Reinforces that distillation performance emerges from a chain of coupled decisions, not a single still label.
The chapter closes ideal-mixture analysis with system-level sequence and design logic.
Separating n components into pure products requires at least n−1 columns, while the number of possible sequences rises rapidly. The proposed conceptual workflow starts with feed and equilibrium data, defines the key split and recoveries, computes product flows and limiting ratios, evaluates concentration profiles and feed location, and then optimizes reflux and equipment by cost.
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4.5–4.6, Separation sequences and conceptual design
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