Does the temperature of the distillation column body exhibit a temperature gradient, and does the pressure of the column body also exhibit a pressure gradient? What to do if separation cannot be achieved?
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Does the temperature of the distillation column body exhibit a temperature gradient, and does the pressure of the column body also exhibit a pressure gradient? What to do if separation cannot be achieved?
It is normal for the temperature and pressure at the bottom and top of the tower to be different. If the separation efficiency remains poor, it may be due to issues with the tower’s design； If it suddenly stops working well, it is necessary to check whether the tower is blocked.
What you’re saying is too general. What are the temperatures? What are the pressures? What is the gradient? The main reason for poor separation efficiency lies in the design parameters, while the secondary reason is the level of operation. The specific reason is that accounting is required.
The problem has been solved. As the original poster said, in fact the material composition has changed, but operations are still carried out according to the original composition, which leads to flooding.