Question: Two separation columns in sequence are used to separate the components of a feed consisting of 25% benzene (B), 50% toluene (T), and remaining xylene

Two separation columns in sequence are used to separate the components of a feed consisting of 25% benzene (B), 50% toluene (T), and remaining xylene (X). The analysis of the overhead stream from the first column yields 90% B, 5% T, and remaining X. The second column is designed to recover 85% of the toluene in the original feed in its overhead stream at a composition of 0.946. The bottoms at the second column are intended to contain 85% of

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