Optimal Multiperiod Design and Operation of Multiproduct Batch Plants

MARTA S. MORENO; JORGE M. MONTAGNA; OSCAR A. IRIBARREN

Gramado

Congreso; International Symposium on Advanced Control of Chemical Processes; 2006

New alternatives for the multiperiod designa and operation planning of multiproduct batch plants are presented. Unlike previous works, this approach configurates the plant in every period considering the assignment of parallel units of different sizes operating either in or out of phase. The objective function maximizes the net profit considering incomes, investment costs and both product and raw materials inventory costs. The model takes into account batch units available in discrete sizes, and both raw materials and product inventories account for seasonal variations of supplies and demands. Nonlinearities have been eliminated by an efficient scheme in order to get a MILP model to guarantee global optimality.