A general framework for simultaneous cyclic scheduling and operational optimization of multiproduct continuous plants

Autor(es)

A. Alle ^[1] ; J.M. Pinto ^[2]

Afiliação do(s) autor(es)

^[1] University of Sao Paulo. Department of Chemical Engineering - Brasil

^[2] University of Sao Paulo. Department of Chemical Engineering - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Chemical Engineering; v. 19, n. 4, p. 457-466, 2002-12-00.

Resumo

This paper addresses the problem of integrating in a single model operational optimization and cyclic scheduling of continuous plants. Considered are multiproduct, multistage plants with finite intermediate storage capacity (FIS). A combined optimization approach introduces synergic effects for more effective scheduling and plant operation (Alle and Pinto, 2001a,b). The representation proposed for this problem results in an MINLP model with a nonconvex feasible region and nonconvex objective function. In order to deal with nonconvexity, a spatial branch-and-bound global optimization algorithm is applied. Results show that the global approach is effectively able to yield more profitable solutions than those obtained by local optimization methods. (AU)

• Processo FAPESP: 98/14384-3 - Integração de processos químicos contínuos em tempo real
• Beneficiário: Rubens Maciel Filho
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 99/02657-8 - Tecnicas de programacao matematica e metaheuristicas para o scheduling de plantas quimicas continuas.
• Beneficiário: Alessandro Alle
• Modalidade de apoio: Bolsas no Brasil - Doutorado