FIELD: process engineering.
SUBSTANCE: invention relates to mixing of recovered catalyst with carbonised catalyst. Besides, it relates to the device designed to bring recovered catalyst in contact with hydrocarbon stock. This device comprises riser reactor wherein hydrocarbon stock contacts with catalyst particles for catalytic cracking of hydrocarbons in said hydrocarbon stock. This results in light-end product composed of lighter hydrocarbons and carbonised catalyst. Besides it includes stock distributor, reactor vessel, recovery vessel, recovered catalyst pipeline, recovered catalyst baffle and carbonised catalyst pipeline. Besides, it relates to the device designed to bring recovered catalyst in contact with hydrocarbon stock.
EFFECT: higher quality of hydrocarbon product.
9 cl, 3 dwg, 1 ex
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