Adsorbent fractionators with electronic sequence timer cycle con

Details Adsorbent fractionators with electronic sequence timer cycle con Adsorbent fractionators with electronic sequence timer cycle con

1979-03-30

1982-03-30

Spitzer, Robert H.

Gas separation

Means within gas stream for conducting concentrate to collector

55 33, 55 58, 55 62, 55162, 55179, 55387, B01D 5304

Patent

active

043222234

ABSTRACT:
A method and apparatus are provided for adsorbing one or more first gases from a mixture thereof with a second gas to reduce the concentration of first gas in the mixture to below a permissible maximum concentration by passing the mixture in contact with and from one end to another end of one of two beds of a sorbent having a preferential affinity for the first gas, adsorbing first gas thereon to form a gaseous effluent having a concentration thereof below the maximum, while passing a purge flow of gaseous effluent through the other of the two beds of sorbent to desorb first gas adsorbed thereon, regenerating the other bed for another cycle of adsorption; periodically interchanging the beds so that, alternately, one bed is on regeneration and the other on the adsorption portions of the cycle; timing the cycling in fixed timing intervals determined electronically by a combination of digital integrated circuitry including controlling cycling time at a period not shorter than the regeneration time; and switching the sorbent beds at the end of such cycling time. The system is particularly applicable to the drying of gases.

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