Questions about the pressure difference in distillation columns
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“When the operation of the tower does not conform to the overall material balance, this can be reflected in changes in the tower pressure difference. For example, if more material enters and less exits, the pressure difference across the tower increases. ”This sentence is excerpted from \"Q&A on Atmospheric and Vacuum Distillation Technology\". My understanding is that more fluid enters and less flows out, the load inside the tower increases, the pressure at the top of the tower rises, and as a result the pressure difference should decrease. Please ask the teachers to help me resolve my doubts.
During the normal operation of a distillation tower, the tower pressure should remain stable
Too much goes in, and too little goes out. There were no significant changes in the liquid levels in the tower bottom and the reflux tank; the material accumulated on the tray and packing, which inevitably led to a decrease in the pressure difference across the tower ；
What the book says is right: more is added and less is removed, and it’s possible that flooding has occurred. The tower pressure difference increases
Find a tube, blow air in through one end, cover the other end with your hand leaving a small hole, control the amount of air entering and exiting, and feel the pressure difference. :P