A continuous-time formulation for refinery production scheduling problems involving operational transitions in mode switching

Lei Shi; Yongheng Jiang; Ling Wang; Dexian Huang

doi:10.1016/j.cjche.2016.04.041

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A continuous-time formulation for refinery production scheduling problems involving operational transitions in mode switching

Process Systems Engineering and Process Safety | Updated：2026-01-06

- A continuous-time formulation for refinery production scheduling problems involving operational transitions in mode switching
- Chinese Journal of Chemical Engineering Vol. 24, Issue 8, Pages: 1020-1031(2016)
- Affiliations：
  
  1. Institute of Process Control Engineering, Department of Automation, Tsinghua University,Beijing,China,100084
  2. Tsinghua National Laboratory for Information Science and Technology, Tsinghua University,Beijing,China,100084
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.04.041
  CLC：
- Published：2016
- Accepted：
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Lei Shi, Yongheng Jiang, Ling Wang, Dexian Huang. A continuous-time formulation for refinery production scheduling problems involving operational transitions in mode switching[J]. , 2016, 24(8): 1020-1031.
DOI：

Lei Shi, Yongheng Jiang, Ling Wang, Dexian Huang. A continuous-time formulation for refinery production scheduling problems involving operational transitions in mode switching[J]. , 2016, 24(8): 1020-1031. DOI： 10.1016/j.cjche.2016.04.041.

摘要

Abstract

In the refinery scheduling

operational transitions in mode switching are of great significance to formulate dynamic nature of production and obtain efficient schedules. The discrete-time formulation meets two main challenges in modeling:discrete approximation of time and large size of mixed-integer linear problem (MILP). In this article

a continuous-time refinery scheduling model

which involves transitions of mode switching

is presented due to these challenges. To reduce the difficulty in solving large scale MILPs resulting from the sequencing constraints

the global event-based formulation is chosen. Both transition constraints and production transitions are introduced and the numbers of key variables and constraints in both of the discrete-time and continuous-time formulations are analyzed and compared. Three cases with different lengths of time horizons and different numbers of orders are studied to show the efficiency of the proposed model.

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Related Author

Lei Shi

Yongheng Jiang

Ling Wang

Dexian Huang

Xiaoyong Gao

Dexian Huang

Yongheng Jiang

Tao Chen

Related Institution

2 Tsinghua National Laboratory for Information Science and Technology, Tsinghua University

2 Department of Automation, Tsinghua University

3 Department of Chemical and Process Engineering, University of Surrey, Guildford

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