CATALYTIC CRACKING CATALYST AND METHOD FOR ITS MANUFACTURE Russian patent published in 2023 - IPC B01J21/04 B01J29/08 B01J29/40 B01J35/10 B01J37/04 B01J37/08 C10G11/05 

FIELD: catalysts.

SUBSTANCE: catalytic cracking catalyst containing a molecular sieve and an alumina substrate material having a crystalline phase structure of γ-aluminium oxide is described, where, of the total volume of pores with a diameter of 2-100 nm in alumina substrate material, the volume of pores with a diameter of 2-5 nm accounts for 0-10%, the volume of pores with a diameter of more than 5 nm and not more than 10 nm accounts for 10-25%, and the volume of pores with a diameter of more than 10 nm and not more than 100 nm accounts for 65 -90%; and optionally the catalyst contains 25-50 wt.% and preferably 25-35 wt.% of molecular sieve, 0-50 wt.% and preferably 0-30 wt.% of clay, 5-35 wt.%, for example, 10-30 wt.%, and preferably 15-28 wt.% of binder, 2-30 wt.% and preferably 5-25 wt.% of alumina substrate material; wherein the molecular sieve is one or more materials selected from the group consisting of a Y-type molecular sieve, a ZSM-5 molecular sieve and a β molecular sieve. A method for manufacturing the catalyst described above is described, including suspending the binder, the clay, the molecular sieve and the alumina substrate material to obtain a catalyst slurry and spray drying of the catalyst slurry, the alumina substrate material being as defined above.

EFFECT: described catalyst shows improved performance characteristics in relation to cracking of low-quality heavy oil, allows to increase the degree of oil conversion and increases the yield of petroleum products and liquefied gas.

17 cl, 5 tbl, 19 ex