文献类型：期刊文献

英文题名：Experimental and simulation investigation on the droplet size distribution in a pulsed extraction column with dual wettability internals

作者：Liu, Weiqi[1,2,3];Chen, Hang[1,2,3];Ch, Ha[1,2,3];Song, Xingfu[1,2,3]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake Re, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Engn Res Ctr Resource Proc Engn, Minist Educ, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Joint Int Lab Potassium & Lithium Strateg Resource, Shanghai 200237, Peoples R China

年份：2025

卷号：316

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20252218502021);WOS:【SCI-EXPANDED(收录号:WOS:001501820800001)】；

基金：We would like to acknowledge the financial support from the Na-tional Key Scientific Research Projects of China (2023YFC2908204) , National Natural Science Foundation of China (22078101) and Shanghai Rising-Star Program supported by Science and Technology Commission of Shanghai Municipality (23QA1402000) .

语种：英文

外文关键词：Pulsed extraction column; Composite wettability; Process intensification; Droplet size distribution; Population balance model

摘要：In traditional extraction columns, it is prior to guarantee the droplet dispersion so that it is hard to develop the ideal flow pattern with alternate droplet coalescence and breakage regions. In this study, the novel internals with composite wettability, namely hydrophilia and hydrophobicity, were proposed for the process intensification of pulsed columns. In addition to the successful construction of alternate coalescence-breakage hydrodynamics under adequate turbulent environment, the experimental results showed that the composite wettability internals intensified the droplet dispersion simultaneously. The Sauter mean diameter decreased by 12.74%-55.63% across the selected two-phase systems, while the coefficients of variation remained within the range of 38.58%- 56.49%. This indicated the effective extraction process intensification by increasing interfacial area and decreasing axial mixing. Besides, the population balance model (PBM) was developed for analyzing the process intensification mechanism of the novel internals.