Patent ID: 7842259
Filing Date: 2010-11-30
Classification: B01J

Abstract:
1. An apparatus for supporting a granular solid in a cross-flow system comprising: an inlet partition forming a cylindrical structure having apertures defined therein, wherein each aperture has a lower edge and an upper edge; an outlet partition forming a larger cylindrical structure having apertures defined therein, wherein each aperture has a lower edge and an upper edge and wherein the inlet partition and the outlet partition are spaced to define a particle retention volume for holding a granular solid; and a plurality of inlet shrouds defining uppermost inlet shrouds and lower remaining inlet shrouds, wherein each inlet shroud is affixed to the inlet partition at a position above an inlet aperture and covers a respective inlet aperture, and wherein each inlet shroud is affixed above the upper edges of the respective inlet aperture and extends into the particle retention volume, and each inlet shroud lower edge extends to at least the lower edge of each respective inlet aperture; wherein the uppermost inlet shrouds extend from the inlet partition at an angle from vertical between about 1 degree and about 20 degrees, and the remaining inlet shrouds extend into the particle retention volume at an angle between about 1 degree and about 85 degrees.