Preparation method of hydrocarbon hydrotreatment catalyst
A hydrotreating and catalyst technology, applied in refining to remove heteroatoms, etc., can solve the problems of lower performance, uneven distribution of titanium and silicon, and affect the particle size of aluminum hydroxide, and achieve improved catalyst performance and uniform distribution. , the effect of improving utilization
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Embodiment 1
[0018] The concentration is 30g Al 2 o 3 / l, 2000mL of a sodium metaaluminate solution with an atomic ratio of Na to Al of 1.4 is placed in a reactor at a temperature of 25°C, and carbon dioxide gas with a concentration of 40v% is fed into it, and the concentration is added dropwise under stirring while passing through carbon dioxide. 50g TiO 2 The titanium trichloride solution 140ml of / l, when the slurry pH value is 11, the titanium trichloride solution is added dropwise, stops leading carbon dioxide gas when the slurry pH value is 10. The slurry was aged for 1.0 hour. Then filter and wash with deionized water until the carrier contains Na + When it is 3 The concentration is 30.0wt%, the solution contains NH 3 It is 10wt%, fully mixed until the lye wets the aluminum hydroxide powder, then adds 36g of acidic solution, containing Ni(NO 3 ) 2 16.2wt%, Co(NO 3 ) 2 16.2wt%, the solution contains 17wt% acetic acid, fully kneaded to a plastic body, extruded into a four-le...
Embodiment 2
[0020] Compared with Example 1, the sodium metaaluminate solution concentration is changed to 20g Al 2 o 3 / l, dropwise add 92ml of titanium salt solution of the same concentration, MoO 3 The concentration was changed to 46.0%, Ni(NO 3 ) 2 The concentration was changed to 24.8%, Co(NO 3 ) 2 The concentration of the catalyst is changed to 24.8%, and other implementation conditions are unchanged, both in this example catalyst B, its properties are shown in Table 1.
Embodiment 3
[0022] The titanium trichloride solution in Example 1 was added by spraying, and the other implementation conditions remained unchanged, that is, Catalyst C in this example, and its properties are shown in Table 1.
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