Cold material enters the tower
Thread Content
Some cold material entered the tower, causing the original tower liquid level and the liquid level in the reflux tank to become unstable. The operation of the bottom pump of the tower led to fluctuations in the flow rate returning to the tower, which in turn caused continuous fluctuations in both the tower liquid level and the liquid level in the reflux tank, with amplitude of around 2 percent. May I ask how to deal with a flow of cold material entering the tower?
After feeding cold material, increase the reboiler load and reduce the reflux load.
Increase the reboil volume in advance and appropriately raise the reflux ratio
Introducing cold material will affect the balanced operation of the tower, and adjustments must be made depending on the specific circumstances. When the temperature of the tower changes, increase the bottom temperature and appropriately reduce the reflux rate, as excessive changes can affect the distillation efficiency. In case of pressure changes, adjust the opening degree of the pressure control valve promptly. Adjust the production volume in a timely manner in response to changes in liquid level