Method of separating krypton-xenon concentrate from air

Details Method of separating krypton-xenon concentrate from air Method of separating krypton-xenon concentrate from air

1975-03-18

1976-07-27

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55 75, B01D 5304

Patent

active

039716406

ABSTRACT:
The method of separating krypton-xenon concentrate from air, containing 1-46 per cent by volume of krypton, 0.1 - 4 per cent by volume of xenon, 94.9 - 46 per cent by volume of nitrogen, not more than 2 per cent by volume of oxygen, and not more than 2 per cent by volume of hydrocarbons, consists in that air at a temperature of 90-110.degree.K is passed through adsorbents having the same temperature, the size of the inlet openings in the voids of the adsorbent being from 5 to 150 A. Xenon, krypton, nitrogen, oxygen, and hydrocarbons are adsorbed on this material and then said gases are desorbed from it by increasing stepwise the temperature from 90.degree.-110.degree.K to 250.degree.-280.degree.K in the course of from one to three hours and from 250-280.degree.K to 500-650.degree.K in the course of from 2 to 4 hours.

REFERENCES:
patent: 2793507 (1957-05-01), Hnilicka
patent: 3890121 (1975-06-01), Thomas

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