The nitrogen plug in the crude argon column got clogged – such an unprecedented event happened, and I was the one who witnessed it.
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Hehe, this afternoon was really frustrating – only the crude argon system was in use for the argon process, but the crude argon tower was clogged with nitrogen. Does anyone know why?
By the way, at that time, the flow rate of crude argon being vented was still 800. This type of nitrogen plug is really the first time I’ve seen it.
It’s completely normal; nitrogen clogging doesn’t occur only when the pure argon tower is in use
This can definitely be done! The reason you’re controlling the argon fraction too high is..
Hehe, sometimes it’s really hard to control the level of the argon fraction. I’ve encountered extreme conditions here – the entire column is filled with nitrogen!
Nitrogen clogging can be considered a common issue; in simple terms, it’s caused by poor control of nitrogen purity, and the key to solving this problem lies in proper control of nitrogen levels
This really can exist! The root cause lies in the change in the operating conditions of the main tower.
Once the operating conditions of the main tower are stable, argon can be added again; it is best to keep the fraction at 4–5%
Let’s see how high the argon fraction is. Let’s see how high the argon fraction is
The operating conditions of the crude argon column can be controlled by adjusting the argon fraction in the main column and the flow rate of the condensation evaporator in the crude argon column. But even nitrogen clogging is a normal thing.
I’ve certainly experienced nitrogen blockages before, but this time it was a severe case – not as simple as you might think. I won’t go into the reasons; it was an extreme situation, with the liquid level rising from 200 to 1600 all at once.