Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1976-10-21
1978-08-01
Hart, Charles N.
Gas separation
Means within gas stream for conducting concentrate to collector
55 25, 55 58, 55 62, 55 73, B01D 5304
Patent
active
041040392
ABSTRACT:
A process for concentrating or liquefying a specified component of a gaseous mixture, characterized by a combination of a step comprising passing a starting gaseous mixture containing a dilute gaseous substance to be selectively separated into one adsorbing layer of an adsorbing device consisting of a pair of adsorbing layers to allow it to adsorb the gaseous substance to be selectively separated, releasing the remainder of the gaseous mixture, and before the amount of the adsorbed gas in the adsorbing layer reaches saturation, switching the passing of the starting gaseous mixture over to the other adsorbing layer; a step comprising maintaining the pressure of the inside of the adsorbing layer which has adsorbed the gaseous substance lower than the pressure of the starting gaseous mixture fed, feeding a part of the gas released from the other adsorbing layer or an inert gas from outside the system to desorb the adsorbed gas, again passing the starting gaseous mixture after the end of desorption, and switching the desorption of the adsorbed gaseous mixture over to the other adsorbing layer; and a step comprising mixing the desorbed gas with the starting gaseous mixture either directly or after separation of the resulting liquefied gas, and recycling and passing the gaseous mixture through the adsorbing layer; wherein the recycling is repeated until the concentration of the specified component in the recycle gas to be passed into the adsorbing layer reaches the desired concentration or said component is liquefied, and the specified component having attained the desired concentration or the liquefied specified component is continuously recovered to maintain the gas recycling system always in balance and steady state.
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patent: 3876397 (1975-04-01), Taylor
Fuwa Sinji
Kuri Setuya
Chlorine Engineers Corp.
Hart Charles N.
Kuri Chemical Engineers Incorporated
Spitzer Robert H.
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