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Separation Process Engineering: Includes Mass Transfer Analysis, Third Edition by Phillip C. Wankat

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C. Derivations

C1. For a binary, multistage batch distillation with constant xdist, prove that the mass balances over the entire batch period and the Raleigh equation give identical results.

Image

(9-27)

C2. Assume that holdup in the column and in the total reboiler is negligible in an inverted batch distillation (Figure 9-8).

a. *Derive the appropriate form of the Rayleigh equation.

b. Derive the necessary operating equations for CMO. Sketch the McCabe-Thiele diagrams.

Figure 9-8. Inverted batch distillation

Image

C3. Derive Eq. (9-14).

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