Gas separation: processes – With control responsive to sensed condition – Temperature sensed
Patent
1998-07-22
2000-02-29
Spitzer, Robert
Gas separation: processes
With control responsive to sensed condition
Temperature sensed
95 19, 95 96, 95130, 96112, 96113, 96130, 96144, B01D 53047
Patent
active
060304359
ABSTRACT:
A PSA process for the separation of a gas flow containing essentially oxygen and nitrogen by preferential adsorption of the nitrogen, at a high adsorption pressure, on at least one bed of adsorbent material inserted in at least one separation zone. The material preferentially adsorbs nitrogen. Each bed of adsorbing material is subjected to successive separation cycles. Each separation cycle comprises at least: a purge phase comprising a desorption of the nitrogen adsorbed on the adsorbing material at a low desorption pressure below the high adsorption pressure, and a supply phase comprising introduction of the gaseous flow at a supply temperature (T.sub.sup) into the separation zone with passage from the low desorption pressure to the high adsorption pressure. The supply temperature (T.sub.sup) of the gaseous flow to be separated is regulated and the high adsorption pressure is adjusted.
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Derive Nathalie
Monereau Christian
Montfort Christophe
Rouge Dominique
L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation de
Spitzer Robert
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