Problems with pump pressure and tower pressure
Thread Content
I would like to ask the experts: since the pressure in the desulfurization tower has been adjusted from the designed value of 6 MPa to 5 MPa due to process adjustments, and the centrifugal pump still operates at 7 MPa, does it be necessary to adjust the circulation rate? Does it have an impact on absorption? The tower is a plate-type trapezoidal floating valve tower
Generally, a decrease in column pressure is unfavorable for absorption; meanwhile, an increase in gas flow rate at constant load further hinders absorption. Theoretically, it would be appropriate to increase the circulation rate. However, with both the gas flow rate and circulation rate increased, the load on the tower plates rises, bringing them closer to the point of flooding