New solid separation system for gas regenerators catalytic cracking units fluid bed

摘要

Device for separating solid particles contained in a gaseous flow from the deregeneración zone of a catalytic cracking unit in fluid bed (FCC) delimited by an inner shell (3) deforms cylindrical centered along the vertical axis (11) of the area regeneration (25), and an outer cover (1) quepresenta a substantially horizontal wall (15), a curvilinear wall (16) and a substantially vertical wall (17), covering the whole of said walls (15,16,17) the inner shell (3) and forming a set of deseparación chambers (2) spread over bell around the inner shell (3) in which circulates the gas suspension sólidoque be separated each communicating separation chamber (2) on one side the inlet sections (4) with internal cylindrical lacubierta (3), and secondly the outlet sections (5) with the bottom of the deregeneración zone (25), and having at least one lateral outlet (6) located in the part upper sidewall (22) dela separation chamber (2), said lateral outlet (6) by the space being defined between the vertical depared portion of the inner shell (3) located immediately below the inlet section ( 4) and the intrados (26) corresponding to the curved wall (16) of the outer casing (1), said device comprises ademásdeflectores (7) located between two separation chambers (2) successive, each deflector (7) being provided with at least one orifice located at its bottom, and being fixed to the wall of the inner cylindrical cover (3), teniendocada deflector (7) a wing shape facing upwards, the upper end of the wing being located at a nivelinferior the top level the lateral opening (16), and constituting return legs (8) of the cyclone (21) laetapa secondary separation, intercalated between the separation chambers (2), and aligned according to a diameter compr círculode Cleft between the diameter of the inner cylindrical cover 3) and the largest diameter of external lacubierta (1),