Abstract

Dynamic simulation provides the process design and process control engineer with a highly effective tool to analyze process transients. When applied in the conceptual phase of a new process design, dynamic simualtion can be used to determine the optimum design of a proces by simultaneously considering steady-state economics and plant-wide controllability. A methodology is shown how rigorous dynamic process simulation can be used as a tool to effectively integrate the process design and process control disciplines. Illustration on extractive distillation systems demonstrate that this analysis leads to an optimum economic process design with a robust simple single-input single-output regulatory control scheme that meets process operability requirements.

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