General oxygen extraction rate by air separation
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General oxygen extraction rate by air separation
For example, how much oxygen is produced when 100,000 of air is introduced?
The current extraction rates are quite high; generally, the minimum rate is around 95% (which is still due to problems with the distillation tower), while the higher rates are usually around 98% or 99%. After deducting the bypass air volume from an air flow rate of 100,000, it should still be possible to extract around 18,000–19,000 units (which is still quite low, as a relatively large amount of bypass air is being deducted).
It depends on whether there is a auxiliary tower for nitrogen extraction‘
It’s not certain that nitrogen is present; the presence of an argon column also affects the oxygen extraction rate.
Have you seen air separation units without auxiliary towers? ~~
It’s no problem to achieve an oxygen extraction rate of over 90% these days~~ As for the factors that affect the oxygen extraction rate, one is the purity of gaseous nitrogen and impure nitrogen; the higher the purity (the lower the oxygen content), the better； Second is the control of the amount of expanded air entering the tower; one should not simply reduce the bypass air, as this will lead to a decrease in the oxygen extraction rate, resulting in losses that outweigh any benefits ； Third is the stable operation of the argon system~~
70~90%, varying depending on the design and operating method
This post was last edited by hait3202843 on 2016-2-25 02:45. When not much nitrogen is used, the air separation unit may lack a top auxiliary tower for extracting nitrogen to be sent out as a product. Floor 5 is supported.
As long as the process does not require low-pressure nitrogen, there is no need for a secondary tower; that’s how we do it here
Was no nitrogen removed from the top? Did you leave a message? ~~