Cyclonic scrubber with perforated plate distributor

An improvement in a cyclonic gas-scrubber including a vertical tower shell having cylindrical portions and introduction port means for introducing a gas stream tangentially into one of said portions thereof for movement in a spiral through said tower shell toward the other of said portions, said improvement comprising:

• a cylindrical lower tower shell portion having a height at least twice the diameter thereof, said cylindrical upper tower shell portion having a diameter smaller than that of said lower portion, the bottom of said upper portion being disposed below the top of said lower portion;
• a lower annulus joining said lower portion proximate and below the top thereof to said upper portion proximate the bottom thereof, said lower annulus being perforated for spraying liquid or slurry therethrough;
• an upper annulus disposed above and spaced apart from said lower annulus and joining said lower portion of said upper portion, said upper and lower tower shell portions and said upper and lower annuli forming an annular compartment around said upper tower shell portion and proximate the bottom thereof;
• and
• conduit means for introducing scrubber liquid or slurry into said compartment and thereby through said lower annulus to said lower portion, the diameter of said upper portion being large enough for transit of said gas stream therethrough with but minimal pressure drop and for effective separation of said scrubber liquid or slurry from said gas stream to occur where the direction of flow of said gas stream is upward.