Patent ID: 7621988

Claim:
An apparatus for supporting a granular solid in a cross-flow system comprising: an inlet partition having apertures defined therein, where each aperture has a lower edge and an upper edge; an outlet partition having apertures defined therein, where 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; at least one inlet louver, where each louver has an upper edge and a lower edge, and the louver upper edge is affixed to the inlet partition at a position above an inlet aperture, the louver lower edge extends into the particle retention volume at an angle between about 1 degree and about 85 degrees, and the louver lower edge extends to at least the aperture lower edge; and at least one baffle affixed to each louver on the under side of the louver, and where the baffle projects substantially perpendicular from the louver, wherein the baffle affixed to the louver is a first baffle, and further comprising a second baffle affixed to the inlet partition disposed in a position between the louver and the inlet partition and below the lower edge of the inlet aperture.