Pressure swing adsorption (PSA) is a technology used to separate some gas species from a mixture of gases under pressure according to the species' molecular characteristics and affinity for an adsorbent material. It operates at near-ambient temperatures and so differs from cryogenic distillation techniques of gas separation. Special adsorptive materials (e.g., zeolites) are used as a molecular sieve, preferentially adsorbing the target gas species at high pressure. The process then swings to low pressure to desorb the adsorbent material.
Read more about Pressure Swing Adsorption: Process, Adsorbents, Applications, Variations of PSA Technology, See Also
Famous quotes containing the words pressure and/or swing:
“Much of the pressure contemporary parents feel with respect to dressing children in designer clothes, teaching young children academics, and giving them instruction in sports derives directly from our need to use our children to impress others with our economic surplus. We find “good” rather than real reasons for letting our children go along with the crowd.”
—David Elkind (20th century)
“A just thinker will allow full swing to his skepticism. I dip my pen in the blackest ink, because I am not afraid of falling into my inkpot.”
—Ralph Waldo Emerson (1803–1882)