MASS TRANSFER KINETICS OF PERVAPORATION BY USING COMPOSITE SILICONE RUBBER MEMBRANE (Ⅰ) CONVECTIVE TRANSPORT ON MEMBRANE SURFACE

LI Lei; XIAO Zeyi; ZHANG Zhibing; TAN Shujuan

您当前的位置：

首页 >

文章列表页 >

MASS TRANSFER KINETICS OF PERVAPORATION BY USING COMPOSITE SILICONE RUBBER MEMBRANE (Ⅰ) CONVECTIVE TRANSPORT ON MEMBRANE SURFACE

更新时间：2025-12-10

- MASS TRANSFER KINETICS OF PERVAPORATION BY USING COMPOSITE SILICONE RUBBER MEMBRANE (Ⅰ) CONVECTIVE TRANSPORT ON MEMBRANE SURFACE
- CIESC Journal Issue 11, (2002)
- 作者机构：
  
  南京大学化学化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 November 2002，
  
  Published：25 November 2002
- 稿件说明：
移动端阅览
LI Lei, XIAO Zeyi, ZHANG Zhibing, et al. MASS TRANSFER KINETICS OF PERVAPORATION BY USING COMPOSITE SILICONE RUBBER MEMBRANE (Ⅰ) CONVECTIVE TRANSPORT ON MEMBRANE SURFACE[J]. CIESC Journal, 2002, (11).
DOI：

LI Lei, XIAO Zeyi, ZHANG Zhibing, et al. MASS TRANSFER KINETICS OF PERVAPORATION BY USING COMPOSITE SILICONE RUBBER MEMBRANE (Ⅰ) CONVECTIVE TRANSPORT ON MEMBRANE SURFACE[J]. CIESC Journal, 2002, (11). DOI：

摘要

利用自制的硅橡胶平板复合膜对低浓度乙醇水溶液进行渗透蒸发分离乙醇实验

研究了过程的传质动力学。基于液 -膜的串联传质阻力模型

通过实验测定了膜的总传质系数

采用对比差值方法将总传质系数拆分为膜面上的液膜传质系数和膜内的扩散传质系数两部分

分析了液相边界层阻力和膜扩散阻力对总传质系数的影响。特别针对膜面上液体流动状况对膜传质的影响进行了探讨

得出了液膜传质系数与Reynolds数及温度的关联式。

Abstract

The pervaporation of ethanol from dilute aqueous solution through a novel plate composite silicone rubber membrane was investigated.Based upon the well-known resistance-in-series model

the overall mass transfer coefficient across membrane was measured and split into two parts of liquid film mass transfer coefficient and diffusive mass transfer coefficient in membrane

by conducting an ingenious calculation from the experimental data with different skin layer thickness of membranes. This allowed the relative contributions of the liquid film boundary layer resistance and the membrane resistance to be elucidated. Especially

the effects of liquid flow status on the surface of membrane on mass transfer of membrane was revealed

from which the correlations between liquid film mass transfer coefficient and Reynolds number as well as feed temperature could be obtained.

关键词

Keywords

references

Views

648

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Advantages and risks of swirling cooling granulation towers

The impact of novel flow channel structure with sudden-expansion ratio on seawater-activated battery

Analysis of flow field characteristics and mixing performance of different SK-type static mixers

Study on flash evaporation characteristics as well as thermodynamic variation performance in liquid hydrogen tank during on-orbit venting

Study on impact of impurities in coal chemical waste salt on solvation of NaCl and Na2SO4

Related Author

No data

Related Institution

No data

⁰