Catalytic cracking catalyst and preparation method
A catalytic cracking and catalyst technology, used in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of inability to meet the requirements of strength, low solid content of catalyst slurry, and large production energy consumption.
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example 1
[0028] Get 5.42 kg of kaolin, add 4.50 kg of deionized water, add 5.91 kg of aluminum sol, mix and beat for 60 minutes, add 1.56 kg of pseudo-boehmite, stir for 40 minutes, add 11.67 kg of molecular sieve slurry ground by a colloid mill (30 %), stirred for 30 minutes, added 1.00 kilograms of silica sol, stirred for 30 minutes, spray-dried, and obtained catalyst microspheres were roasted at 200° C. for 30 minutes, then washed twice with deionized water of 5 times of dry base catalyst, and dried at 120° C. for 2 Hours, that is, the sample of Example 1, the silicon oxide provided by the silica sol accounts for 3w%. The wear index of the obtained catalyst was 1.1, the pore volume was 0.40 ml / g, and the microreaction activity was 80.
example 2
[0030] Get 5.14 kg of kaolin, add 4.50 kg of deionized water, add 5.91 kg of aluminum sol, mix and beat for 60 minutes, add 1.56 kg of pseudo-boehmite, stir for 40 minutes, add 11.67 kg of molecular sieve slurry ground by a colloid mill (30 %), stirred for 30 minutes, added 1.67 kilograms of silica sol, stirred for 30 minutes, spray-dried, and the obtained catalyst microspheres were roasted at 200° C. for 30 minutes, then washed twice with deionized water of 5 times the dry base catalyst, and dried at 120° C. for 2 hour, that is, the sample of Example 2, the silicon oxide provided by the silica sol accounts for 5w%. The wear index of the obtained catalyst was 1.0, the pore volume was 0.41 ml / g, and the microreaction activity was 80.
example 3
[0032] Get 4.44 kg of kaolin, add 4.50 kg of deionized water, add 5.91 kg of aluminum sol, mix and beat for 60 minutes, add 1.56 kg of pseudo-boehmite, stir for 40 minutes, add 11.67 kg of molecular sieve slurry ground by a colloid mill (30 %), stirred for 30 minutes, added 3.33 kilograms of silica sol, stirred for 30 minutes, spray-dried, and the obtained catalyst microspheres were roasted at 200° C. for 30 minutes, then washed twice with deionized water of 5 times of dry base catalyst, and dried at 120° C. for 2 hour, that is, the sample of Example 3, the silicon oxide provided by the silica sol accounts for 10% by weight. The wear index of the obtained catalyst was 1.6, the pore volume was 0.42ml / g, and the microreaction activity was 82. As the amount of silica introduced by the binder in the catalyst increases from 3% to 10%, the activity and pore volume of the catalyst increase, and the attrition index also increases correspondingly, but it is within the controllable inde...
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