Patent ID: 6299826
Filing Date: 2001-10-09
Classification: B01J,C21B,Y02P

Abstract:
A gas plenum assembly for a fluidized bed apparatus, comprising:a structure defining one or more side and base walls of a plenum chamber;means defining an inlet for gas to enter said chamber, arranged so that said gas flows upwardly into said chamber from said inlet;distributor means overlying said chamber and having multiple openings through which said gas exits said chamber for forming a fluidized bed above said distributor means; andgas flow spreader means disposed between said inlet and said distributor means for spreading said gas flow among said openings, said gas flow spreader means having a plurality of flow apertures for said gas flow therethrough, and wherein said gas flow spreader means and said flow apertures are sized and arranged to substantially reduce cross-flow velocity of said gas at said openings.