Schedulability Analysis for Short-Term Scheduling of Crude Oil Operations by Using a Petri Net Model

Abstract

Abstract: Because of the complexity of short-term scheduling problem for crude oil operations in a refinery, the existing mathematical programming-based approaches often ignore some constraints in modeling the system, leading to an infeasible solution. To avoid this, the shortterm scheduling problem is studied in a control theory perspective in this paper. With this idea, a hybrid Petri net model is developed for it. Based on the model, schedulability for systems with multiple distillers is analyzed and the schedulability conditions are presented, which reveals the relationship of the number of charging tanks and their capacity, the amount of crude oil of different types in the charging tanks at the initial state, and the oil transportation rate of the pipeline. The results are verified by a practical industrial case.

Key words: oil refining, shortterm scheduling, Petri net

Ding Cheng-jie, Wu Nai-qi, Bai Li-ping. Schedulability Analysis for Short-Term Scheduling of Crude Oil Operations by Using a Petri Net Model[J]. Industrial Engineering Journal , 2012, 15(6): 8-14.

References

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