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 relationship between pore structure and surface properties that are not conducive to regulation and control problem, to achieve the effect of good activity and stability, high efficiency
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Embodiment 1
[0025] The sawdust was dried at 130°C for 5 hours, and then crushed into 200-mesh sawdust; the sawdust and pseudo-boehmite were mixed with Al 2 o 3 Mix according to the mass ratio of 3:7, add 5wt% acetic acid and 3wt% kale powder for kneading, and extrude; the molded object is subjected to microwave pretreatment at 350°C for 1h, and the microwave power is 1kW, and then heated in helium Carry out carbonization treatment under the atmosphere for 4 hours, and the carbonization temperature is 500°C; the carbonized material is activated at a high temperature at 900°C, the activation atmosphere is water vapor containing 10% ammonia by volume, and the activation time is 3 hours, and the carbonized alumina is prepared Composite carrier: impregnating the carbon-containing alumina composite carrier with a solution containing active metal molybdenum and nickel components, then drying at 150°C for 4 hours, and then calcining at 450°C for 3 hours to prepare the hydroprocessing catalyst A o...
Embodiment 2
[0027] The sawdust was dried at 150°C for 4 hours, and then crushed into 100-mesh sawdust; the sawdust and pseudo-boehmite were mixed with Al 2 o 3 Mix according to the mass ratio of 3:7, add 5wt% acetic acid and 3wt% kale powder, knead, and extrude; pretreat the molded object with microwave at 300°C for 2h, microwave power is 3kW, and then Carry out carbonization treatment for 5 hours under an atmospheric atmosphere, and the carbonization temperature is 510°C; the carbonized material is activated at a high temperature at 850°C, the activation atmosphere is carbon dioxide and water vapor containing 10% ammonia by volume, carbon dioxide and ammonia-containing water vapor The volume ratio is 5:5, the activation time is 5h, and the carbon-containing alumina composite support is prepared; the carbon-containing alumina composite support is impregnated with a solution containing molybdenum and nickel components, and then dried at 140 ° C for 4 hours, and then dried at 550 ℃ for 3 h...
Embodiment 3
[0029] The sawdust was dried at 100°C for 8 hours and crushed into 300-mesh sawdust; the sawdust was mixed with large-pore pseudoboehmite with Al 2 o 3Mix according to the mass ratio of 4:6, add 5wt% acetic acid and 3wt% kale powder, knead, and extrude; pretreat the molded object with microwave at 400°C for 2h, microwave power is 2kW, and then Carry out carbonization treatment for 3 hours in an air atmosphere, and the carbonization temperature is 550°C; the carbonized material is activated at a high temperature at 950°C, the activation atmosphere is helium and water vapor containing 10% ammonia by volume, helium and ammonia-containing water The volume ratio of the steam is 6:4, the activation time is 4h, and the carbon-containing alumina composite support is prepared; the carbon-containing alumina composite support is impregnated with a solution containing molybdenum and nickel components, and then dried at 150°C for 4 hours, and then in Calcined at 460° C. for 3 hours to pre...
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