Iu Ahklkk

For the rectifying section, it is assumed that light nonkeys are at their limiting compositions and that heavy nonkeys are absent. For the stripping section, it is assumed that heavy nonkeys are at their limiting composition and that light nonkeys are absent.

Equations (2.46) to (2.49) can therefore be written for the zone of constant nonkey mole fraction in the rectifying section as follows:

Similarly, Eqs. (2.46) to (2.49) can be written for the zone of constant nonkey mole fraction in the stripping section as follows:

*eXK = W(1'0

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