| 摘要 |
An object of the present invention to provide a method and a system for separating gas based on a PSA method, in which a plurality of components contained in a gas mixture can be separated and recovered with high purities at the same time, the system is simple, the system cost is low, and the operation is easy. <??>The method for separating gas comprises the steps of: pressurizing the feed gas mixture M containing two or more kinds of main gas components, for example, air MA, is pressurized by the compressor 1; alternately repeating a step in which an oxygen enriched gas MO, which is a first main gas component, is separated as a first gas product using a first adsorbent, which does not readily adsorb the first main gas component, oxygen, and which easily adsorbs a second main gas component, nitrogen, and a step, in which a nitrogen enriched gas MN, which is a second main gas component, is separated as a second gas product using a second adsorbent, which easily adsorbs the first main gas component, oxygen, and which does not readily adsorb the second main gas component, nitrogen, and thereby the first and second gas products are yielded simultaneously from the gas mixture. <IMAGE> |
