文献类型：期刊文献

英文题名：Dynamic behavior of droplets impacting porous particles in oil-water separation

作者：Ma, Likun[1];Huang, Qinghai[1];Lu, Zhaojin[1];Zhang, Lian[1];Zhou, Jibin[2];Wang, Zhiwen[1];Bai, Zhishan[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Res Ctr Lowercarbon Catalysis Technol, Dalian 116023, Peoples R China

年份：2025

卷号：309

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20251118034129);WOS:【SCI-EXPANDED(收录号:WOS:001445247000001)】；

基金：Acknowledgement This work is part of a research program financially supported by the National Science Fund for Distinguished Young Scholars, China (No. 22225804) , the National Natural Science Foundation of China (No. 22308105) , China Postdoctoral Science Foundation (No. 2023TQ0117) , Shanghai Pujiang Program (No. 24PJD023) and the Shanghai Post-doctoral Excellence Program (No. 2023244) .

语种：英文

外文关键词：Porous particle; Oil-water separation; Mask R-CNN; Droplet; Dynamic behavior

摘要：Porous particles are commonly used in oil-water separation, and dynamic behaviors of oil droplets impacting porous particles, which are crucial for separation performances, remain unrevealed. In this work, impact behaviors of oil droplets on porous particles were experimentally measured. Mask R-CNN convolutional neural network was used to capture droplet morphology evolution. It was clearly found dynamic behaviors were divided into a damped-oscillation stage (Stage I) and a penetration-absorption stage (Stage II). The adsorption capacity, droplet viscosity and size significantly affected impact processes. Additionally, shear flows enhanced droplet absorption rates, whereas critical rotational speeds were observed with occurrences of droplets' shear-induced fragmentation. Ultimately, a semi-theoretical correlation of droplet morphological evolution on porous particles combined Oscillation theory with Darcy's law was proposed. According to authors' knowledge, this is the first visualization experiment work of droplets' impact behaviors on porous particles in the liquid phase, providing theoretical guides for optimizing industrial oil-water separations.