| 摘要 |
In a method for producing oxygen through the distillation of air supplied by air at atmospheric pressure so as to produce a first and second compressed air flow, and through a first purification unit (5) and a second purification unit (7), the first and second compressed air flows at different pressures: the first compressed air flow is sent from a first outlet of the compression means to the first purifying unit at the first pressure; the first purified air flow is sent to a column of the column system (15); the second purified air flow is sent, in an at least partially condensed form, from the second purifying unit to the column system; an oxygen-rich liquid is bled off the column system; said oxygen-rich liquid is vaporized through heat exchange with at least the second purified air flow. |
