4. Ternary diagrams of residual curve networks
The analysis of ternary residue curve diagrams is at the heart of design tools for azeotropic or extractive distillation units for non-ideal mixtures. The addition of one-third body E to the A-B mixture enables ternary A-B-E diagrams to be plotted and analyzed graphically.
4.1 Representation of ternary liquid-vapor equilibria
The three-dimensional representation of the bubble [Tb,p (x )] and dew [Td,p (y )] surfaces as shown in figure 10a is the most complete but is difficult to exploit. For its part, the projected equilibrium vectors (y ′, x ′ ) at constant temperature T' in the composition triangle remain difficult to read (figure
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Ternary diagrams of residual curve networks
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