Stabilized effluent from a hydrogenation unit as given below is to be separated by ordinary distillation into five relatively pure products. Four distillation columns will be required. According to Eq. (9.9) and Table 9.2, these four columns can be arranged into 14 possible sequences. Draw sketches, as in Figure 9.11, for each of these sequences.

Equation 9.9:-

Table 9.2:-

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Feed Flow Component Rate (lbmol/hr) Approximate Relative Volatility Relative to C5 Propane (C3) 10 8.1 Butene-1 (B1) 100 3.7 n-Butane (NB) 341 3.1. Butene-2 isomers (B2) 187 2.7 n-Pentane (C5) 40 1.0