Gas/solids contact apparatus includes a tower-like, vertical vessel divided by internal wall structures into three axially-extending, concentric spaces. An inner space, typically of generally circular cross section and extending along the axis of the vessel, receives the gas which is to be contacted with particulate solids. An intermediate space, which may have a variety of configurations, surrounds the inner space and, during operation the contactor, contains a downwardly moving bed of solids. An outer space, typically of annular configuration, surrounds the intermediate space and serves to collect gas which flows from the inner space, generally horizontally through the moving bed of solids and then into the outer space for discharge through a gas outlet. In a preferred embodiment the moving bed of solids is contained by louvered walls, and these walls are constructed as modules which can be arranged to provide contactors having different gas and solids handling capacities.
展开▼
