| 表面活性素集成生产过程(Ⅲ)吸附柱的模型 |
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| 引用本文： | Ludovic Montastruc,刘涛,Iordan Nikov,Pascal Floquet,Serge Domenech.表面活性素集成生产过程(Ⅲ)吸附柱的模型[J].中国化学工程学报,2011,19(3):357-364. |
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| 作者姓名： | Ludovic Montastruc 刘涛 Iordan Nikov Pascal Floquet Serge Domenech |
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| 作者单位： | 1. Laboratoire ProBioGEM EA 1026, Polytech’Lille, USTL, Lille, France;2. Laboratoire de Génie Chimique, Z.A Basso Cambo, 5 rue Paulin Talabot, 31106 Toulouse Cedex 1, France;3. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| 摘 要： | The study is focused on modeling of separation process and optimization.An adsorption separation process is simulated.The surfactin production process by Bacillus subtilis ATCC 21332 followed by surfactin adsorption in a fixed-bed column packed with commercial active carbon is studied in laboratory.The adsorption column achieves high surfactin recovery(94%)by up-flow methanol elution at 25°C.The adsorption column is simulated with a complex one-dimensional plug flow dispersion model coupled with nonlinear adsorption equilibrium,based on the assumption that the adsorption of surfactin is monomolecular layer and no micelle is formed.The molecular diffusion coefficient of surfactin in water solution with electric neutrality is estimated to be 0.428×10 -5 cm 2 ·s -1 by molecular dynamics simulation.The model developed can describe the complex interplay of adsorption kinetics,fluid dynamics,and mass-transfer phenomena based on the assumption of no radial temperature and concentration gradients,and is of adequate precision.The work involved in this paper is valuable for the optimization of the production process of surfactin.
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| 关 键 词： | surfactant adsorption mathematical modelling kinetics integrated process |
| 收稿时间： | 2010-11-23 |
| 修稿时间： | 2010-11-23
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Integrated process for production of surfactin (III) modeling of adsorption column |
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| L. Montastruc,LIU Tao,I. Nikov,P. Floquet,S. Domenech.Integrated process for production of surfactin (III) modeling of adsorption column[J].Chinese Journal of Chemical Engineering,2011,19(3):357-364. |
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| Authors: | L Montastruc LIU Tao I Nikov P Floquet S Domenech |
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| Affiliation: | 1. Laboratoire ProBioGEM EA 1026, Polytech’Lille, USTL, Lille, France;2. Laboratoire de Génie Chimique, Z.A Basso Cambo, 5 rue Paulin Talabot, 31106 Toulouse Cedex 1, France;3. State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | The study is focused on modeling of separation process and optimization. An adsorption separation process is simulated. The surfactin production process by Bacillus subtilis ATCC 21332 followed by surfactin adsorption in a fixed-bed column packed with commercial active carbon is studied in laboratory. The adsorption column achieves high surfactin recovery (94%) by up-flow methanol elution at 25 °C. The adsorption column is simulated with a complex one-dimensional plug flow dispersion model coupled with nonlinear adsorption equilibrium, based on the assumption that the adsorption of surfactin is monomolecular layer and no mi-celle is formed. The molecular diffusion coefficient of surfactin in water solution with electric neutrality is estimated to be 0.428×105 cm2•s1 by molecular dynamics simulation. The model developed can describe the complex interplay of adsorption kinet-ics, fluid dynamics, and mass-transfer phenomena based on the assumption of no radial temperature and concentration gradients, and is of adequate precision. The work involved in this paper is valuable for the optimization of the production process of surfactin. |
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| Keywords: | surfactant adsorption mathematical modelling kinetics integrated process |
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