| 摘要 |
<p>An air separation apparatus comprises a compressor (2) having stages (4, 6, 8 and 10) in series, a first outlet (16) from a chosen stage (8) upstream of a final stage (10) of the compressor (2), a second outlet (40) from the final stage (10) of the compressor (2), an air purifier (18) having an inlet communicating with the first outlet (16) and an outlet (24) communicating with first and second flow paths (26 and 36) in parallel with one another, wherein the first flow path (26) leads via a heat exchanger (28) to at least one rectification column (30) for separating the air, and the second flow path (36) leads via the stage (10) to the second outlet (40).</p> |
