CRACKING CATALYST AND METHOD FOR PREPARATION THEREOF Russian patent published in 2024 - IPC B01J29/08 C01B39/24 B01J21/16 B01J21/06 B01J29/80 B01J23/10 B01J35/00 B01J37/08 B01J37/04 C10G11/05 

FIELD: chemistry.

SUBSTANCE: present invention relates to a cracking catalyst and more specifically to a cracking catalyst with low coke formation and a method for preparing said catalyst. Cracking catalyst contains 10–70 wt.% of a cracking active component, 10–60 wt.% of binder and 10–70 wt.% of clay, wherein the cracking active component comprises a first Y-type molecular sieve; where the first Y-type molecular sieve is a modified molecular sieve based on the crystalline modification of kaolin, obtained by modifying the molecular sieve based on the crystalline modification of kaolin, and has a sodium oxide content of less than 2 wt.%, and for a molecular sieve based on a crystalline modification of kaolin when measured by an X-ray diffraction method, the crystallinity by the peak height method is equal to ≥60%, and the ratio K1 of the crystallinity by the peak height method to the crystallinity by the peak area method is K1 = 0.76–0.89; silica-alumina ratio, measured with unit cell constant a0, is 5.0–5.5, and ratio K2 of silica-alumina ratio, measured with unit cell constant a0, to the silica-alumina ratio, measured by a chemical method, is K2 = 0.87–0.93, where the silica-alumina ratio is the molar ratio of silica to alumina. Method for preparing the catalyst comprises steps of vigorous mixing and mixing of a cracking active component comprising a modified molecular sieve based on a crystalline modification of kaolin, a binder and clay with water; spray drying; flushing; filtration; and drying. Catalytic cracking method includes a step of bringing hydrocarbon oil into contact with a cracking catalyst for carrying out a reaction.

EFFECT: creation of catalyst used in reaction of catalytic cracking of crude oil and having good coke selectivity, as well as higher coefficient of conversion of crude oil.

24 cl, 20 tbl, 82 ex