Distillate oil hydrotreating catalyst and preparation method thereof
A hydrogenation treatment and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of not being able to effectively apply heavy distillate oil hydrodesulfurization And other issues
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Embodiment 1
[0084] Weigh 12g of polyethylene glycol 2000 (that is, polyethylene glycol with a molecular weight of 2000, the same below), stir and dissolve in measured water to prepare wetting solution I. Use the wetting solution I to impregnate 200g of alumina carrier, then perform 10h curing, and after drying at 120°C for 3h, the prepared samples are respectively marked as B1.
[0085] The above-mentioned B1 sample was spray-impregnated with an equal volume of impregnation solution containing W and Ni. After the spray-impregnation, it was directly dried at 120°C for 3 hours and calcined at 480°C for 2 hours. The obtained sample was designated as Z1.
[0086] Weigh 10 g of tartaric acid, stir and dissolve in 30 g of water to prepare a wetting solution. Take the Z1 sample, and spray the wetting solution II evenly on Z1 for 15 minutes. After spraying and immersing in the wetting solution II, dry at 100°C for 2 hours, impregnate the above-mentioned carrier with an equal volume of impregnati...
Embodiment 2
[0088] Weigh 16g of polyethylene glycol 1000, stir and dissolve in measured water to prepare wetting solution I. Use the wetting solution I to impregnate 200g of alumina carrier in equal volume, then perform curing for 5 hours, and dry at 120°C for 3 hours, and the prepared sample is designated as B2.
[0089] Spray and impregnate the B2 sample with an equal volume of impregnation solution containing W and Ni. After the spray impregnation, divide the sample into two parts on average. The first sample is directly dried at 120°C for 3 hours and roasted at 480°C for 2 hours. The obtained sample is designated as Z2; The second sample was cured for 3 hours, dried at 120°C for 3 hours, and roasted at 480°C for 2 hours. The prepared sample was designated as Z3.
[0090] Weigh 1.0 g of malic acid, stir and dissolve in 6 g of ethanol to prepare wetting solution II. Spray and soak the wetting solution II evenly on Z2 for 5 minutes. The above samples were impregnated with equal volumes...
Embodiment 3
[0092] Weigh 7.5g of polyethylene glycol 8000, stir and dissolve in the measured aqueous solution to prepare wetting solution I. Use the wetting solution I to impregnate 300g of alumina carrier in equal volume, then perform curing for 5 hours, and dry at 120°C for 3 hours, and the prepared sample is designated as B3.
[0093] The B3 sample was spray-impregnated with an equal volume of impregnation solution containing W and Ni, dried directly at 120°C for 3 hours, and calcined at 480°C for 2 hours. The obtained sample was designated as Z4.
[0094] Weigh 10.5g each of citric acid and malonic acid, stir and dissolve in 40g water to prepare wetting solution II. Spray and soak the wetting solution II evenly on Z4 for 25 minutes. The above sample was impregnated with an equal volume of impregnation solution containing Mo, Co, and P. After impregnation, it was cured for 1 hour and dried at 120°C for 3 hours. The obtained catalyst was designated as C5.
[0095] Prepare an aqueous s...
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