FIELD: chemistry.
SUBSTANCE: method of separating inert gases from gases containing at least argon, xenon, krypton, nitrogen and hydrogen includes cooling a starting gas stream, liquefaction and separation via single-step fractionation. Said fractionation is carried out to obtain liquid separation products: argon and a krypton-xenon mixture, and gaseous separation products: nitrogen, mixture of carbon-nitrogen oxides and a nitrogen-hydrogen mixture. Before fractionation, a large part of the gas stream after cooling is condensed, separated and supercooled, and the smaller part is compressed before cooling. The mixture of carbon-nitrogen oxides is subjected to catalytic oxidation of carbon monoxide to obtain carbon dioxide, nitrogen and water at the output, and hydrogen is separated from the nitrogen-hydrogen mixture. An apparatus for separating inert gases is described.
EFFECT: reduced harmful emissions and extraction of valuable components - inert gases - from tail gases.
10 cl, 1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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| METHOD OF PRODUCING KRYPTON-XENON MIX AND DEVICE TO THIS END | 2009 |
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