An Unsteady Heterogeneous Mass Transfer Model for Gas Absorption Enhanced by Dispersed Third Phase Droplets

A model for one-dimensional unsteady heterogeneous mass transfer was developed based on Danck- werts＇ surface renewal theory in order to describe the mass transfer enhancement of absorption process for a slightly soluble gas in a gas-liquid-liquid system. The model accounts for the mass transfer res...

Full description

Saved in:
Bibliographic Details
Published inChinese journal of chemical engineering Vol. 17; no. 4; pp. 602 - 607
Main Author 沈树华 马友光 卢素敏 朱春英
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2009
Subjects
absorption
Carbon dioxide
Chemical engineering
Dispersion
Droplets
enhancement factor
gas-liquid-liquid
Mass transfer
Mathematical models
Natural gas
Unsteady
中水系统
传质模型
吸收过程
增强因子
强化传质
拉普拉斯
表面重建
阻力模型
gas-liquid-liquid
absorption
mass transfer
enhancement factor
Online AccessGet full text

Cover

More Information
Summary:A model for one-dimensional unsteady heterogeneous mass transfer was developed based on Danck- werts＇ surface renewal theory in order to describe the mass transfer enhancement of absorption process for a slightly soluble gas in a gas-liquid-liquid system. The model accounts for the mass transfer resistance within the dispersed phase and the effect of emulsion viscosity on mass transfer. An analytical solution for enhancement factor was obtained by Laplace domain transformation. The absorption rates of carbon dioxide in the dodecane-in-water and castor oil-in-water systems were measured in a thermostatic reactor, and the enhancement factors were calculated at different volume fractions of dispersed phase and stirrer speeds. The model predictions agree well with the experimental data.
Bibliography:TU991.57
TQ028.8
11-3270/TQ
enhancement factor, mass transfer, absorption, gas-liquid-liquid
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1004-9541
2210-321X
DOI:10.1016/S1004-9541(08)60250-5