PURIFICATION OF AIR

Purification of Air Process of reducing water, C0 2 and N 0 2 in feed air, which: a first adsorbent such as 5 alumina (25-40% volume) and a second adsorbent such as X zeolite (60-75% volume) are used; the online time of the adsorbent is determined by determining the concentration measured by an anal...

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Hauptverfasser: MOHAMMAD ALI KALBASSI, TIMOTHY CHRISTOPHER GOLDEN, CHRISTOPHER JAMES RAISWELL, ANN MARIE BOTELHO, ANTHONY FINOT
Format: Patent
Sprache:eng
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Zusammenfassung:Purification of Air Process of reducing water, C0 2 and N 0 2 in feed air, which: a first adsorbent such as 5 alumina (25-40% volume) and a second adsorbent such as X zeolite (60-75% volume) are used; the online time of the adsorbent is determined by determining the concentration measured by an analyser for C0 2 concentration at a position within the length of the second adsorbent when a maximum level of N 0 2 is simutaneously obtained at the downstream end of the second adsorbent in the feed direction, wherein the online 10 time is the time taken from commencing passing the feed air to the first and second adsorbents to the measurement by the analyser of the determined concentration of C0 ; 2 at least the second adsorbent is regenerated by heated regeneration gas at a temperature of 140°C-220°C; and the molar ratio of the regenerating gas to feed air supplied during one iteration of the cycle 0.08-0,5. is 15 FIG. 3 -43-