Preparation method of hydrocracking catalyst, hydrocracking catalyst and application of hydrocracking catalyst
A hydrocracking and catalyst technology, which is applied in the preparation method of hydrocracking catalyst, hydrocracking catalyst and application field, can solve the problems of low yield of cracked light oil, poor catalyst activity, short catalyst life, etc. and the effect of reducing sulfur content, improving freezing point, and increasing cetane number
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Embodiment 1
[0076] (1) Preparation of catalyst support for coal tar hydrocracking
[0077] (1) Preparation of amorphous silica-alumina dry rubber powder A1 and slurry: sodium aluminate solution concentration 18gAl 2 o 3 / L, the concentration of sodium silicate solution is 100gSiO 2 / L, take 0.75L sodium aluminate solution and put it into the gel-forming tank, then add 0.35L sodium silicate solution, control the reaction temperature at 20°C, and feed CO with a concentration of 40v%. 2 gas, CO 2 When the gas accounts for 50% of the total intake, add 0.15L sodium silicate solution while ventilating to control the pH value of the gel to 9.5, then ventilate and stabilize for 20 minutes, filter the slurry and wash it with 65°C deionized water until neutral. The filter cake was beaten with water at a solid-to-liquid volume ratio of 10:1, treated at 130°C under 3.5MPa water vapor pressure for 2 hours, dried at 120°C for 6 hours, crushed and sieved to obtain the amorphous silica-alumina product...
Embodiment 2
[0085] (1) Preparation of hydrocracking catalyst carrier
[0086] (1) Preparation of amorphous silica-alumina dry rubber powder A2 and slurry: sodium aluminate solution concentration 20gAl 2 o 3 / L, the concentration of sodium silicate solution is 35gSiO 2 / L, put 0.3L sodium aluminate solution into the gel-forming tank, then add 0.5L sodium silicate solution, control the reaction temperature at 22°C, and feed CO with a concentration of 35v%. 2 gas, CO 2 When the gas accounts for 50% of the total intake, add 0.2L sodium silicate solution while ventilating to control the pH value of the gel to 9.8, then ventilate and stabilize for 20 minutes, filter the slurry and wash it with 75°C deionized water until neutral. The filter cake was beaten with water at a solid-to-liquid volume ratio of 8:1, treated at 120°C and 3.0 MPa steam pressure for 2 hours, dried at 120°C for 8 hours, crushed and sieved to obtain amorphous silicon-aluminum product A2, amorphous silicon The properties ...
Embodiment 3
[0094] (1) Preparation of hydrocracking catalyst carrier
[0095] (1) Preparation of amorphous silica-alumina dry rubber powder A3 and slurry: concentration of sodium aluminate solution 21gAl 2 o 3 / L, sodium silicate working solution concentration 65gSiO 2 / L, take 0.83L sodium aluminate solution and place it in a gel-forming tank, then add 0.5L sodium silicate solution, control the reaction temperature at 32°C, and feed CO with a concentration of 52v%. 2 Gas, stop when the pH value reaches 9.8, then ventilate and stabilize for 20 minutes, wash until neutral, add water to the filter cake according to the solid-liquid volume ratio of 9:1, and treat it at 130°C for 3 hours under 3.9MPa water vapor pressure. After drying at 130°C for 8 hours, it was crushed and sieved to obtain the amorphous silica-alumina product A3. The properties of amorphous silica-alumina dry rubber powder A3 are shown in Table 1. The prepared amorphous silica-alumina A3 is mixed with deionized water an...
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