What are the reasons for liquid accumulation in a distillation column?
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Our company’s distillation towers often experience liquid accumulation, which leads to the presence of liquid in the product stream. We hope for your support. Thank you!
Is the feed containing too many fine solid impurities? Are there large fluctuations in heat in the bottom of this tower? Large fluctuations in tower pressure can also lead to liquid accumulation.
There are no significant changes in either the tower pressure or the temperature at the bottom of the tower. The feed contains oil contaminants; could this be the reason for the liquid buildup? I hope you can provide further assistance. Thank you. Our company’s distillation tower is an ammonia distillation tower, and it is used in conjunction with ammonia absorption refrigeration systems and ice makers; oil from these systems often gets introduced into the system, and it might well be the cause of the problem. What do you think?
For a certain liquid flow rate, if the gas velocity is too high, the gas passing through the liquid layer on the plate causes an increase in the pressure drop between the two plates, preventing the liquid in the downcomer from flowing downward and resulting in flooding.