Hydrocracking nickel-molybdenum catalyst and preparation method thereof
A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, chemical instruments and methods, etc., can solve problems such as inapplicability of hydrogenation process, and achieve synthesis cost Low, simple production process, good hydrocracking performance and effect
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[0018] A preparation method for hydrocracking molybdenum-nickel catalyst, comprising the following steps:
[0019] (1) Dissolve and disperse the hexavalent molybdenum source compound with the solvent, add an inorganic acid catalyst, the mass ratio of the inorganic acid catalyst to the hexavalent molybdenum source is (0.05~0.2:1), and then add C1~C5 organic acid at a temperature of 40~150 Reaction under ℃, described solvent is benzene, toluene, water, ethanol or sherwood oil;
[0020] (2) adding C6-C16 organic acid or C6-C16 ester to the product of step (1), and reacting at a temperature of 160-320°C;
[0021] (3) The temperature of the product in step (2) is lowered to 20-80°C, adding nickel-containing inorganic substances, reacting at 50-95°C for 3-10 hours, then raising the temperature to 100-180°C for 1-8 hours;
[0022] (4) separating the product obtained in step (3), removing the solvent phase, washing the oil phase with water, and obtaining the hydrocracking molybdenum-...
Embodiment 1
[0035]15g molybdenum trioxide and 300g water were dissolved and dispersed in the flask, purged with inert gas, 2.5ml hydrochloric acid was added dropwise, and acetic acid was added to react at a temperature of 70°C for 4 hours. The molar ratio of the amount of acetic acid to molybdenum trioxide was 5; The molar ratio of molybdenum oxide to 2-ethylhexanoic acid is 1:9, and heptanoic acid is added to the product of reaction 1) for 5 minutes. After the addition of heptanoic acid is completed, the reaction is carried out at a temperature of 170° C. for 5 hours; The product was cooled to 50°C, nickel sulfate was added according to the molar ratio of nickel sulfate to molybdenum trioxide of 0.3:1, reacted at 80°C for 8 hours, and then reacted at 120°C for 3 hours.
[0036] The product is separated, the solvent phase is removed, the oil phase is washed with water, and the product is collected by distillation under reduced pressure. Carry out metal content analysis, analysis method GB...
Embodiment 2
[0038] 20g molybdic acid and 150g water were dissolved and dispersed in the flask, purged with inert gas, 1.5ml hydrochloric acid was added dropwise, and oxalic acid was added to react for 8 hours at a temperature of 90°C. The molar ratio of oxalic acid consumption to molybdenum trioxide was 3: 1; according to the molar ratio of molybdic acid and heptanoic acid is 1:5, add heptanoic acid to the product of reaction 1), the addition time is 10 minutes, after the addition of heptanoic acid is completed, react at a temperature of 200 ° C for 8 hours; the product Cool down to room temperature, add nickel hydroxide at a molar ratio of nickel hydroxide to molybdic acid of 0.23:1, react at 70°C for 3 hours, and then react at 110°C for 5 hours.
[0039] The product is separated, the solvent phase is removed, the oil phase is washed with water, and the product is collected by distillation under reduced pressure. Carry out metal content analysis, the analysis method is GB / T 17476 equival...
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