Optimal multiperiod design and operation of multiproduct batch plants

MORENO, MARTA; MONTAGNA, JORGE; IRIBARREN, OSCAR

Gramado, Brasil

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

International Federation of Automatic Control (IFAC)

New alternatives for the multiperiod design 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 material inventory costs. The model takes into account batch units available in discrete sizes, and both raw material and product inventories accounting for seasonal variations for supplies and demands. Nonlinearities have been eliminated by an efficient scheme in order to get a MILP model to guarantee global optimality.