Novel drag coefficient models of ionic liquid - spherical particle system | |
Tang, Qi1,2; Qin, Xueying1,4; Dong, Haifeng1; Zhang, Xiangping1,3,5; Wang, Xiaodong3; Wang, Kuisheng2 | |
刊名 | CHEMICAL ENGINEERING SCIENCE |
2019-08-31 | |
卷号 | 204页码:177-185 |
关键词 | Drag Coefficient (C-d) Ionic Liquids (Ils) Particle Correlation Interfacial Tension |
ISSN号 | 0009-2509 |
DOI | 10.1016/j.ces.2019.04.017 |
英文摘要 | Ionic liquids (ILs) have been proved to be excellently potential catalysts and solvents in a few chemical processes. In order to provide fundamental data for the reactor design and process optimization, it is essential to investigate the hydrodynamics and the mass transfer phenomena of liquid-solid twophase systems containing ILs. In this work, we focus on the investigation of the hydrodynamic properties of a spherical particle in ILs, and a series of experiments are implemented in a cylindrical bubble column with three different diameters of spherical particles made of borosilicate glass (2 mm, 3 mm and 4 mm) in three kinds of ILs ([Bmim][BE4], [Bmim][PF6] and [Bmim][Tf2N]). Moreover, Two key physical quantities (terminal velocity of particle and contact angle) are measured with a high-speed camera system and an automatic contact angle meter. Based on dimensional analysis, two novel empirical models of the drag coefficient (C-D) between a spherical particle and ILs are developed in the range of particle's Reynolds number (Re) from 0.1 to 85. The first model is simple and the calculated C-D agrees fairly well with the experimental data. Furthermore, in order to evaluate the effects of surface properties on C-D, a newly defined dimensionless number (Mo') is introduced into IL-particle flow studies for the first time, which comes into being a more rigorous model. The average predicted deviations of the two models are +/- 1.1% and +/- 1.5% respectively, which is much lower than that of contrastive models in the same situations (about 13.3% or more). These two models are significant for studying the hydrodynamics and mass transfer characteristics of IL-particle systems as well as the fluid dynamics simulation in related reactors. (C) 2019 Published by Elsevier Ltd. |
资助项目 | National Key Projects for Fundamental Research and Development of China[2018YFB0605802] ; National Natural Science Foundation of China[21838010] ; National Natural Science Foundation of China[21676271] ; National Natural Science Foundation of China[21776277] ; Instrument Developing Project of the Chinese Academy of Sciences[YZ201567] ; DNL Cooperation Fund, CAS[DNL180406] ; Beijing hundreds of leading talents training project of science and technology[Z171100001117154] |
WOS关键词 | Numerical-simulation ; Reynolds-number ; Bubble Behavior ; Capture Systems ; Carbon Capture ; Single-bubble ; Mass-transfer ; Gas-bubbles ; Flow ; Co2 |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000467045600016 |
资助机构 | National Key Projects for Fundamental Research and Development of China ; National Natural Science Foundation of China ; Instrument Developing Project of the Chinese Academy of Sciences ; DNL Cooperation Fund, CAS ; Beijing hundreds of leading talents training project of science and technology |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/28122] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Zhang, Xiangping; Wang, Kuisheng |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Beijing Univ Chem Technol, Coll Mech Elect & Elect Engn, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100190, Peoples R China 4.China Univ Petr, Coll Chem Engn, Beijing 102249, Peoples R China 5.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China |
推荐引用方式 GB/T 7714 | Tang, Qi,Qin, Xueying,Dong, Haifeng,et al. Novel drag coefficient models of ionic liquid - spherical particle system[J]. CHEMICAL ENGINEERING SCIENCE,2019,204:177-185. |
APA | Tang, Qi,Qin, Xueying,Dong, Haifeng,Zhang, Xiangping,Wang, Xiaodong,&Wang, Kuisheng.(2019).Novel drag coefficient models of ionic liquid - spherical particle system.CHEMICAL ENGINEERING SCIENCE,204,177-185. |
MLA | Tang, Qi,et al."Novel drag coefficient models of ionic liquid - spherical particle system".CHEMICAL ENGINEERING SCIENCE 204(2019):177-185. |
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