C1. Derive Eq. (8-7) for the two-column, binary, heterogeneous azeotrope system.
C2. An equation for αorg–w in w similar to Eq. (8-13) is easy to derive; do it. Compare the predicted equilibrium in water with the butanol-water equilibrium data given in Problem 8.D2. Comment on the fit. Vapor pressure data are in Perry and Green (1984). Use the data in Table 8-2 for solubility data.
C3. For a binary heterogeneous azeotrope separation, the feed can be introduced into the liquid-liquid separator. In this case two stripping columns are used.
a. Sketch the column arrangement.
b. Draw the McCabe-Thiele diagram for this system.
c. Compare this system to the system in Figure 8-3A.
C4. Sketch the McCabe-Thiele diagram for a two-pressure ...