A kind of carrier for hydrodesulfurization, catalyst and preparation method thereof
A technology of hydrodesulfurization and catalyst carrier, which is applied in catalyst activation/preparation, catalyst carrier, chemical instruments and methods, etc., can solve the problems of poor metal-accommodating capacity and single function, and achieves enhanced mechanical strength, good activity, and promotion of communication. The effect of wearability and uniformity
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Embodiment 1
[0054] Weigh 25 grams of activated carbon with a particle size of 6 microns, and spray and impregnate the above activated carbon with 7.5 mL of ammonium hydrogen phosphate solution with a mass concentration of 28%. (produced by Crystal Alumina Co., Ltd.), 8 grams of succulent powder were mixed evenly, an appropriate amount of acetic acid aqueous solution with a mass concentration of 1.5% was added and kneaded, and extruded into strips. calcined at °C for 5 hours to obtain an alumina carrier intermediate ZA1.
[0055] Weigh 100 grams of above-mentioned alumina carrier intermediate ZA1, place in 500 grams of ammonium bicarbonate solution, the mass concentration of this ammonium bicarbonate solution is the aqueous solution of 14%, the mixture material is transferred into the autoclave and sealed at 15 ℃ / The temperature was raised to 100 °C at a speed of min for 3 hours, then heated to 140 °C for 6 hours at a rate of 10 °C / min, and then the carrier was dried at 100 °C for 6 hours...
Embodiment 2
[0058] With embodiment 1, just activated carbon is changed into the charcoal with particle diameter of 4 microns, the charcoal addition is 29 grams, the ammonium hydrogen phosphate solution is changed into phosphoric acid solution, the consumption of solution is 8.5mL, and the mass concentration of solution is 30%, obtains oxidation. Aluminum Support Intermediate ZA2. The mass of the ammonium bicarbonate solution is 600 grams, and the mass concentration of the ammonium bicarbonate solution is 17.5%. The sealing pretreatment temperature was 90°C, the treatment time was 2 hours, the heat treatment temperature was 110°C, and the treatment time was 8 hours. The tetraethyl titanate was changed to tetramethyl titanate, and the solution amount was 20ml. 1% to obtain alumina carrier A2, and the properties of the carrier are shown in Table 1. P in the alumina carrier A2 2 O 5 The content is 1.5wt%, the titanium dioxide content is 0.2wt%, the length of the rod-shaped alumina in the m...
Embodiment 3
[0060] With embodiment 1, just activated carbon is changed into the wood chip that particle diameter is 7 microns, the amount of wood chip addition is 21 grams, the consumption of ammonium hydrogen phosphate solution is 7mL, and the mass concentration of solution is 25%, obtains alumina carrier intermediate ZA3. The mass of the ammonium bicarbonate solution is 300 grams, and the mass concentration of the ammonium bicarbonate solution is 20%. The heating rate before sealing pretreatment was 11°C / min, the heating rate after sealing pretreatment was 5°C / min, the heat treatment temperature was 150°C, the treatment time was 4 hours, the dosage of tetraethyl titanate solution was 10ml, and The mass concentration of titanium dioxide is 5%, and the alumina carrier A3 is prepared. The properties of the carrier are shown in Table 1. P in the alumina carrier A3 2 O 5The content is 0.8wt%, the titanium dioxide content is 0.5wt%, the length of the rod-shaped alumina in the micron-scale p...
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