Lagrangean Decomposition for Integrated Refinery-Petrochemical Short-term Planning

We present a methodology for the optimal integration of crude management (CM) and refinery-petrochemical (RP) planning operations. The physical coupling between both CM and RP optimization subproblems is via the flow rate, physical-chemical properties, and composition of the crude blends. For a given economic cost of the crude blends, which either provides a selling price for CM or a purchase price for RP, both subproblems can maximize their …