Reflux tank pressure
Thread Content
Can the pressure in the reflux tank be higher than the tower pressure? Why?
It seems unlikely; I’ve never seen it. Waiting for a master. . .
This phenomenon is impossible; the return pipe is generally used to carry the condensate from the heat exchanger. If the pressure of the condensate is higher than that in the tower, then the gas in the tower cannot enter the heat exchanger. An excessively high tower pressure leads to instability in the distillation tower, resulting in poor distillation efficiency.
It’s unlikely; it’s generally not set up this way
No, the pressure in the tower is primarily controlled by the reboiler at the bottom of the tower and the condenser at the top
The reflux tank doesn’t seem to have much pressure, right? Could it be that the gas was released and froze, causing pressure to build up inside?
This is the reason for the poor condensation effect, which leads to pressure buildup in the reflux tank.
The pressure in the reflux tank should be the same as that in the tower, right?
Under normal conditions, the pressure in the reflux tank is lower than the tower pressure
The pressure in the reflux tank is higher than that in the tower; how does the material flow down?
The pressure in the reflux tank should be slightly lower than that in the distillation tower； In a positive-pressure distillation column, there is a vapor equilibrium line on the reflux drum that connects to equipment outside the column (equipment whose pressure is lower than that of the distillation column) ； In negative pressure distillation columns, a vacuum piping system is generally connected to a vacuum pump on the reflux tank; this design is intended to facilitate the entry of the light-component vapor inside the column into the condenser, where it is condensed to form reflux liquid ； If the pressure in the reflux tank is higher than that inside the distillation tower, the light-component vapor in the tower cannot enter the condenser, causing the liquid level in the reflux tank to drop sharply and preventing normal operation. These are just my personal opinions; I look forward to experts providing guidance.