Understanding the dynamic behaviour of semicontinuous distillation

Semicontinuous, ternary distillation was first envisioned using a single distillation column and a middle vessel (MV) in the seminal work by Phimister and Seider. In the “sequential design methodology” introduced by Pascall and Adams for semicontinuous distillation, firstly, a steady state side-stream column that only meets the distillate and bottoms product purity specification is designed. Then by recycling the side-stream to the MV, the …