| 摘要 |
<p>The gas mixture to be separated, at a first temperature (Ta), is compressed, cooled to a second temperature (To), purified from condensable impurities in an insulated vessel (15) comprising means (12, 13) for controlling a third temperature (T1) in the vessel, and is then conveyed to at least one permeation module with a membrane (18i), arranged in a second insulated vessel (16) comprising means (26, 27) for controlling a fourth temperature (T2) in the second vessel, the line (21) for conveying the gas mixture to the permeation module being provided with a controlled heating device (22). Application especially to the production of nitrogen from air. <IMAGE></p> |
