Methanol distillation
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Under what circumstances can a distillation tower develop negative pressure, and how to address it
In the absence of a heat source at the bottom of the tower, methanol will condense, creating a negative pressure inside the tower. In this case, nitrogen must be filled in a timely manner to prevent the tower from being crushed
If there isn’t enough heat in the tower base, that’s what happens; just increase the steam supply to the reboiler
2. The problem of high acid value in methanol distillation http://bbs.hcbbs.com/thread-86185-1-1.html
The methanol distillation tower can be lined with titanium, and leak holes can be added to prevent the expansion of gas in the interlayer
Haha, with an imbalance in heat flow, when adding steam it’s also necessary to take into account the quality at the top of the tower. The best approach is to reduce the flow rate of the circulating water