Object-oriented refinery plant-wide scheduling optimization model and program framework

doi:10.11949/0438-1157.20211737

Abstract

Abstract:

Under the overall idea of the refinery scheduling model considering optimal operating mode switching of units, a refinery plant-wide scheduling optimization discrete-time model structure is constructed with a matching program framework. The object-oriented modeling method is adopted, and expressions such as modal indication matrix are introduced, which provides a clear reference idea for the generalized oil refinery production scheduling modeling. Through the data interaction between GAMS and MATLAB, the complementary advantages of the two are realized, which provides convenience and lays a foundation for further research on the refinery production scheduling model. The case study verifies the effectiveness of the proposed model structure and program framework.

Key words: global optimization, model reduction, integration, refinery, scheduling, discrete-time

摘要：

基于考虑炼油装置优化操作模式切换过程的总体思想，构建了一套炼油厂全厂调度优化离散时间模型结构，并形成配套的程序框架。采用面向对象的建模方式，引入模态指示矩阵等表达，为炼油厂生产调度建模提供了较为清晰的参考思路。通过GAMS和MATLAB的数据交互，实现二者优势互补，为进一步研究炼油生产调度模型提供便利、奠定基础。案例研究验证了所提模型结构及程序框架的有效性。

关键词: 整体优化, 模型简化, 集成, 炼油厂, 调度, 离散时间

CLC Number:

TB 114.1

Biao HAN, Chao SHANG, Yongheng JIANG, Dexian HUANG. Object-oriented refinery plant-wide scheduling optimization model and program framework[J]. CIESC Journal, 2022, 73(4): 1623-1630.

韩彪, 尚超, 江永亨, 黄德先. 面向对象的炼油厂全厂调度优化模型及程序框架[J]. 化工学报, 2022, 73(4): 1623-1630.

Figures/Tables 4

Fig.1 A production process diagram of a typical refinery

Fig.2 An illustration of the mode switching process of unit FCCU

Table 1 Order demand information of the case

订单	交货时刻	柴油/吨			汽油/吨
订单	交货时刻	GⅢ0^#	GⅢ10^#	GⅣ0^#	GⅢ90^#	GⅢ93^#	GⅢ97^#	JⅣ93^#	JⅣ97^#
l₁	16 h末	600	660	368	0	0	0	50	0
l₂	32 h末	200	300	350	200	450	400	170	130
l₃	60 h末	0	0	0	0	354	611	786	400

Fig.3 Gantt chart of the scheduling optimization result (unit: t/h)

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