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Pressure swing adsorption (PSA) is used to purify hydrogen gas streams and produce 99.99% pure hydrogen. The process works by passing a hydrogen-rich feed gas through an adsorbent material, like molecular sieves, that selectively adsorbs impurities over hydrogen. The adsorbent is then depressurized to desorb the impurities. A PSA system typically operates in a rapid pressure swing using 4 to 16 adsorber vessels running in parallel. Key process parameters are the feed pressure, tail gas pressure, and desired

Author
Cristian Torrez
Language
EN