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A new Lagrangian decomposition approach applied to the integration of refinery planning and crude-oil scheduling

Identifieur interne : 000662 ( France/Analysis ); précédent : 000661; suivant : 000663

A new Lagrangian decomposition approach applied to the integration of refinery planning and crude-oil scheduling

Auteurs : Sylvain Mouret [États-Unis] ; Ignacio E. Grossmann [États-Unis] ; Pierre Pestiaux [France]

Source :

RBID : Pascal:12-0010769

Descripteurs français

English descriptors

Abstract

The aim of this paper is to introduce a methodology to solve a large-scale mixed-integer nonlinear program (MINLP) integrating the two main optimization problems appearing in the oil refining industry: refinery planning and crude-oil operations scheduling. The proposed approach consists of using Lagrangian decomposition to efficiently integrate both problems. The main advantage of this technique is to solve each problem separately. A new hybrid dual problem is introduced to update the Lagrange multipliers. It uses the classical concepts of cutting planes, subgradient, and boxstep. The proposed approach is compared to a basic sequential approach and to standard MINLP solvers. The results obtained on a case study and a larger refinery problem show that the new Lagrangian decomposition algorithm is more robust than the other approaches and produces better solutions in reasonable times.


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Pascal:12-0010769

Le document en format XML

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<term>Integration</term>
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<term>Large scale</term>
<term>Mixed integer programming</term>
<term>Non linear effect</term>
<term>Non linear programming</term>
<term>Oil industry</term>
<term>Planning</term>
<term>Problem solving</term>
<term>Production management</term>
<term>Refinery</term>
<term>Scheduling</term>
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<term>Lagrangien</term>
<term>Intégration</term>
<term>Ordonnancement</term>
<term>Gestion production</term>
<term>Raffinerie</term>
<term>Echelle grande</term>
<term>Programmation partiellement en nombres entiers</term>
<term>Programmation en nombres entiers</term>
<term>Programmation non linéaire</term>
<term>Industrie pétrolière</term>
<term>Multiplicateur Lagrange</term>
<term>Méthode plan sécant</term>
<term>Optimisation sousgradient</term>
<term>Norme</term>
<term>Planification</term>
<term>Effet non linéaire</term>
<term>Méthode décomposition</term>
<term>Résolution problème</term>
<term>Etude cas</term>
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