[article] 
inIndustrial & engineering chemistry research > Vol. 49 N° 17 (Septembre 1, 2010) . - pp 7909–7921

Titre :	Simultaneous scheduling and control of multiproduct continuous parallel lines
Type de document :	texte imprimé
Auteurs :	Antonio Flores-Tlacuahuac, Auteur
Année de publication :	2010
Article en page(s) :	pp 7909–7921
Note générale :	Chimie industrielle
Langues :	Anglais (eng)
Mots-clés :	Simultaneous scheduling Parallel lines.
Résumé :	In this work, we propose a simultaneous scheduling and control optimization formulation to address both optimal steady-state production and dynamic product transitions in multiproduct parallel continuous stirred tank reactors (CSTRs). The simultaneous scheduling and control problem for multiproduct parallel continuous reactors is cast as a mixed-integer dynamic optimization (MIDO) problem. The reactor dynamic behavior is described by a set of nonlinear ordinary differential equations (ODEs) that are combined with the set of mixed-integer algebraic equations representing the optimal scheduling production model. The proposed simultaneous scheduling and control approach avoids suboptimal solutions that are obtained when both problems are solved in a decoupled way. Hence, the proposed optimization strategy can yield improved optimal solutions. The simultaneous approach for addressing the solution of dynamic optimization problems, based on orthogonal collocation on finite elements, is used to transform the set of ODEs into a mixed-integer nonlinear programming (MINLP) problem. Three multiproduct CSTRs are used to test the simultaneous scheduling and control optimization formulation.
DEWEY :	660
ISSN :	0888-5885
En ligne :	http://pubs.acs.org/doi/abs/10.1021/ie100024p

[article] Simultaneous scheduling and control of multiproduct continuous parallel lines [texte imprimé] / Antonio Flores-Tlacuahuac, Auteur . - 2010 . - pp 7909–7921.
Chimie industrielle
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 49 N° 17 (Septembre 1, 2010) . - pp 7909–7921

Mots-clés :	Simultaneous scheduling Parallel lines.
Résumé :	In this work, we propose a simultaneous scheduling and control optimization formulation to address both optimal steady-state production and dynamic product transitions in multiproduct parallel continuous stirred tank reactors (CSTRs). The simultaneous scheduling and control problem for multiproduct parallel continuous reactors is cast as a mixed-integer dynamic optimization (MIDO) problem. The reactor dynamic behavior is described by a set of nonlinear ordinary differential equations (ODEs) that are combined with the set of mixed-integer algebraic equations representing the optimal scheduling production model. The proposed simultaneous scheduling and control approach avoids suboptimal solutions that are obtained when both problems are solved in a decoupled way. Hence, the proposed optimization strategy can yield improved optimal solutions. The simultaneous approach for addressing the solution of dynamic optimization problems, based on orthogonal collocation on finite elements, is used to transform the set of ODEs into a mixed-integer nonlinear programming (MINLP) problem. Three multiproduct CSTRs are used to test the simultaneous scheduling and control optimization formulation.
DEWEY :	660
ISSN :	0888-5885
En ligne :	http://pubs.acs.org/doi/abs/10.1021/ie100024p