초록 ▼

A vessel for use in a pressure swing adsorption gas separation process includes an enclosing wall which defines an enclosed space having a top region and a bottom region. An annular adsorbent bed is positioned within the enclosed space and has a porous outer wall, a porous inner wall and adsorbent m

A vessel for use in a pressure swing adsorption gas separation process includes an enclosing wall which defines an enclosed space having a top region and a bottom region. An annular adsorbent bed is positioned within the enclosed space and has a porous outer wall, a porous inner wall and adsorbent material positioned between the walls. The porous outer wall is separated from the enclosing wall to create a gas feed channel therebetween, and the porous inner wall surrounds an inner tank whose wall surface is separated from the porous inner wall and creates a product flow channel therebetween. A gas feed/distribution baffle structure is positioned in the bottom region of the vessel and in fluid communication with the gas feed channel to provide a gas feed thereto. The gas feed enters the gas feed channel and the adsorbent bed via the porous outer wall and in a direction generally radially towards the inner porous wall and product flow channel. A product outlet is positioned in the bottom region and in fluid communication with the product flow channel, for collecting product gas passing thereinto via the porous inner wall from the adsorbent bed. A flexible membrane extends between the porous outer wall and the porous inner wall, at the upper extremities thereof, and is pressurized so as to bear upon the upper surface of the adsorbent material to prevent fluidization during gas flow.

대표청구항 ▼

[ We claim:] [1.] A vessel for use in a pressure swing adsorption gas separation process, comprising:enclosing wall means defining an enclosed space having a top region and a bottom region;an annular adsorbent bed positioned between said top region and bottom region within said enclosed space, havin

[ We claim:] [1.] A vessel for use in a pressure swing adsorption gas separation process, comprising:enclosing wall means defining an enclosed space having a top region and a bottom region;an annular adsorbent bed positioned between said top region and bottom region within said enclosed space, having a porous outer wall, a porous inner wall and adsorbent material positioned therebetween, said porous outer wall separated from said enclosing wall means to create a gas feed channel therebetween, said porous inner wall surrounding a chamber;inner wall means positioned in said chamber and separated from said porous inner wall to create a product flow channel therebetween;gas feed inlet means positioned at said bottom region and in fluid communication with said gas feed channel for providing a gas feed thereto, said gas feed thereby entering said gas feed channel and said adsorbent bed via said porous outer wall and in a direction generally radial towards said inner porous wall and product flow channel; andproduct outlet means positioned at said bottom region and in fluid communication with said product flow channel, for collecting product gas passing thereinto via said porous inner wall and providing an output flow thereof,wherein said enclosing wall means is separated from said porous outer wall in such a manner as to create a tapered gas feed channel and wherein said inner wall means is separated from said porous inner wall by a substantially fixed distance to create a substantially constant cross section product feed channel.