文章基本信息

标题：Modelling and Experimental Study of Membrane Wetting in Microporous Hollow Fiber Membrane Contactors
本地全文：下载
作者：Liyun Cui ; Zhongwei Ding ; Liying Liu 等
期刊名称：Canadian Journal of Chemical Engineering
印刷版ISSN：0008-4034
出版年度：2015
卷号：93
期号：7
页码：1254-1265
DOI：10.1002/cjce.22210
语种：English
出版社：Chemical Institute of Canada
摘要：A kinetic model has been developed to predict the distribution of wetness along a hollow fiber and the average wetness as a function of time in hollow fiber membrane (HFM) contactors. The membrane absorption experiments were conducted using the diethanolamine (DEA) solution as absorbent to absorb CO2 in polyvinylidene fluoride (PVDF) and polypropylene (PP) HFM contactors. The influences of operating conditions (such as solution concentration, temperature, liquid and gas flow rates) on the membrane wetting process in a HFM contactor were also investigated in experiments. The experimental data were fitted to the proposed kinetic equations. The fitting results indicate that the proposed kinetic equation successfully described the membrane wetting process and prove that the membrane wetting rate was controlled by the solute adsorption on the bare pore wall. Therefore, this model may provide support for the design of membrane contactors suffering from membrane wetting.
关键词：enHFM contactormembrane wettingDEA solutiontrans‐membrane pressure difference