aspen求助

qs145

INFORMATION
      THERE ARE HENRY COMPONENTS DEFINED IN THIS CASE, THE BINARY DATABANK
      WILL BE SEARCHED AUTOMATICALLY FOR ANY AVAILABLE HENRY CONSTANTS.

      THE PAIR PARAMETERS FOR ELECNRTL OPTION SET HAS BEEN RETRIEVED FROM
      DATABANK ENRTL-RK.

  Flowsheet Analysis :

COMPUTATION ORDER FOR THE FLOWSHEET:
ABS

->Calculations begin ...


   Block: ABS      Model: RADFRAC

       Convergence iterations:
         OL   ML   IL     Err/Tol
          1    1    1     0.11885E-09
          2    1    1     0.33004E-10
          3    1    1      0.0000
  *** SEVERE ERROR
      MATERIAL AND ENERGY BALANCES FAILED TO CONVERGE: CHECK COL-SPECS
      OR SUPPLY BETTER TEMPERATURE AND COMPOSITION ESTIMATES.

  *** SEVERE ERROR
      THE FOLLOWING STAGES DRIED UP:
        3    8
      A LIMIT OF  0.10000E-04 * SUM OF FEEDS WAS IMPOSED ON THE FLOW RATES.


  **  ERROR
      BLOCK ABS IS NOT IN MASS BALANCE:
      MASS INLET FLOW = 0.83411829E+05, MASS OUTLET FLOW = 0.83482962E+05
      RELATIVE DIFFERENCE = 0.85278774E-03

  *   WARNING
      STREAM LOUT IS NOT IN CHARGE BALANCE:
      ANION FLOW = -.13916486E+01, CATION FLOW = 0.13802294E+01
      ABSOLUTE DIFFERENCE = -.11419193E-01 RELATIVE DIFFERENCE = -.82734022E-02


->Simulation calculations completed ...



  ***  No Warnings were issued during Input Translation ***


               ***  Summary of Simulation Errors  ***

                   Physical
                   Property         System        Simulation
  Terminal Errors      0               0               0
    Severe Errors      0               0               2
           Errors      0               0               1
         Warnings      0               0               1

qs145

请各位ban帮忙看看，谢谢