SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2008, Vol. 16 ›› Issue (1): 30-35.

• SELECTED PAPERS FROM THE 4th INTERNATIONAL SYMPOSIUM ON DESIGN, OPERATION AND CONTROL OF CHEMICAL PROCESSES • Previous Articles     Next Articles

Simulated Annealing Approach to the Optimal Synthesis of Distillation Column with Intermediate Heat Exchangers

AN Weizhong, YU Fengjuan, DONG Fenglei, HU Yangdong   

  1. Department of Chemical Engineering, Ocean University of China, Qingdao 266100, China
  • Received:2007-05-10 Revised:2007-10-27 Online:2008-02-28 Published:2008-02-28

Simulated Annealing Approach to the Optimal Synthesis of Distillation Column with Intermediate Heat Exchangers

安维中, 于凤娟, 董凤蕾, 胡仰栋   

  1. Department of Chemical Engineering, Ocean University of China, Qingdao 266100, China
  • 通讯作者: AN Weizhong, E-mail: awzhong@ouc.edu.cn

Abstract: This article presents a simulated annealing-based approach to the optimal synthesis of distillation column considering intermediate heat exchangers arrangements. The number of intermediate condensers and/or inter-mediate reboilers, the placement locations, the operating pressure of column, and the heat duties of intermediate heat exchangers are treated as optimization variables. A novel coding procedure making use of an integer number series is proposed to represent and manipulate the structure of system and a stage-to-stage method is used for column design and cost calculation. With the representation procedure, the synthesis problem is formulated as a mixed integer nonlinear programming (MINLP) problem, which can then be solved with an improved simulated annealing algorithm. Two examples are illustrated to show the effectiveness of the suggested approach.

Key words: distillation, intermediate heat exchanger, synthesis, mixed integer nonlinear programming, simulated annealing

摘要: This article presents a simulated annealing-based approach to the optimal synthesis of distillation column considering intermediate heat exchangers arrangements. The number of intermediate condensers and/or inter-mediate reboilers, the placement locations, the operating pressure of column, and the heat duties of intermediate heat exchangers are treated as optimization variables. A novel coding procedure making use of an integer number series is proposed to represent and manipulate the structure of system and a stage-to-stage method is used for column design and cost calculation. With the representation procedure, the synthesis problem is formulated as a mixed integer nonlinear programming (MINLP) problem, which can then be solved with an improved simulated annealing algorithm. Two examples are illustrated to show the effectiveness of the suggested approach.

关键词: distillation, intermediate heat exchanger, synthesis, mixed integer nonlinear programming, simulated annealing