Patent ID: 6228328
Filing Date: 2001-05-08
Classification: B01J,C10G,F23C

Abstract:
In a fluidized bed of particulate solids for use in a apparatus, said process including a fluidizing gas for keeping said particulate solids in a fluidized bed mode, a conduit for transferring said particulate solids into said fluidized bed and a standpipe for transferring said particulate solids out of said fluidized bed, wherein said standpipe protrudes into said fluidized bed, the improvement comprising:an inlet portion of said standpipe including an open upper of said standpipe for receiving particulate solids from said fluidized bed, said inlet portion being completely submerged in said fluidized bed; anda non-perforated disk surrounding said standpipe below said open upper end of said standpipe for trapping a portion of said fludidizing gases thereunder and inducing partial de-fluidization particulate solids thereabove.