The resistance of interphase mass transfer in colloidal liquid aphron systems
文献类型：期刊论文
| 作者 | He, Yi; Wu, Zhichun; Mao, Zai-Sha |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 62期号:10页码:2803-2812 |
| 关键词 | colloidal liquid aphrons (CLAs) mass transfer surfactant interface diffusion adsorption resistance |
| ISSN号 | 0009-2509 |
| 其他题名 | Chem. Eng. Sci. |
| 中文摘要 | Colloidal liquid aphrons (CLAs) provide very large interfacial area and thus could enhance interphase mass transfer in multiphase processes. This work characterized the mass transfer behavior of CLAs during mass transfer of benzoic acid from cyclohexane in CLAs to water in a small stirred vessel. From experimental data the overall mass transfer coefficient K-L of the surfactant-stabilized CLAs was determined. The influence of stirring speed and concentration of surfactant used for formulating CLAs on K-L was investigated. The experimental results show hat surfactant adsorbed on the interface of CLAs influences greatly the value of K-L, and when the surfactant concentration is below its CMC, the overall CLAs mass transfer coefficient K-L (mainly varying with the interfacial mass transfer resistance) could be fitted to the following expression: K-L = H-1 + H-2 ln[C + H-3]. When the surfactant concentration is above its CMC, it is found that the influence of surfactant on diffusion resistance was dependent on its type. For the non-ionic surfactant, the increase of surfactant concentration has little influence on diffusion resistance. However, for the ionic surfactant, the overall CLAs mass transfer coefficient K-L (mainly varying with the diffusion resistance) decreases approximately in a linear way as the concentration of ionic surfactant is increased. These correlations represent the experimental data satisfactorily. (c) 2007 Elsevier Ltd. All rights reserved. |
| 英文摘要 | Colloidal liquid aphrons (CLAs) provide very large interfacial area and thus could enhance interphase mass transfer in multiphase processes. This work characterized the mass transfer behavior of CLAs during mass transfer of benzoic acid from cyclohexane in CLAs to water in a small stirred vessel. From experimental data the overall mass transfer coefficient K-L of the surfactant-stabilized CLAs was determined. The influence of stirring speed and concentration of surfactant used for formulating CLAs on K-L was investigated. The experimental results show hat surfactant adsorbed on the interface of CLAs influences greatly the value of K-L, and when the surfactant concentration is below its CMC, the overall CLAs mass transfer coefficient K-L (mainly varying with the interfacial mass transfer resistance) could be fitted to the following expression: |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | PREDISPERSED SOLVENT-EXTRACTION ; TRANSFER COEFFICIENTS ; MICELLAR-SOLUTION ; STABILITY ; SURFACTANTS ; DIFFUSION ; CLAS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000246877100015 |
| 公开日期 | 2013-10-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3328]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Yi,Wu, Zhichun,Mao, Zai-Sha. The resistance of interphase mass transfer in colloidal liquid aphron systems[J]. CHEMICAL ENGINEERING SCIENCE,2007,62(10):2803-2812. |
| APA | He, Yi,Wu, Zhichun,&Mao, Zai-Sha.(2007).The resistance of interphase mass transfer in colloidal liquid aphron systems.CHEMICAL ENGINEERING SCIENCE,62(10),2803-2812. |
| MLA | He, Yi,et al."The resistance of interphase mass transfer in colloidal liquid aphron systems".CHEMICAL ENGINEERING SCIENCE 62.10(2007):2803-2812. |
入库方式： OAI收割
来源：过程工程研究所
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