METHOD AND DEVICE FOR CATALYTIC CRACKING Russian patent published in 2015 - IPC C10G51/02 C10G11/18 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to catalytic cracking method involving mixing of recovered catalyst fed to precharge zone (VIII) with oil material, and supply of oil material to reaction zone (I) for catalytic cracking reaction; catalyst and oil gas lifting to catalyst separation zone (III) where a part of catalyst is separated and is transferred to boil-off zone for recovered catalyst (V, VII); remaining catalyst and oil gas are lifted together and then are mixed in the zone of repeated reaction (II) of oil gas with recovered catalyst fed to additional catalyst distribution zone (IV), and oil gas takes part in repeated catalytic reaction; then oil gas and catalyst in lift reactor are separated in sump (VI), recovered catalyst in the oil material reaction zone (I) and repeated oil gas reaction zone (II) are supplied to regenerator (13) after desorption processing with steam in the boil-off zone for recovered catalyst in order to be reactivated. Invention refers additionally to device for catalytic cracking.

EFFECT: improved method.

15 cl, 6 dwg