Abstract: The adsorber vessel is configured for radial flow between a center column and a perimeter manifold. Space between the center column and the perimeter manifold contains adsorption media. End caps close off ends of the vessel. An inlet and an outlet are configured within one of the end caps to feed starting gas into the center column or perimeter manifold, and to draw off product gas from the perimeter manifold or center column. An end cap can be removed to provide access for media loading between the center column and the perimeter manifold. Media is preferably provided within cartridges which can slide into this media space. Cartridges can be concentric with one cartridge inboard of the other, or can be stacked vertically. A spring plate can be provided on an open end to hold the media in position, while sealing the open end of the adsorber vessel.

Abstract: The adsorber vessel is configured for radial flow between a center column and a perimeter manifold. Space between the center column and the perimeter manifold contains adsorption media. End caps close off ends of the vessel. An inlet and an outlet are configured within one of the end caps to feed starting gas into the center column or perimeter manifold, and to draw off product gas from the perimeter manifold or center column. An end cap can be removed to provide access for media loading between the center column and the perimeter manifold. Media is preferably provided within cartridges which can slide into this media space. Cartridges can be concentric with one cartridge inboard of the other, or can be stacked vertically. A spring plate can be provided on an open end to hold the media in position, while sealing the open end of the adsorber vessel.