| 一个用于精馏塔模拟的新模型 |
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| 引用本文： | 李文彬,刘伯潭,余国琮,袁希钢.一个用于精馏塔模拟的新模型[J].中国化学工程学报,2011,19(5):717-725. |
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| 作者姓名： | 李文彬 刘伯潭 余国琮 袁希钢 |
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| 作者单位： | State Key Laboratory for Chemical Engineering (Tianjin University)and School of Chemical Engineering Technology, Tianjin University, Tianjin 300072, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (20736005) |
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| 摘 要： | A new computational mass transfer model is proposed for simulating the distillation process by solving the fluctuating mass flux for 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.
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| 关 键 词： | 传质模型 精馏塔 模拟 传质方程 浓度分布 蒸馏过程 质量通量 分离效率 |
| 收稿时间： | 2011-6-20 |
| 修稿时间： | 2011-6-20
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A new model for the simulation of distillation column |
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| LI Wenbin,LIU Botan,YU Guocong,YUAN Xigang.A new model for the simulation of distillation column[J].Chinese Journal of Chemical Engineering,2011,19(5):717-725. |
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| Authors: | LI Wenbin LIU Botan YU Guocong YUAN Xigang |
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| Affiliation: | State Key Laboratory for Chemical Engineering (Tianjin University)and School of Chemical Engineering Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | A new computational mass transfer model is proposed for simulating the distillation process by solving the fluctuating mass flux for 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. |
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| Keywords: | distillation simulation packed column tray column fluctuating mass flux |
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