If the feed rate to the distillation tower remains constant, how can the pressure at the bottom of the tower be reduced effectively?
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How can the bottom pressure of a distillation tower be effectively reduced while keeping the feed rate constant?
Reduce the top pressure of the tower and lower the temperature at the bottom of the tower
Simply reducing the top pressure of the tower has already altered the operating conditions. I think what the original poster is asking about is whether it refers to a large pressure difference between the top and bottom of the tower, which leads to a decrease in the tower’s pressure. It is recommended to keep the feed rate unchanged and to appropriately reduce the steam supply to the tower. It’s likely that the composition of the materials has changed.
As mentioned on the 4th floor, when the materials change, the balance inside the tower changes as well; both the top pressure and top temperature need to be adjusted, along with the amount taken out via the side stream, right!
Was it a change in the amount of material in the gas-liquid phase that caused the pressure imbalance?