An error that occurred during the design of the low-temperature absorption tower; seeking solutions
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Block: B1 Model: RADFRAC Convergence iterations: OL ML IL Err/Tol 1 1 10 287.41 2 1 10 290.94 3 1 10 339.30 4 1 10 387.40 5 1 10 444.76 6 1 10 512.16 7 1 10 604.42 8 1 10 727.73 9 1 8 453.02 10 1 3 23.720 11 1 3 8.1140 12 1 4 14.629 13 1 4 14.450 14 1 3 0.31633 *** SEVERE ERROR THE FOLLOWING STAGES DRIED UP (VAPOR OR LIQUID FLOW APPROACHES 0): 1 2 3 4 5 6 7 8 9 10 A LIMIT OF 0.10000E-04 * SUM OF FEEDS WAS IMPOSED ON THE FLOW RATES OR A LIMIT OF 0.10000E-04 WAS IMPOSED ON THE STAGE V/L OR L/V RATIO. As stated above, these are error messages; please help me resolve them
The message indicates that there are 1 to 10 plates that have dried out; the flow rate of either the vapor or liquid phase is close to zero. Please check whether the values entered for the inlet flow rate of the liquid or gas are correct, to see if this is the cause of the problem.
The correct answer is above; during simulation, the approximate flow rate must be accurate, otherwise the aforementioned problems will occur.