Page 227 - Distillation theory
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P1: FCH/FFX  P2: FCH/FFX  QC: FCH/FFX  T1: FCH
            0521820928c06  CB644-Petlyuk-v1                                                      June 11, 2004  20:17





                                6.8 Calculation of Minimum Reflux Mode for Distillation Complexes  201



























































                                Figure 6.14. Pinch zones in column with side product and intermediate and
                                stripping section trajectories for the ideal ternary mixture: (a) side product
                                composition equal to tear-off point composition; and (b) side product com-
                                position unequal to tear-off point composition. Attraction region of point N −
                                                                                       s1
                                   3
                                (Reg ) is shaded.
                                   att
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