Patent ID: 6645437
Filing Date: 2003-11-11
Classification: B01J,C10G

Abstract:
A device for injecting a hydrocarbon charge into a catalytic cracking reactor comprising an envelope, a main charge feed tube, and an inlet for an auxiliary gaseous fluid, wherein said charge feed tube is divided, inside said envelope, into at least two secondary lines designed to distribute said charge uniformly, wherein each secondary line terminates upstream of a respective venturi element, wherein each secondary line has a plurality of orifices or slots disposed at its periphery and designed to carry the charge transversely to a direction of flow of said auxiliary gaseous fluid, said orifices or slots terminating upstream of the respective venturi element, and wherein, for each secondary line and each respective venturi element, the auxiliary gaseous fluid is mixed with the charge in a mixing chamber located at an inlet of said respective venturi element.