Catalytic cracking co-catalyst preparation method
A co-catalyst, catalytic cracking technology, applied in catalytic cracking, physical/chemical process catalyst, molecular sieve catalyst, etc., can solve the problem that the pore structure of the co-catalyst matrix needs to be further improved, and achieve the effect of good diesel selectivity
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Embodiment 1
[0044] (1) Preparation of in-situ crystallization products from kaolin microspheres
[0045] 3000g of kaolin, based on the mass of kaolin, was added with 9% water glass, 5% pseudoboehmite, 1% auxiliary agent polydimethyldiallylammonium chloride, and deionized water was added to prepare a solid content of 34%. The mixed slurry obtains the kaolin spray microspheres of 3021g. The microspheres were calcined at 970° C. for 1.5 hours to obtain Gaotu microspheres GT-1.
[0046] Take Gaotu microsphere GT-11000g, mix with 537ml water glass, 794ml14wt% sodium hydroxide solution, and 96ml directing agent, stir for 30 minutes, put the mixture into a stainless steel reaction kettle, raise the temperature to 85°C for 6 hours of static crystallization. After the crystallization is completed, the white powder in the solution is removed by settling and washing, and then the filter cake is filtered, washed, and dried to obtain an in-situ crystallization product. As determined by X-ray diffrac...
Embodiment 2
[0054] (1) Preparation of in-situ crystallization products from kaolin microspheres
[0055] With 3000g of kaolin, based on the mass of kaolin, add 5% of water glass, 3% of pseudoboehmite, 2% of auxiliary agent polydimethyldiallylammonium chloride, and add deionized water to prepare a solid content of 36%. The mixed slurry obtained the kaolin spray microspheres of 3106g. The microspheres were calcined at 940°C for 2.5 hours to obtain Gaotu microspheres GT-2.
[0056] Take Gaotu Microsphere GT-21000g, mix with 396ml water glass, 580ml14wt% sodium hydroxide solution, and 65ml directing agent, stir for 30 minutes, put the mixture into a stainless steel reaction kettle, raise the temperature to 96°C for static crystallization for 7 hours. After the crystallization is completed, the white powder in the solution is removed by settling and washing, and then the filter cake is filtered, washed, and dried to obtain an in-situ crystallization product. As determined by X-ray diffractio...
Embodiment 3
[0064] (1) Preparation of in-situ crystallization products from kaolin microspheres
[0065] 3000g of kaolin, based on the mass of kaolin, was added with 3% of water glass, 11% of silica sol, 4% of polydimethyldiallyl ammonium chloride as an auxiliary agent, and deionized water to prepare a mixed slurry with a solid content of 39%. , to obtain 3074g kaolin spray microspheres. A part of the microspheres was calcined at 930° C. for 2.0 hours to obtain Gaotu microspheres GT-3.
[0066] Take Gaotu microsphere GT-31000g, mix with 495ml water glass, 527ml14wt% sodium hydroxide solution, and 121ml directing agent, stir for 30 minutes, put the mixture into a stainless steel reaction kettle, raise the temperature to 91°C for 8h static crystallization. After the crystallization is completed, the white powder in the solution is removed by settling and washing, and then the filter cake is filtered, washed, and dried to obtain an in-situ crystallization product. As determined by X-ray di...
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