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Improved short-term batch scheduling flexibility using variable recipes / Elisabet Capon-Garcia in Industrial & engineering chemistry research, Vol. 50 N° 9 (Mai 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 4983-4992 Titre : Improved short-term batch scheduling flexibility using variable recipes Type de document : texte imprimé Auteurs : Elisabet Capon-Garcia, Auteur ; Marta Moreno - Benito, Auteur ; Antonio Espuna, Auteur Année de publication : 2011 Article en page(s) : pp. 4983-4992 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Flexibility  Scheduling  Batchwise  Short  term Résumé : Batch scheduling and control decision levels are usually optimized separately, even though integrated decisions would potentially increase the overall performance of the plant. This work aims at including in the scheduling problem the operating conditions related to the control function, which are traditionally optimized and fixed beforehand, to shed light to the benefits that may be obtained when using variable recipes in contrast to fixed nominal recipes. A multiproduct and a multipurpose plant illustrate the proposed approach. In both cases, the potential benefits are confirmed resuting in clear advantages regarding overall economic benefit, when the variable recipes are introduced. Thus, the presented approach gives rise to new tradeoffs, since it allows new improvement opportunities associated with quality, safety, or changing operating policies, which are usually considered separately. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128628 [article] Improved short-term batch scheduling flexibility using variable recipes [texte imprimé] / Elisabet Capon-Garcia, Auteur ; Marta Moreno - Benito, Auteur ; Antonio Espuna, Auteur . - 2011 . - pp. 4983-4992. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 9 (Mai 2011) . - pp. 4983-4992 Mots-clés : Flexibility  Scheduling  Batchwise  Short  term Résumé : Batch scheduling and control decision levels are usually optimized separately, even though integrated decisions would potentially increase the overall performance of the plant. This work aims at including in the scheduling problem the operating conditions related to the control function, which are traditionally optimized and fixed beforehand, to shed light to the benefits that may be obtained when using variable recipes in contrast to fixed nominal recipes. A multiproduct and a multipurpose plant illustrate the proposed approach. In both cases, the potential benefits are confirmed resuting in clear advantages regarding overall economic benefit, when the variable recipes are introduced. Thus, the presented approach gives rise to new tradeoffs, since it allows new improvement opportunities associated with quality, safety, or changing operating policies, which are usually considered separately. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24128628