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Deterministic global optimization of binary hybrid distillation/melt-crystallization processes based on relaxed MINLP formulations
Abstract This paper deals with the deterministic global optimization of hybrid distillation/melt-crystallization processes for closely boiling mixtures. An algorithm is presented that exploits the problem specific structure of continuous, counter-current distillation to reduce the domain of the corresponding mixed-integer nonlinear program (MINLP). We apply a bound tightening technique based on the explicit computation of extreme column solution profiles, which enclose all possible solutions of the distillation column model. A relaxed MINLP model formulation is then used to exclude several non-optimal and infeasible column configurations. The numerical performance of the proposed algorithm is demonstrated on a test series of stand-alone distillation column processes and hybrid separation processes.
Deterministic global optimization of binary hybrid distillation/melt-crystallization processes based on relaxed MINLP formulations
Abstract This paper deals with the deterministic global optimization of hybrid distillation/melt-crystallization processes for closely boiling mixtures. An algorithm is presented that exploits the problem specific structure of continuous, counter-current distillation to reduce the domain of the corresponding mixed-integer nonlinear program (MINLP). We apply a bound tightening technique based on the explicit computation of extreme column solution profiles, which enclose all possible solutions of the distillation column model. A relaxed MINLP model formulation is then used to exclude several non-optimal and infeasible column configurations. The numerical performance of the proposed algorithm is demonstrated on a test series of stand-alone distillation column processes and hybrid separation processes.
Deterministic global optimization of binary hybrid distillation/melt-crystallization processes based on relaxed MINLP formulations
Ballerstein, Martin (author) / Kienle, Achim (author) / Kunde, Christian (author) / Michaels, Dennis (author) / Weismantel, Robert (author)
Optimization and Engineering ; 16 ; 409-440
2014-10-18
32 pages
Article (Journal)
Electronic Resource
English
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