CONVERSION OF CRUDE OIL IN FLUIDIZED BED CONTAINING ZONES WITH DIFFERENT CONTACT TIMES Russian patent published in 2024 - IPC C10G11/18 B01J8/24 

FIELD: chemistry.

SUBSTANCE: present invention relates to a device for catalytic cracking of hydrocarbon feedstock in a fluidised bed, in which first hydrocarbon feedstock (2) is cracked in a dense fluidized bed reactor (1) in the presence of catalyst (3) to obtain a first effluent stream; and at least second hydrocarbon feedstock (10) is cracked in moving fluidized bed reactor (4) in the presence of catalyst (3) fed from dense fluidized bed reactor (1) to produce a second effluent stream, wherein second hydrocarbon material (10) is heavier than first hydrocarbon material (2). Invention also relates to a method for catalytic cracking of hydrocarbon material in a fluidised bed of hydrocarbon material.

EFFECT: treatment of hydrocarbon fraction with a wide range of boiling point and maximum increase in production of light olefins with synergetic effect between oil refining and petrochemistry by means of redirection of oil processing methods and their products towards petrochemistry.

15 cl, 6 dwg, 6 tbl, 4 ex