The Product Is a Binary Mixture

The binary mixture is the separation product of three-component mixture in the case of split with a distributed component (1,2 23), including the case of preferable split and in the case of the top section at indirect separation (1,2 3). 

Let s start again with the ideal mixture (Ki K2 A3, xd3, = 0 Fig. 5.14). Reversible distillation trajectory tear-off from side 1-2 goes on in some point xlgy, defined by Eq. (4.17), at (L/L) g = (see Chapter 4). Therefore, at 

L/V (L/y) g point xd at side 1-2 cannot be the distillation top product point. Along with that, at side 1 -2 there is a stable node (Fig. 5.14a). At (L/ E) = (L/ y), the bifurcation goes on. Distillation trajectory tear-off from side 1-2 inside concentration triangle and the distillation process becomes feasible. The stable node at side 1-2 turns into a saddle in point x[. The trajectory bundle appears with saddle point S at side 1-2 and with the stable node A+ inside concentration triangle at reversible distillation trajectory in the vicinity of point x[. At further increase 

Let s note that the top product point cannot be located at sides 2-3 and 1-3 because Eq. (5.15) is not vahd for these sides (i.e., Xo i [2-3] and xd [1-3]). Let s also note that ihc separatrix sharp split region of section trajectories bundle 

L/V (L/ for top product point under consideration there is one distillation 

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