A kind of preparation method of heavy oil catalytic cracking catalyst
A technology of cracking catalyst and heavy oil catalysis, which is applied in the direction of catalyst activation/preparation, catalytic cracking, physical/chemical process catalyst, etc. It can solve the problems of small increase in silicon-aluminum ratio and low utilization rate of silicon source
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Embodiment 1
[0044] The directing agent is prepared by mixing 308g of water glass and 189g of peralkali sodium metaaluminate, and standing at 35°C for 15h. 3000g of kaolin (dry basis), 210g of silica sol and deionized water were mixed and beaten, the solid content of the slurry was 40%, and spray-dried to make microspheres. A part of the kaolin microspheres was roasted at 940° C. for 2.4 hours to obtain high clay balls, and the other part was roasted at 800° C. for 2.5 hours to obtain partial clay balls. Mix 400 g of partial clay balls with 730 g of hydrochloric acid solution with a concentration of 20% by weight and mix evenly , stirred at 92°C for 2 hours; mixed 400g of high soil balls and 920g of lye evenly, stirred at 90°C for 2.5 hours, then added 280g of directing agent and 140g of lye in turn, and crystallized at 92°C for 4 hours, then added the treated partial soil The sphere solution continued to crystallize for 20 hours, filtered, washed with water, and dried to obtain NaY molecu...
Embodiment 2
[0046] The directing agent is prepared by mixing 312g of water glass and 208g of peralkali sodium metaaluminate, and standing at 33°C for 20h. 3421g of kaolin (dry basis), 250g of water glass and deionized water were mixed and beaten, and the solid content of the slurry was 35%, and spray-dried to make microspheres. A part of the kaolin microspheres was roasted at 990°C for 1.2h to obtain kaolin balls, and the other part was roasted at 720°C for 2.8h to obtain partial earth balls, and 600g of partial earth balls and 1370g of hydrochloric acid solution with a concentration of 20% by weight were mixed evenly , stirred at 90°C for 5.8 hours; mixed 200g of high soil balls and 370g of lye evenly, stirred at 95°C for 1.1 hour, then added 160g of directing agent and 70g of lye in turn, crystallized at 94°C for 3 hours, then added the treated partial soil The sphere solution continued to crystallize for 22 hours, filtered, washed with water, and dried to obtain NaY molecular sieve mic...
Embodiment 3
[0048] The directing agent is prepared by mixing 306g of water glass and 196g of peralkali sodium metaaluminate, and standing at 34°C for 32h. 2928g of kaolin (dry basis), 270g of water glass and deionized water were mixed and beaten, and the solid content of the slurry was 43%, and spray-dried to make microspheres. A part of the kaolin microspheres was roasted at 960°C for 2.5h to obtain high clay balls, and the other part was roasted at 780°C for 2.2h to obtain partial earth balls, and 100g of partial earth balls and 290g of sulfuric acid solution with a concentration of 18% by weight were mixed evenly , stirred at 95°C for 1 hour; mixed 700g of high soil balls and 1470g of lye evenly, stirred at 91°C for 2 hours, then added 270g of directing agent and 70g of lye in turn, and crystallized at 92°C for 5.5 hours, then added the treated partial soil The sphere solution continued to crystallize for 19 hours, filtered, washed with water, and dried to obtain NaY molecular sieve mi...
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