The synergetic production among upstream and downstream enterprises is a critical step toward supply chain optimization across petrochemical industry. However

because of complexity and independent design of petrochemical process

such a synergetic operation between facilities is available only in a few conglomerate corporations with coordinated manufacturing systems. An optimized model for integrated logistic planning in independently operating petrochemical companies was proposed on a basis of current supply chain model of independent refinery and olefin plants. In this mixed-integer linear programming (MILP) model

maximum operation profit was targeted as optimization condition and analyzed in three scenarios corresponding to normal

depressed and active marketing demands. Results of case study showed that

compared to independent operations

the integrated optimization and united operation among petrochemical companies could reduce material storage and overall cost

improve resource allocation

and increase operation profit.