Control of expansion gas volume in low-pressure air separation unit inlet
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How is the control of the expansion gas volume entering the column allocated in a low-pressure full-distillation air separation unit? Can we control it more to produce more liquid oxygen?
It is not possible to simply feed the expanded air into the upper tower; firstly, this is to prevent the superheat of the expanded air from affecting the distillation process in that tower, and secondly, it is necessary to pay attention to the oxygen extraction rate, so as to avoid a situation where more air is fed in yet the amount of oxygen extracted decreases~~
However, it also depends on your process to see if it’s possible to reduce the superheat of the expanded gas~~
Strictly control the operational process parameters; adjustments can be made within the specified range, but problems will arise if the parameters go outside that range. Don’t forget that the establishment of design parameters must be based on evidence.
Are there Anyuan Air Equipment products? The expanded air enters the lower column; there is no refined argon system