Patent ID: 6290743
Filing Date: 2001-09-18
Classification: B01D

Abstract:
Filter assembly for filtering gas, comprising a fail-safe/regenerator filter device and an elongated filter element, within a hot gas cleanup system pressure vessel having a hot contaminating gas entry, said filter assembly comprising:(a) a filter housing, said filter housing having a peripheral sidewall, said sidewall defining an interior chamber;(b) a porous, elongated filter element body attached to the bottom end of the fail-safe/regenerator filter device; and(c) a one-piece, all metal, fail-safe/regenerator filter device, having a top and bottom end, disposed within the interior chamber of the filter housing, said fail-safe/regenerator filter device containing a metal support attached to a plurality of porous elongated passageway members selected from: (1) elongated tubes having a bottom end with openings, and (2) honeycomb members having a bottom end with openings and a plurality of parallel passageways with alternative passageways being sealed at the top end and the bottom end, with the open bottom ends facing the filter element.