Optimization of cyclically operated reactors and separators

T.L. Noorden, van, S.M. Verduyn Lunel, A. Bliek

    Research output: Contribution to journalArticleAcademicpeer-review

    12 Citations (Scopus)


    An efficient version of a numerical gradient optimization procedure for the computation of solutions to periodic optimal control problems is presented. This procedure consists of a first order gradient method in combination with the Newton–Picard shooting method. The first order gradient method is able to compute the optimal control of a periodic process under one or more nonlocal constraints, such as a minimum purity constraint. The Newton–Picard method computes very efficiently periodic solutions to the state and adjoint equations. The presented numerical procedure is used to optimize a rapid pressure swing reactor and a rapid pressure swing adsorber. It is shown that the optimal cycle scheme consists of four steps: a no-inflow pre-pressurization step, a pressurization step, a no-inflow post-pressurization step, and a depressurization step.
    Original languageEnglish
    Pages (from-to)4115-4127
    JournalChemical Engineering Science
    Issue number18
    Publication statusPublished - 2003


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