Consider the problem of separation, by ordinary distillation, of propane, A; isobutane, B; (n)-butane, (mathrm{C}); isopentane, (mathrm{D});

Question:

Consider the problem of separation, by ordinary distillation, of propane, A; isobutane, B; \(n\)-butane, \(\mathrm{C}\); isopentane, \(\mathrm{D}\); and \(n\)-pentane, \(\mathrm{E}\). Using the heuristics of Section 9.4, develop flowsheets for:

(a) Equimolar feed with required product streams A, (B, C), and (D, E) required

(b) Feed consisting of \(\mathrm{A}=10, \mathrm{~B}=10, \mathrm{C}=60, \mathrm{D}=10\), and \(\mathrm{E}=20\) (relative moles) with products A, B, C, D, and E.

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