DISENGAGER STRIPPER CONTAINING DISSIPATION PLATES FOR USE INAN FCC PROCESS

摘要

"DISENGAGER STRIPPER CONTAINING DISSIPATION PLATES FOR USE IN AN FCC PROCESS" A method and apparatus for an FCC process uses dissipator plates at the outlet of a disengaging vessel to provide a quick separation of catalyst from product vapors and to prevent reentrainment of catalyst by stripping gas which is passed into the disengaging vessel. The process and apparatus use a riser for the conversion of an FCC feedstock and direct the effluent from the riser directly into a disengaging vessel to separate catalyst from the product vapors. Catalyst is directed downwardly out of the outlet of the disengaging vessel and through a series of dissipator plates that eliminate the tangential velocity that would be otherwise introduced by the vortex and would lead to reentrainment of catalyst. The dissipator plates are located in a stripping vessel positioned immediately below the disengaging vessel outlet to receive catalyst as it leaves the disengaging vessel.