Air separation device, adsorber and method
A method of purifying air via a pre-purge unit (PPU) of an air separation unit (ASU) system having a pre-PPU cooler upstream of the PPU to cool compressed air prior to passing the compressed air to the PPU may include passing air through an adsorber of the PPU, and the air passes through the adsorpt...
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Sprache: | chi ; eng |
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Zusammenfassung: | A method of purifying air via a pre-purge unit (PPU) of an air separation unit (ASU) system having a pre-PPU cooler upstream of the PPU to cool compressed air prior to passing the compressed air to the PPU may include passing air through an adsorber of the PPU, and the air passes through the adsorption material bed layer in the container of the adsorber. In response to the pre-PPU chiller being determined to have a problem that causes the pre-PPU chiller to trip or requires the pre-PPU chiller to be offline, the ASU system should continue to be operated at full load even if nitrous oxide (N2O) in the air output of the PPU exceeds a first preselected threshold and below a second preselected threshold associated with a carbon dioxide (CO2) breakthrough. An ASU and a PPU may be designed to implement embodiments of the method.
一种经由空气分离单元(ASU)系统的预净化单元(PPU)净化空气的方法,空气分离单元系统具有位于PPU上游的预PPU冷却器,以在将压缩空气送至PPU之前冷却该压缩空气,该方法可包括以下步骤,使空气通过PPU的吸附器,以使空气通过吸附器的容器内吸附材料床层。响应于预PPU冷却器被确定存在导致预PPU冷却器跳闸或要求预PPU冷却器脱机的问题,仍应继续以满负荷运行ASU系统,即使P |
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