DOI: 10.1016/j.jcou.2018.05.002
Scopus记录号: 2-s2.0-85046869285
论文题名: An experimental and theoretical investigation of pure carbon dioxide absorption in aqueous sodium hydroxide in glass millichannels
作者: Durgadevi A. ; Pushpavanam S.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 26 起始页码: 133
结束页码: 142
语种: 英语
英文关键词: Absorption
; Dissolution dynamics
; Lumped parameter model
; Mass transfer coefficient
; Milli channel
Scopus关键词: Absorption
; Carbon dioxide
; Dissolution
; Glass
; Intersections
; Lumped parameter networks
; Sodium hydroxide
; Solutions
; Volumetric analysis
; Dissolution dynamics
; Empirical correlations
; Gas and liquid flows
; Lumped parameter modeling
; Milli channel
; Sodium hydroxide solutions
; Theoretical investigations
; Volumetric mass transfer coefficient
; Mass transfer
英文摘要: In this work, chemisorption experiments of pure CO2 (99% (v/v)) in different concentrations of sodium hydroxide solutions were carried out in a T-junction glass circular milli-channel in the slug flow regime. The absorption of the gas from the slug results in a shrinking of the slug as it moves along the channel. The rate of decrease of slug size and slug velocity are used to quantify the mass transfer rate. A lumped parameter model is developed to study the dissolution dynamics of CO2 slugs in the aqueous solution. The experimental data in this controlled study and the model developed are used to predict the liquid side volumetric mass transfer coefficient. The enhancement of mass transfer due to chemical reaction in the liquid phase is also quantified. The effect of various parameters like gas and liquid flow rates, concentration of NaOH on system behaviour is examined. An empirical correlation for dimensionless mass transfer coefficient is obtained from the experimental data which can be used to design absorption columns. © 2018 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111842
Appears in Collections: 气候减缓与适应
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作者单位: Department of Chemical Engineering, Indian Institute of Technology, IIT, Madras, Madras TN, 600036, India
Recommended Citation:
Durgadevi A.,Pushpavanam S.. An experimental and theoretical investigation of pure carbon dioxide absorption in aqueous sodium hydroxide in glass millichannels[J]. Journal of CO2 Utilization,2018-01-01,26