STUDY ON OPTIMIZATION OF OPERATION FOR MULTIPURPOSE BATCH CHEMICAL-PLANTS WITH MULTIPLE PRODUCTION ROUTES

According to the operation characteristics of such plants, on the basi s of Mauderli-Wellons's research, the mathematical models of operation optimization are modified which consider the campaign formation and p roduction plan problem respectively. A new heuristics is advanced to s earch for the dominant production campaigns. Comparing the heuristics with Mauderli's algorithm, it ensures that parallel items in-phase hav e the same batch and that each production line operates with optimized batch, therefore the plant has a larger processing rate. This heurist ics can effectively relieve the bottlenecks, and avoid the complexity resulting from the nonconvexity of the model. Within the resource aloc ated, the mixed-integer algorithm is used to maximize the profit.