Device for injecting a hydrocarbon charge
AssigneeInstitut Francais du Petrole
InventorsThierry Gauthier, Régis Bonifay
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Abstract
The present invention relates to a device for injecting a hydrocarbon charge into a catalytic cracking reactor comprising in particular an envelope (1), a main (liquid) charge feed tube (3), and an inlet (2) for an auxiliary gaseous fluid. According to the invention, charge feed tube (3) is divided, inside envelope (1), into at least two secondary lines (4) designed to distribute said charge uniformly, each secondary line (4) terminates coaxially with the inlet of an element (7) of the venturi type, and the auxiliary gaseous fluid is mixed with the charge at the inlet of said venturi (7). The present invention applies in particular to catalytic cracking of heavy hydrocarbon charges.
Claims14
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.
Dependencies are inferred from the claim text.