Chia, DN; Sorensen, E; (2022) Optimal Design of Hybrid Distillation/ Pervaporation Processes. In: Computer Aided Chemical Engineering. (pp. 313-318). Elsevier

Text Chia and Sorensen - 2022 - PSE2021 conference.pdf - Published Version Access restricted to UCL open access staff Download (5MB)

Abstract

Hybrid distillation/pervaporation processes have the potential to reduce the energy consumption and cost of standard distillation for difficult separations such as that of azeotropic systems. Current optimization strategies for such hybrid processes either considers only a simplified membrane system or requires repeated (sequential) optimization for each potential number of membrane stages. This work proposes a superstructure optimization strategy for the optimal design of hybrid distillation/pervaporation processes, and discusses different solution alternatives for how to handle the integer nature of the membrane network, as well as proposes a procedure for systematic initialization, simulation, and optimization of the process. The strategy is illustrated for an azeotropic separation, demonstrating that the optimal design can be obtained in a fraction of the time compared to repeated simulation.

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