Preparation method for hydrorefining of catalyst
A catalyst and two-stage hydrogenation technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. Olefin saturation and poor hydrodesulfurization performance, etc., to achieve the effects of suppressing surface carbon, low start-up temperature, and avoiding environmental pollution
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Embodiment 1
[0018] Take by weighing 300 grams of pseudo-boehmite, 7.5 grams of fenugreek powder, mix, then add 12.5 grams of silica sol, 4.0 grams of nitric acid, 210 milliliters of an aqueous solution of 11.7 grams of 85% phosphoric acid and 4.2 grams of lithium carbonate, and extrude into mm clover, wet strips were dried at 120°C for 4 hours and then calcined at 550°C for 8 hours to obtain carrier Z1. Weigh 30.5 grams of ammonium molybdate, 27.0 grams of nickel nitrate, 18.6 grams of calcium nitrate, 1.39 grams of potassium carbonate, add 90 grams of water and mix to form an impregnation solution. The carrier is impregnated with an equal amount of impregnation solution, dried at 120°C for 18 hours, and calcined at 470°C for 12 hours to obtain Ni-Mo / Al 2 o 3 Catalyst C1 had a final Mo content of 10.3% by weight of the catalyst and a Ni content of 3.4% by weight of the catalyst. The catalyst composition is shown in Table 1, wherein the contents of each component are based on the weight...
Embodiment 2
[0020] Take by weighing 300 grams of pseudo-boehmite, 8.0 grams of asparagus powder, and 5.5 grams of diatomaceous earth, mix them, then add 220 milliliters of an aqueous solution of 4.0 grams of nitric acid and 28.5 grams of boric acid, and extrude into mm clover, wet strips were dried at 120°C for 4 hours and then calcined at 550°C for 16 hours to obtain carrier Z2. Weigh 36.4 grams of ammonium molybdate, 23.4 grams of cobalt acetate, 25.8 grams of magnesium nitrate, 11.5 grams of calcium nitrate, 2.58 grams of potassium carbonate, add 100 grams of water and mix to form an impregnation solution. The carrier was impregnated with an equal amount of impregnating solution, dried at 120°C for 24 hours, and calcined at 470°C for 8 hours to obtain Co-Mo / Al 2 o 3 Catalyst C2 had a final Mo content of 10.3% by weight of the catalyst and a Co content of 3.4% by weight of the catalyst. The catalyst composition is shown in Table 1, wherein the contents of each component are based on t...
Embodiment 3
[0022] Take by weighing 300 grams of pseudo-boehmite, 9.0 grams of fenugreek powder, 1.34 grams of silica gel powder, and 5 grams of silica sol to mix, then add 4.0 grams of nitric acid, 210 milliliters of an aqueous solution of 11.5 grams of phosphoric acid with a concentration of 85%, and 4.6 grams of boric acid, squeeze into mm clover, wet strips were dried at 120°C for 24 hours and then calcined at 620°C for 8 hours to obtain carrier Z3. Weigh 30.5 grams of ammonium molybdate, 5.9 grams of cobalt acetate, 17.5 grams of nickel acetate, 16.7 grams of magnesium nitrate, 3.0 grams of barium nitrate, 1.67 grams of potassium carbonate, add 94 grams of water and mix to form an impregnation solution. The carrier was impregnated with an equal amount of impregnation solution, dried at 120°C for 24 hours, and calcined at 480°C for 16 hours to obtain Co-Ni-Mo / Al 2 o 3 For catalyst C3, the final Mo content was 10.3% by weight of the catalyst, the content of Co was 1.0% by weight of ...
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