| 摘要 |
The invention discloses method and apparatus for achieving higher O2 delivery pressure coupled with high product recovery in cryogenic air distillation plants, without additional power consumption. Products include high purity oxygen plus coproduct argon, or medium purity oxygen plus optional coproduct nitrogen. Compander driven compressor (5) boosts the pressure of a minor fraction of air which totally condenses to evaporate LOX in evaporator (6), and liquid air is split into 2 intermediate refluxes.
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