Patent ID: 9168499
Filing Date: 2015-10-27
Classification: B01D,B01J

Abstract:
1. An arrangement for removing catalyst particulates from a gas, the arrangement comprising: a pressure vessel having a lower region arranged to contain a fluidized bed including catalyst particulates suspended in a gas, an upper region arranged to receive gas and entrained catalyst particulates dispersed from the fluidized bed, and a gas inlet for supplying gas to the lower region containing the fluidized bed; a filter assembly coupled to the pressure vessel to receive the gas and entrained particulates dispersed from the fluidized bed, wherein the filter assembly includes an inlet, first and second outlets, and a permeable filter medium having a feed side and a filtrate side isolated from the feed side by the filter medium and wherein the filter assembly defines a first flow path between the inlet and the first outlet through the filter medium from the feed side to the filtrate side and a second flow path between the inlet and the second outlet tangentially along the feed side of the filter medium; a safety filter positioned in the first flow path between the filter medium and the first outlet of the filter assembly; and a dip leg having an inlet and an outlet, wherein the second outlet of the filter assembly is fluidly coupled to the inlet of the dip leg.