Catalytic cracking light gasoline desulfurization adsorbent and preparation method thereof
A catalytic cracking and adsorbent technology, applied in chemical instruments and methods, hydrocarbon oil treatment, refined hydrocarbon oil, etc., can solve the problems of unsatisfactory effect and high saturation of tertiary olefins, and achieve good low temperature and low pressure activity, enhanced dispersion, Weaken the effect of the interaction
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[0036] Further, the present invention also provides the preparation method of the catalytic cracking light gasoline desulfurization adsorbent, including the steps of:
[0037] Step 1, prepare ZnO-TiO 2 Composite oxide;
[0038] Step 2, use tin precursor solution to ZnO-TiO 2 Composite oxide is modified;
[0039] Step 3, the modified ZnO-Tio obtained by step 2 2 The composite oxide impregnates the impregnation liquid comprising the active component precursor to obtain a catalytic cracking light gasoline desulfurization adsorbent.
[0040] Among them, the present invention is for ZnO-TiO 2 The preparation of the composite oxide is not particularly limited, and is a preferred technical solution, the preparation process is: mixed the alkali-type carbonate, metallite-based acid, and the ground is uniformly added to 2 to 6% by weight of nitric acid and 3 to 6% by weight of Tianjing powder. After the stirring is mixed, the mold is extruded, and after 12 h, it is dried in 120 to 150 ° C f...
Embodiment 1
[0054] It is weighing the alkali-type carbonate (25%, the same as the same) 90g, 51g of ketchlate, 4g of the fields, mixed with mixed grinding, and then adding the amount of 2% nitric acid, stirring is mixed and squeezed. After 12 h, it was dried at 120 ° C for 6 h, and then it was taken at 500 ° C for 7 hours to obtain ZnO-TiO. 2 Carrier A. Then, it is called 0.98 g of tinyl chloride dissolve in 51 ml no water ethanol, and ZnO-TiO 2 The volume of the carrier A is immersed for 6 h, dried at 120 ° C, baked for 6 h at 400 ° C, and modified ZnO-TiO 2 Carrier B. Zno-TiO 2 Zno and TiO 2 The mass ratio is 6: 4, SN accounts for Zno-TiO 2 The mass percentage of composite oxides is 0.6%, and the carrier hole is 0.36cm. 3 / g, the specific surface area is 31.6m 2 / g, the deposit density is 0.96 g / ml (the pore area of the carrier, the surface area, the density of the density and the like is substantially the same as the corresponding catalyst, so the corresponding catalyst is not indica...
Embodiment 2
[0056] It is weighing 104g of alkali-type carbonate, 38g of metanton acid, 5g of Tianjing powder, uniform, then adding a proper amount of 3% nitric acid, stirring is mixed and squeezed, placed in 12 h, after 120 ° C drying 4h, Get ZnO-TiO after calcination at 450 ° C for 8 h 2 Carrier. Then, 2.0 g of tin chloride dissolve is dissolved in 56 ml of anhydrous ethanol, and ZnO-TiO 2 The vectors of the carrier are impregnated at 7 h, dried at 120 ° C, baked at 400 ° C for 5 h, and modified Al 2 O 3 -Tio 2 Carry C. Zno-TiO 2 Zno and TiO 2 The mass ratio is 7: 3, SN accounts for Zno-TiO 2 The mass percentage of composite oxides is 1.1%, and the carrier hole is 0.31cm. 3 / g, the specific surface area is 32.9m 2 / g, the stacked density is 0.98 g / ml.
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