Question: A five-component mixture, ABCDE, in order of decreasing volatility, is to be separated. The total flow rate is 1 kmol/s, and the composition is as

A five-component mixture, ABCDE, in order of decreasing volatility, is to be separated. The total flow rate is 1 kmol/s, and the composition is as follows (A B C D E)5(0.2 0.4 0.1 0.1 0.2):

Regular distillation,

αAB52; αBC51:7; αCD51:5; αDE51:04 ðABCDEÞ;

Extractive distillation,

αAC52:5; αAB52:4; αCB52; αBD52; αDE51:7 ðACBDEÞ:

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