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Process Circuit Analysis                                      135

            Table 3.5.3 continued

               m
            Xs/ 3 =  X4,6 nu                                           (3.5.13)
            XA  Ys,4 m 3 + X B y 3>5 m 3 = y 4, 7' m,                  (3.5.14)
            y 3,i' + yw + y 3,4 + x^ + xw' = 1                              (3.5.15)


            X4,l +  Y4,2 +  y4,3 +  Y4,4 +  Y4.5 +  X4,6 +  Y4,?' =1   (3.5.16)
            Variables

            X A - X B - Y3,3 - X3,4 - X3.5, - X4,l - y4,2 - Y4.3 ' Y4,4 - Y4,5 - Y4,6  - H1 3 - m 4
            Degrees of Freedom
            F=13-9 = 4

            CONDENSER-SEPARATOR
            (the  system includes H-1, 2, 3,4 and PS-1)

            Mole Balances

            X4,i  "it  = y 7,i m 7                                     (3.5.17)
                                                                       (3.5.18)

                , = y?,3 m 7                                           (3.5.19)
                                                                       (3.5.20)
            y 4, 4 nx, = y 7>4 m 7
            X4,s m,  = y 7, 5 m 7                                      (3.5.21)

            X4.6 m4  =  X?,6 m 7                                       (3.5.22)
            y 4, 7' nit  =  y&,7  m«                                   (3.5.23)

            y 6>7 'm 6 =1000                                           (3.5.24)

            X4,l  + X4,2 +  Y4,3 +  Y4,4 +  Y4,5 +  Y4,6 +  Y4,?' =1   (3.5.25)
                                                                       (3.5.26)
                                 1                                     (3.5.2?)










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