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- W4379883352 abstract "Extractive Distillation (ED) and Solvent-assisted Pressure-swing Distillation (SA-PSD) are both special distillation processes that perform good at separating pressure-insensitive azeotropes. However, few reported studies have compared the performance of the two processes. In this paper, ED processes with NMP and DMCA as entrainer, SA-PSD process with isopropyl-alcohol(IPA) as solvent and SA-PSD process with partial heat integration (PHI-PSD) are proposed to achieve high purity separation of a mixture of cyclohexane/2-butanol system. The optimal operating conditions of the processes are obtained after optimizing with NSGA-II algorithm when total annual cost (TAC) and the entropy production of process are set as objectives. The optimal results show that the optimal PHI-PSD process has lower total annual cost (TAC) by 28.7% and the lower entropy production by 39.5% than the optimal SA-PSD process while the ED process with NMP as entrainer has lower TAC by 50.9% and the lower entropy production by 56.1% than the optimal SA-PSD process. The optimal results show that the ED process with NMP as entrainer has the best economic and thermodynamic efficiency among the four proposed processes in this paper." @default.
- W4379883352 created "2023-06-09" @default.
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- W4379883352 date "2023-06-01" @default.
- W4379883352 modified "2023-09-23" @default.
- W4379883352 title "Economic and entropy production evaluation of extractive distillation and solvent-assisted pressure-swing distillation by multi-objective optimization" @default.
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- W4379883352 doi "https://doi.org/10.1016/j.cjche.2023.04.017" @default.
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