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

Brazilian Journal of Chemical Engineering

关键词: scheduling;    optimization of process conditions;    continuous plants;    mathematical programming;    global optimization;   

DOI  :  10.1590/S0104-66322002000400015

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown