10wt% and solution B into the reaction tank concurrently, keep the gelling temperature at 60°C, and control the pH value at 7.8 during the concurrent gelation rea...
Embodiment 2
[0047] According to the method of Example 1, according to the component content ratio of catalyst B in Table 1, nickel nitrate, aluminum nitrate, zirconium oxychloride solution is added to the dissolution tank 1, and the working solution A is prepared, and the solution A is added to the dissolution tank 2. Prepare working solution B with aluminum nitrate and ammonium metatungstate. Add ammonia water with a concentration of 12wt% to solution A under stirring, keep the gelling temperature at 45°C, control the pH value at 8.0 at the end, and control the gelling time at 50 minutes to generate slurry I containing nickel and aluminum precipitates. Add 600mL of clean water into the reaction tank, add ammonia water with a concentration of 12wt% and solution B into the reaction tank concurrently, keep the gelling temperature at 50°C, and control the pH value at 7.6 during the concurrent gelation reaction process, and control the gelation time At 60 minutes, slurry II containing tungste...
Embodiment 3
[0049] According to the method for embodiment 1, press the component content ratio of catalyst C in table 1, add nickel chloride, aluminum chloride, phosphoric acid solution in dissolving tank 1, prepare working solution A, add chlorine in dissolving tank 2 Prepare working solution B with aluminum chloride and ammonium metatungstate. Add ammonia water with a concentration of 8wt% to solution A under stirring, keep the gelling temperature at 50°C, control the pH value at the end of the solution at 7.6, and control the gelling time at 60 minutes to generate slurry I containing nickel and aluminum precipitates. Add 1000mL of clean water into the reaction tank, add ammonia water with a concentration of 8wt% and solution B into the reaction tank concurrently, keep the gelling temperature at 55°C, and control the pH value at 8.0 during the concurrent gelation reaction process, and control the gelation time At 60 minutes, slurry II containing tungsten and aluminum precipitates was fo...
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