Method of removing finely divided solids from gas

Details Method of removing finely divided solids from gas Method of removing finely divided solids from gas

B - Operations, Transporting

01

D

183/82

B01D 46/38 (2006.01) B01D 46/32 (2006.01)

Patent

CA 1037882

METHOD OF REMOVING FINELY DIVIDED SOLIDS FROM GAS ABSTRACT OF THE INVENTION Finely divided solids are removed from a feed gas by passing the gas through an elongated annular mass of solid particle form contact material held between two generally concentric cylindrical walls. The outer wall is louvered having vanes outwardly inclined to the vertical at 15 to 80 degrees and the louver openings are of such width that most of the particles of con- tact material are capable of passing through them. The inner wall is perforated to permit passage of gas through the wall and may be louvered similarly to the outer wall but having the louver vanes inwardly inclined. The finely divided solids are entrained or trapped in the mass of contact material which is moved downwardly through and out of the annular space between the two con- centric cylindrical walls. The contact material is then treated to separate entrained finely divided solids and returned to the upper end of the annular space. Movement of the contact material through the annular space causes a small portion of it to pass through the louvers of the outer cylindrical wall preventing plugging of the louvers which would otherwise be caused by accu- mulation of the finely divided solids contained in the feed gas. Gas having reduced solids content is withdrawn from the space enclosed by the interior cylindrical wall. Apparatus for making the separation is described.

236468

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