Hydrorefining catalyst and preparation method thereof
A hydrogenation refining and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process 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
[0042] 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, ammonium molybdate and aluminum chloride solution in clean water respectively to prepare mixed solution B, and in mixed solution B, WO 3 The weight concentration is 39g / L, MoO 3 The weight concentration is 16g / L, Al 2 o 3 The weight concentration is 13g / L. Add ammonia water with a concentration of 10% (weight) 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 10% (by weight) and solution B into the reaction tank in parallel, keep the gelling temper...
Embodiment 2
[0044]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, ammonium metatungstate and ammonium molybdate. Add ammonia water with a concentration of 12% (weight) to solution A under stirring, keep the gelling temperature at 55°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 12% (by weight) and solution B into the reaction tank in parallel, keep the gelling temperature at 50°C, and control the pH value at 7.6 during the gelling reaction process. The glue time is controlled at 60 minutes to gener...
Embodiment 3
[0046] 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, ammonium metatungstate and ammonium molybdate. Add ammonia water with a concentration of 8% (weight) to solution A under stirring, keep the gelling temperature at 45°C, control the pH value at 7.6 at the end, 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 8% (weight) and solution B into the reaction tank in parallel, keep the gelling temperature at 60°C, and control the pH value at 8.0 during the gelling reaction process. The glue time is controlled at 60 minutes to generate slurry II containing tungsten, molybdenum and al...
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