Patent ID: 6488269
Filing Date: 2002-12-03
Classification: B01D,Y10S

Abstract:
A scrubber for scrubbing gaseous effluents, said scrubber comprising:a scrubbing chamber comprising: a filter region therein, said filter region comprising: a perforate diverter; a perforate filter under said perforate diverter; and a plurality of filter media packed between said perforate diverter and said perforate filter; at least two perforate plates disposed under said perforate filter each having a plurality of openings; a scrubbing liquid supply pipe connecting the top of said scrubbing chamber to transit a scrubbing liquid into said scrubbing chamber from a scrubbing liquid supply source; a first gas conduit connecting the top of said scrubbing chamber at a first end of said first gas conduit to exhaust said gaseous effluents from said scrubbing chamber to a main gas discharge conduit; a manual valve connecting a second end of said first gas conduit; a second gas conduit connecting said manual valve at a first end of said second gas conduit; a first pump connecting a second end of said second gas conduit to exhaust said gaseous effluents from processing units into said second gas conduit; a check valve connecting a third end of said second gas conduit; a third gas conduit connecting said check valve at a first end of said third gas conduit and the bottom of said scrubbing chamber at a second end of said third gas conduit to transit said gaseous effluents into said scrubbing chamber, wherein only effluents from said second gas conduit to said third gas conduit can pass said check valve; a recirculation pipe connecting the bottom of said scrubbing chamber at a first end of said recirculation pipe and the top of said scrubbing chamber at a second end of said recirculation pipe; a second pump disposed in the path of said recirculation pipe to exhaust said scrubbing liquid from the bottom of said scrubbing chamber to said filter region; a scrubbing liquid drain pipe connecting said scrubbing chamber at a level higher than said perforate plates to drain the excess scrubbing liquid.