A formulation methodology for multicomponent distillation sequences based on stochastic optimization

›› 2016, Vol. 24 ›› Issue (9): 1229-1235.

• Process Systems Engineering and Process Safety • 上一篇下一篇

A formulation methodology for multicomponent distillation sequences based on stochastic optimization

FeiWang¹, Yiqing Luo¹, Xigang Yuan²

1 Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2 State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China

收稿日期:2015-06-25 修回日期:2015-11-25 出版日期:2016-09-28 发布日期:2016-11-11
通讯作者: Yiqing Luo,E-mail address:luoyq@tju.edu.cn
基金资助:
Supported by the 973 Program of China (2012CB720503) and the Open Research Project of State Kay Laboratory of Chemical Engineering (SKL-ChE-13B02).

A formulation methodology for multicomponent distillation sequences based on stochastic optimization

FeiWang¹, Yiqing Luo¹, Xigang Yuan²

1 Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2 State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China

Received:2015-06-25 Revised:2015-11-25 Online:2016-09-28 Published:2016-11-11
Supported by:
Supported by the 973 Program of China (2012CB720503) and the Open Research Project of State Kay Laboratory of Chemical Engineering (SKL-ChE-13B02).

摘要/Abstract

摘要： Based on stochastic optimization strategy, a formulation methodology is proposed for synthesizing distillation column sequences, allowing more than one middle component as the distributing components between a pair of key components in the non-sharp split. In order to represent and manipulate the distillation configuration structures, a new coding procedure is proposed in the form of one-dimensional array. Theoretically, an array can represent any kind of split (non-sharp and sharp).With the application of a binary sort tree approach, a robust flow sheet encoding and decoding procedure is developed so that the problem formulation and solution becomes tractable. In this paper, the synthesis problem is formulated as a mixed-integer nonlinear programming (MINLP) problem and an improved simulated annealing approach is adopted to solve the optimization problem. Besides, a shortcut method is applied to the evaluation of all required design parameters as well as the total function.

关键词: Distillation sequences synthesis, Non-sharp separation, Simulated annealing, MINLP, Binary sort tree

Abstract: Based on stochastic optimization strategy, a formulation methodology is proposed for synthesizing distillation column sequences, allowing more than one middle component as the distributing components between a pair of key components in the non-sharp split. In order to represent and manipulate the distillation configuration structures, a new coding procedure is proposed in the form of one-dimensional array. Theoretically, an array can represent any kind of split (non-sharp and sharp).With the application of a binary sort tree approach, a robust flow sheet encoding and decoding procedure is developed so that the problem formulation and solution becomes tractable. In this paper, the synthesis problem is formulated as a mixed-integer nonlinear programming (MINLP) problem and an improved simulated annealing approach is adopted to solve the optimization problem. Besides, a shortcut method is applied to the evaluation of all required design parameters as well as the total function.

Key words: Distillation sequences synthesis, Non-sharp separation, Simulated annealing, MINLP, Binary sort tree

中图分类号:

10.1016/j.cjche.2016.04.046

FeiWang, Yiqing Luo, Xigang Yuan. A formulation methodology for multicomponent distillation sequences based on stochastic optimization[J]. , 2016, 24(9): 1229-1235.

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A formulation methodology for multicomponent distillation sequences based on stochastic optimization

A formulation methodology for multicomponent distillation sequences based on stochastic optimization

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