Stochastic optimization based on a novel scenario generation method for midstream and downstream petrochemical supply chain  

作　　者：Peixian Zang Guoming Sun Yongming Zhao Yiqing Luo Xigang Yuan 

机构地区：[1]State Key Laboratory of Chemical Engineering,Collaborative Innovation of Chemical Science and Engineering(Tianjin),School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Journal of Chemical Engineering》2020年第3期815-823,共9页中国化学工程学报（英文版）

基　　金：the support from the National Natural Science Foundation of China(No.21676183);State Key Laboratory of Chemical Engineering,Collaborative Innovation of Chemical Science and Engineering(Tianjin)。

摘　　要：A two-stage mixed integer linear programming model(MILP)incorporating a novel method of stochastic scenario generation was proposed in order to optimize the economic performance of the synergistic combination of midstream and downstream petrochemical supply chain.The uncertainty nature of the problem intrigued the parameter estimation,which was conducted through discretizing the assumed probability distribution of the stochastic parameters.The modeling framework was adapted into a real-world scale of petrochemical enterprise and fed into optimization computations.Comparisons between the deterministic model and stochastic model were discussed,and the influences of the cost components on the overall profit were analyzed.The computational results demonstrated the rationality of using reasonable numbers of scenarios to approximate the stochastic optimization problem.

关 键 词：PETROLEUM TWO-STAGE Optimization Scenario generation Parameter estimation 

分 类 号：F426.72[经济管理—产业经济] F274