Regarding argon system adjustment

The argon fraction is controlled at too low a level. We use an air separation unit with a capacity of 40,000; I can provide you with the relevant parameters for reference. The argon fraction should be kept between 8% and 10%, the flow rate of crude argon should be around 45,000, the oxygen content at the outlet of the first tower for crude argon should be between 0.5% and 1%, the oxygen content in the crude argon from the second tower should be less than 1 PPM, while the argon purity in that stream should be greater than 99.5%. I’m not sure what the flow rates are for your crude argon and process argon, respectively I think the main issue at present is that the control of the argon fraction is too low; it’s necessary to keep the flow rate of crude argon within an appropriate range and not too high, so as to increase the argon fraction – this will reduce the oxygen content at the outlet of the crude argon tower. :lol

I’m not sure what the flow rates are for your crude argon and process argon, respectively Looking forward to a reply

Is there a deviation in the purity of liquid nitrogen? Your second towers are really amazing~~ they can reduce the oxygen level from 88% to 2 ppm~~ hehe~~

It is recommended to increase the argon fraction at the extraction point of your main tower; personally, I suggest that it should not be less than 5%, with 8% being an ideal level. Also, try to keep the temperature of the oxygen-enriched liquid air as low as possible, so that more oxygen can be extracted.

The argon fraction index is 9.18%; you have set it too low, which inevitably results in a high oxygen content. Adjust the main cooler to increase the argon fraction.