PROCEDURE TO CRACK A HYDROCARBON FEEDING LOAD THAT INCLUDES A HEAVY TAIL.

摘要

Method for thermally cracking a hydrocarbon charge in an installation comprising a radiant section (6) and a convection section (7), in which a hydrocarbon feed load is supplied to a preheater of the load (1) present in the convection section (7), the heat absorption of the load preheater (1) is controlled by regulating the heat exchange capacity of an economizer (9), said economizer (9) being located in the convection section (7) ) between the preheater of the load (1) and the radiant section (6), in which, after leaving the preheater of the load, the heated load is separated in a separator in a fraction of steam and a liquid fraction and, at least part of the vapor fraction is cracked in the radiant section, in which the installation comprises a heat absorption controller of the load preheater, which comprises an inlet to record the flow of liquid of the fraction leaving the separator and / or an inlet to record the temperature of the steam leaving the separator, and comprising an outlet to regulate the flow and / or temperature of the economizer's heat exchange medium.