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6.4.9 - Pressure Change Regeneration

Pressure change regeneration is based on reducing adsorption capacity through lowering system pressure at constant temperature. For this purpose, the adsorber is depressurised, causing the partial pressure of the contaminants to diminish materially. Such low partial pressure corresponds to a very small equilibrium capacity, at which the adsorbate is desorbed and can be removed by means of a purge gas.