Mesoscale modeling of emulsification in rotor-stator devices Part II: A model framework integrating emulsifier adsorption
文献类型：期刊论文
| 作者 | Chen, Chao1,2; Guan, Xiaoping1; Ren, Ying1; Yang, Ning1; Li, Jinghai1; Kunkelman, Christian3; Schreiner, Eduard3; Holtze, Christian3; Mulheims, Kerstin3; Sachweh, Bernd4 |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2019-01-16 |
| 卷号 | 193页码:156-170 |
| 关键词 | Rotor-stator mixers Droplet size distribution Surfactant mass transfer Meso-scale modeling |
| ISSN号 | 0009-2509 |
| DOI | 10.1016/j.ces.2018.08.049 |
| 英文摘要 | Precise and rational control of droplet size distribution (DSD) is important in emulsification for target-oriented product design. To develop a complete DSD model, crossing the two mesoscales of two different levels is of great significance, viz., the emulsifier adsorption at interfacial level (Mesoscale 1) and the droplet breakage and coalescence in turbulence in rotor-stator device level (Mesoscale 2). While the first mesoscale can be simulated by coarse-grained molecular dynamic (CGMD), the second has been investigated in computational fluid dynamics and population balance model (CFD-PBM) simulation through the Energy-Minimization Multi-Scale (EMMS) approach in Part I. We then developed a model framework in Part II, coupling CGMD and CFD-PBM simulation through surfactant transport equations in bulk phase and at interface, with source terms taking account of emulsifier adsorption parameters. The parameters including maximal adsorption amount, diffusion coefficient and adsorption/desorption kinetic constants are acquired from CGMD. The coalescence efficiency is then corrected by the interfacial area fraction not occupied by surfactant and fed into the coalescence kernel functions in PBM. Compared to traditional CFD-PBM simulation, the coupled model can greatly improve the simulation of DSD, Sauter mean diameter, median diameter and span for high dispersed phase amount (DPA), and correctly reflect the influence of DPA, surfactant concentration and rotational speed of rotor-stator (RS) devices. While the simulation cases validate and demonstrate the advantage of this new model framework, it is also promising to incorporate different types of surfactant in future. (C) 2018 Elsevier Ltd. All rights reserved. |
| WOS关键词 | DROP-SIZE DISTRIBUTIONS ; BUBBLE-COLUMNS ; SURFACTANT ADSORPTION ; TURBULENT DISPERSIONS ; STABILITY CONDITION ; CFD SIMULATION ; SOLID FLOW ; LIQUID ; PRESSURE ; COALESCENCE |
| 资助项目 | BASF ; National Key R&D Program of China[2017YE0106500] ; National Nature Science Foundation of China[91634203] ; Beijing National Science Foundation[2184125] ; Research Center for Mesoscience at Institute of Process Engineering, Chinese Academy of Sciences[COM2016A004] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000447171800014 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | BASF ; National Key R&D Program of China ; National Nature Science Foundation of China ; Beijing National Science Foundation ; Research Center for Mesoscience at Institute of Process Engineering, Chinese Academy of Sciences |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/26347]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Yang, Ning |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.BASF SE, D-67056 Ludwigshafen, Germany 4.BASF Adv Chem Co Ltd, Shanghai 200137, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Chao,Guan, Xiaoping,Ren, Ying,et al. Mesoscale modeling of emulsification in rotor-stator devices Part II: A model framework integrating emulsifier adsorption[J]. CHEMICAL ENGINEERING SCIENCE,2019,193:156-170. |
| APA | Chen, Chao.,Guan, Xiaoping.,Ren, Ying.,Yang, Ning.,Li, Jinghai.,...&Sachweh, Bernd.(2019).Mesoscale modeling of emulsification in rotor-stator devices Part II: A model framework integrating emulsifier adsorption.CHEMICAL ENGINEERING SCIENCE,193,156-170. |
| MLA | Chen, Chao,et al."Mesoscale modeling of emulsification in rotor-stator devices Part II: A model framework integrating emulsifier adsorption".CHEMICAL ENGINEERING SCIENCE 193(2019):156-170. |
入库方式： OAI收割
来源：过程工程研究所
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