# A priority-slot based continuous-time formulation for crude-oil scheduling problems with oil residency time constraint

A priority-slot based continuous-time formulation for crude-oil scheduling problems with oil residency time constraint

Yuming ZhaoNaiqi Wu

School of Electro-Mechanical Engineering, Guangdong University of Technology, Guangzhou 510006, Guangdong, China

School of Computer Science, Zhaoqing University, Zhaoqing 526061, Guangdong, China

Corresponding Author Email:
ymzhao@zqu.edu.cn
Page:
22-30
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DOI:
https://doi.org/10.18280/rces.040105
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Accepted:
|
Published:
31 March 2017
| Citation

OPEN ACCESS

Abstract:

The optimal scheduling of crude-oil operation in refineries has been studied by various groups during the past decade leading to different mixed integer linear programming or mixed nonlinear programming formulations. This paper presents a new formulation with oil residency time constraint based on single-operation sequencing (SOS). At the same time, the bilinear constraints in the formulation are replaced by its necessary conditions, which are linear. A simple MILP-NLP procedure has been used to solve this model and leads to a satisfactory optimal result.

Keywords:

Oil Refinery, Scheduling, Continuous-Time Formulation, Residency Time Constraint.

1. Introduction
2. Process and Its Short-Term Scheduling Problem
3. Problem Formulation
4. Solution Method
5. Numerical Example
6. Conclusion
Acknowledgements
References

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