Numerical simulations of bubble behavior and mass transfer in CO2 capture system with ionic liquids
文献类型：期刊论文
| 作者 | Bao, Di1,2; Zhang, Xin1,2; Dong, Haifeng1; Ouyang, Zailong1,2; Zhang, Xiangping1; Zhang, Suojiang1 |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2015-10-02 |
| 卷号 | 135期号:OCT页码:76-88 |
| 关键词 | Computational fluid dynamics (CFD) Bubble behavior Coalescence Mass transfer Ionic liquid |
| ISSN号 | 0009-2509 |
| 英文摘要 | Ionic liquids (ILs) have exhibited excellent performance on CO2 capture. However, the lack of research on transport properties has become a bottleneck of industrial application. In order to understand the bubble behavior and mass transfer performance in CO2 capture systems with ILs, a computational fluid dynamics (CFD) method with two improvements is developed in this paper. One improvement is that a drag force equation suitable for IL systems is introduced into the hydrodynamics model, and the other one is that the influence of CO2 concentration in liquid phase on viscosity of ILs is considered in the mass transfer model. Based on the developed CFD method, the bubble behavior and mass transfer properties are accurately described. The simulation results of bubble diameter, velocity and aspect ratio agree well with the experimental data with the overall deviation of 7.52%, 12.17% and 5.17%, respectively. The bubble coalescence phenomenon is illustrated by pressure gradient field analysis rather than conventional pressure field analysis, which can represent the drag force and lift force directly. The simulation results also show that the CO2 mass transfer is kinetic-controlled in pure ILs and thermodynamic-controlled in aqueous ILs, respectively. (C) 2015 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | TRANSFER COEFFICIENT ; MULTIPHASE FLOWS ; CARBON-DIOXIDE ; SINGLE BUBBLE ; LOW-VISCOSITY ; FLUID ; DYNAMICS ; COLUMNS ; VOLUME ; RISE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000363036100009 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/19663]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 2.Univ Chinise Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bao, Di,Zhang, Xin,Dong, Haifeng,et al. Numerical simulations of bubble behavior and mass transfer in CO2 capture system with ionic liquids[J]. CHEMICAL ENGINEERING SCIENCE,2015,135(OCT):76-88. |
| APA | Bao, Di,Zhang, Xin,Dong, Haifeng,Ouyang, Zailong,Zhang, Xiangping,&Zhang, Suojiang.(2015).Numerical simulations of bubble behavior and mass transfer in CO2 capture system with ionic liquids.CHEMICAL ENGINEERING SCIENCE,135(OCT),76-88. |
| MLA | Bao, Di,et al."Numerical simulations of bubble behavior and mass transfer in CO2 capture system with ionic liquids".CHEMICAL ENGINEERING SCIENCE 135.OCT(2015):76-88. |
入库方式： OAI收割
来源：过程工程研究所
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