Paraffin hydrofining catalyst and preparation method thereof
A hydrorefining and catalyst technology, which is applied in petroleum wax refining, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve the problem that the dispersion of active metal nickel cannot be improved, the distribution of active metal cannot be reduced, and the utilization rate of active metal is low. and other problems, to achieve the effect of reducing capillary pressure, reducing polarity and free energy, and high utilization.
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Embodiment 1
[0030] (1) Weigh 500g of macroporous pseudo-boehmite, add 10g of turnip powder, 20g of methyl cellulose, and 20g of acetic acid, mix well, add an appropriate amount of deionized water, and knead at room temperature to shape. After molding, dry at 120°C for 4 hours, and bake at 650°C for 4 hours. The specific surface area of the carrier after calcination is 345 m 2 / g, the pore volume is 0.95 mL / g, and the average pore diameter is 14nm;
[0031] (2) Weigh 100g of the catalyst carrier prepared in step (1), spray and soak it with 100ml of Span-80 ethanol solution with a concentration of 0.5g / 100mL, and then dry it under vacuum at 60°C for 5 hours;
[0032] (3) Dissolve ammonium molybdate, nickel nitrate and phosphoric acid in water, then add sodium polymethacrylate to obtain an impregnation solution, in which the content of molybdenum oxide is 53.8 / 100mL, the content of nickel oxide is 11.7g / 100mL, and the content of phosphorus The content is 2.2g / 100mL, and the content of so...
Embodiment 2
[0034] Others are the same as in Example 1, except that the content of sodium polymethacrylate in the dipping solution prepared in step (3) is 1.2 g / 100 mL in terms of carboxylate, and the dipping time is 3 hours. Obtained paraffin hydrotreating catalyst B.
Embodiment 3
[0036] Others are the same as in Example 1, except that the Span-80 ethanol solution with a concentration of 1.0 g / 100 mL is used in step (2). A paraffin hydrorefining catalyst C was obtained.
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