Flexible scheduling model of crude oil operations under crude supply disturbance |
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Authors: | Ming Pan Yu Qian and XiuXi Li |
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Institution: | (1) School of Chemical and Energy Engineering, South China University of Technology, Guangzhou, 510640, China |
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Abstract: | Today’s changeable market and resultant disturbance of crude oil supply require agile and flexible scheduling of crude oil
operation. The objective of flexible scheduling is to keep stable crude oil operation and satisfy production demands under
the circumstances of supply disturbance. In this paper, a new mixed integer non-linear programming (MINLP) formulation is
set up for crude oil scheduling firstly, and then some heuristic rules worked out by some experts are proposed to linearize
bilinear terms and prefix some binary variables in the MINLP model. These rules not only reduce the complexity of the MINLP
model, but also can be used to solve the scheduling problems in various conditions. In case study, the new model with heuristic
rules and the best models reported in the literature are compared and evaluated in three benchmark examples in the normal
situation, and then three abnormal situations of supply delay are considered based on the new approach. The results of case
study show that the new flexible approach can handle crude oil scheduling problems efficiently in both normal and abnormal
conditions.
Supported partially by the National Natural Science Foundation of China (Grant Nos. 20536020 and 20876056), and the Guangdong
Province Science and Technology Foundation (Grant No. 2004B5010-1002) |
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Keywords: | safety of crude supply crude oil operation flexible scheduling mathematical model safety stock |
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