Preparation method of bulk phase hydrocracking catalyst
A cracking catalyst and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, heterogeneous catalyst chemical elements, etc., can solve the problems of high investment cost, long production process, complicated operation, etc., and reduce operation cost, large economic benefits, and the effect of increasing the added value of products
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Embodiment 1
[0037] (1) Mix the mixed solution containing nickel chloride and aluminum chloride (the mass concentration of Ni is 28g / L in terms of NiO, and the mass concentration of Al in terms of Al 2 o 3 The mass concentration is 9g / L), 12wt% sodium hydroxide solution and sodium tungstate solution (W is expressed as WO 3 The mass concentration is 42g / L) and flowed into the gelation tank with a certain amount of bottom water for gelation reaction. The gelation temperature is 60°C, the pH value is 7.8, and the gelation time is 60 minutes. After the gelation is completed, precipitation is obtained. material slurry;
[0038] (2) Mix the slurry containing β molecular sieve (15.2 grams of molecular sieve, solid-to-liquid volume ratio of 1:3.) and the sediment slurry from step (1), and then age it. The aging temperature is 75°C, and the aging pH value is 8.0. Aged for 2 hours. After aging, add molybdenum oxide, beat and mix, filter the obtained slurry, dry the filter cake at 80°C for 10 hour...
Embodiment 2
[0041] (1) The mixed solution containing nickel chloride and aluminum chloride (the mass concentration of Ni as NiO is 36g / L, Al as Al 2 o 3 The mass concentration is 10g / L), 15wt% sodium hydroxide solution and sodium tungstate solution (W is expressed as WO 3 The mass concentration of the meter is 42g / L) and flow into the gelation tank with a certain amount of bottom water for gelation reaction. The gelation temperature is 55°C, the pH value is 7.8, and the gelation time is 48 minutes. After the gelation is completed, you can get sediment slurry;
[0042] (2) Mix the β molecular sieve-containing slurry (solid-to-liquid volume ratio 1:4) with the sediment slurry from step (1), and then age it. The aging temperature is 70°C, the aging pH value is 8.0, and the aging time is 2.2 hours. After aging, molybdenum oxide is added, beaten and mixed, the obtained slurry is filtered, the filter cake is dried at 85°C for 16 hours, rolled, and extruded to obtain a molded product;
[0043...
Embodiment 3
[0045] (1) In the mixed solution containing nickel sulfate and aluminum chloride (the mass concentration of Ni is 32g / L as NiO, Al is 32g / L as Al 2 o 3 The mass concentration of meter is 7g / L), 10wt% sodium hydroxide solution, sodium tungstate solution (W is expressed as WO 3 The mass concentration of the meter is 46g / L) and flow into the gelation tank with a certain amount of bottom water for gelation reaction. The gelation temperature is 65°C, the pH value is 7.6, and the gelation time is 84 minutes. After the gelation is completed, you can get sediment slurry;
[0046] (2) Mix the slurry containing β-molecular sieve (solid-to-liquid volume ratio: 1:2.5) and the sediment slurry from step (1), and then age, the aging temperature is 76°C, the aging pH value is 8.3, and after aging for 3.5 hours, Then, the sediment slurry was further aged under high pressure, the pressure was 12.5 MPa, the aging temperature was 140° C., the aging time was 1.5 hours, and the pH value was 11.5....
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