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Simulation et optimisation de procédés d'adsorption modulée en pression : formulation et résolution à l'aide de l'optimisation dynamique hybride

Abstract : The objective of the work was to develop a hybrid dynamic optimisation approach for simulation and optimisation of pressure swing adsorption (PSA) processes. It is mainly based on the hybrid formulation of the process model and on the use of adjoint system method. The simulation problem which consists in determining the cyclic steady state (CSS) is formulated as an optimisation problem where the CSS condition is considered as the performance index, initial values of state variables as decision variables and process model along with associated conditions as constraints. In optimisation, the decision vector consists of design and operation parameters in addition to the initials values of state variables whereas the CSS condition is considered in this case as a constraint to be satisfied for each optimal solution. Several process models with a varied degree of complexity have been studied. These models are isothermal and non isothermal with and without frozen states. The performance index considered are purity, recovery and energy. The results obtained are interesting vis-a-vis the performance of the processes considered as well as the robustness of the optimisation algorithm and show the great potential of the approach developed for the optimal design and operation of PSA processes
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Shahid Ayoub. Simulation et optimisation de procédés d'adsorption modulée en pression : formulation et résolution à l'aide de l'optimisation dynamique hybride. Autre. Institut National Polytechnique de Lorraine, 2010. Français. ⟨NNT : 2010INPL010N⟩. ⟨tel-01748795⟩

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