US3703797A
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Adsorption process for the complete and non-dissipative separation of a gas mixture into adsorbable and non-adsorbable, in particular radioactive components
Abstract Process for the complete separation of an adsorbable gas component A from another substantially non-adsorbable gas component B in at least two adsorption zones 1 and 2 arranged one behind the other, comprising the following steps: A. IN THE FIRST STEP THE ADSORPTION ZONE 1 IS LOADED UNTIL COMPLETELY SATURATED WITH THE COMPONENT A; b. in the second step the feed gas in the interstitial volume of adsorption zone 1 is displaced with pure component A from a storage means and the sweeping gas, optionally together with the feed gas is delivered to the partially unloaded zone 2; C. IN THE THIRD STEP THE PURE COMPONENT A is liberated by heating of zone 1 and is delivered to a storage means. Thereafter the aforesaid steps are repeated however with interchanged functions of zones 1 and 2.
Process according to claim 1, wherein the replaced gas and the sweeping gas are fed into the second adsorption zone together with feed gas.
Claim 2
Dependent Claim
52 words
Process according to claim 1, wherein at least three adsorption systems are arranged one behind the other to provide said adsorption zones, step a) is simultaneously performed in two of said adsorption systems connected in series with each other and steps b) and c) are successively performed in the third adsorption system.
Claim 3
Dependent Claim
20 words
Process according to claim 1, wherein CO2 and noble gases are completely separated and wherein the sweeping gas is CO2.
Claim 4
Dependent Claim
42 words
Process according to claim 1 wherein steps a) and b) are simultaneously performed and the partially unloaded second adsorption zone to which the products of step b) are delivered is the same as the first adsorption zone referred to in step a).