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1 Equilibrio:      yy yxx xy  111 Flash  11  i i i k zx   11   i ii i k zky   T,P Rachford-Rice:     011 1 )(    i ii k kzf    T, %recupero k k k k Fz VyRRV  ; k k k Fz LyRRL  ; k k k Lx VySF  ; 1 k k k SF SFRRV ; 1 1  k k SFRRL ; k k k k k RRL RRL RRV RRVSF  1 1 ;   iTiiiiiiikiki xPPxLyVLVRRLRRVSFSF 0 )(,,,,,  P,α Rachford-Rice:     011 1 )(    i ii T k kzf   P,RRVr     01 )(    rrri ii T kRRVkk kzf  P,Q=0       T hhh k kz FLV i ii , 01 011 1            Flash con due fasi liquide F V ; 21 1 LL L       1 2 1 1 111 i i i i i kk k zx         2 1 2 2 111 i i i i i kk k zx    2         21 11111 ii i i kk zy  T,P                , 0 111 1 0 111 1 1 2 1 2 1 1 2 1 1                          i i i i i i i i i ii kk k k kz kk k kz Distillazione binaria Retta di lavoro superiore: 11 1   R xxR Ry D nn Retta di lavoro inferiore: Bmm xV BxV Ly '' ' 1   q-line: 11  q zxq qy F con F LL hh hhq LV FV   ' Pinch point:   ii iD iD iD ii F xy yxRxx yx R Rxy q zxq qy x xy            min min min 1, 11 11    Metodo grafico di McCabe-Thiele …  Metodo analitico Eq. Riccati: 011   cbxaxxx nnnn Soluzione:              baxb a bax n n    2 11 2 11 0 con     2 4 2 cbaba  Per il tronco superiore: 1 1  a ;    R R R xb D     1 1 ;  1 R xc D DnF xxxx  ;0 Dopo aver trovato Ns e averlo approssimato all’intero superiore, si ricava xF-. 3 Per il tronco inf: 1 1  a ;                  qF DR F BqF DRxF B b B 1 1   ; …

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