Is it better to have a high or low pressure control for the stripping tower?
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The unit is equipped with an acrylic stripping tower, which is used primarily to remove CO and some light components from acrylic. The process specifications require that the pressure be maintained within the range of 1.8–2.2 MPa. During actual production, the pressure fluctuates little. The vapor at the top of the tower is condensed in a condenser to form a liquid phase, which is then sent back to the top of the tower as reflux. CO and the light components are discharged through the upper part of the condenser. If the discharge volume remains constant, is it better to have a higher tower pressure for better removal efficiency, or a lower tower pressure?
The lower the pressure, the higher the content of light components in the gas phase. So it’s better to keep the pressure reasonably low.