A New Model for the Simulation of Distillation Column

›› 2011, Vol. 19 ›› Issue (5): 717-725.

• SELECTED PAPERS FROM THE 4TH NATIONAL CONFERENCE ON MASS TRANSFER AND SEPARATION ENGINEERING AND IN HONOUR OF PROF. K. T. YU (YU GUOCONG) • Previous Articles Next Articles

A New Model for the Simulation of Distillation Column

LI Wenbin, LIU Botan, YU Guocong, YUAN Xigang

State Key Laboratory for Chemical Engineering (Tianjin University)and School of Chemical Engineering Technology, Tianjin University, Tianjin 300072, China

Received:2011-06-20 Revised:2011-09-05 Online:2011-10-28 Published:2011-10-28
Supported by:
Supported by the National Natural Science Foundation of China (20736005)

A New Model for the Simulation of Distillation Column

李文彬, 刘伯潭, (K. T. YU)余国琮, 袁希钢

State Key Laboratory for Chemical Engineering (Tianjin University)and School of Chemical Engineering Technology, Tianjin University, Tianjin 300072, China

通讯作者: YU Guocong,E-mail:ktyu@tju.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (20736005)

Abstract

Abstract: A new computational mass transfer model is proposed for simulating the distillation process by solving the fluctuating mass flux for ?_i'c' the closure of turbulent mass transfer equation in order to obtain the concentration profile and the separation efficiency of distillation column. The feather of the proposed model is to abandon the conventional way of introducing the turbulent mass transfer diffusivity (dispersion coefficient) to the turbulent mass transfer equation. To verify the validity of the proposed model, a commercial scale packed column and a sieve tray column were simulated and compared with published experimental data. The simulated results were satisfactorily confirmed in both concentration distribution and separation efficiency.

Key words: distillation simulation, packed column, tray column, fluctuating mass flux

摘要： A new computational mass transfer model is proposed for simulating the distillation process by solving the fluctuating mass flux for ?_i'c' the closure of turbulent mass transfer equation in order to obtain the concentration profile and the separation efficiency of distillation column. The feather of the proposed model is to abandon the conventional way of introducing the turbulent mass transfer diffusivity (dispersion coefficient) to the turbulent mass transfer equation. To verify the validity of the proposed model, a commercial scale packed column and a sieve tray column were simulated and compared with published experimental data. The simulated results were satisfactorily confirmed in both concentration distribution and separation efficiency.

关键词: distillation simulation, packed column, tray column, fluctuating mass flux

LI Wenbin, LIU Botan, YU Guocong, YUAN Xigang. A New Model for the Simulation of Distillation Column[J]. , 2011, 19(5): 717-725.

李文彬, 刘伯潭, (K. T. YU)余国琮, 袁希钢. A New Model for the Simulation of Distillation Column[J]. , 2011, 19(5): 717-725.

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A New Model for the Simulation of Distillation Column

A New Model for the Simulation of Distillation Column

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