Controllable and high-throughput preparation of microdroplet using an ultra-high speed rotating packed bed
Controllable and high-throughput preparation of microdroplet using an ultra-high speed rotating packed bed作者机构:State Key Laboratory of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijing 100029China Research Center of the Ministry of Education for High Gravity Engineering and TechnologyBeijing University of Chemical TechnologyBeijing 100029China
出 版 物:《Chinese Journal of Chemical Engineering》 (中国化学工程学报(英文版))
年 卷 期:2022年第35卷第8期
页 面:116-124页
核心收录:
学科分类:081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 081701[工学-化学工程]
基 金:supported by National Natural Science Foundation of China(21725601)
主 题:Ultra-high speed rotating packed bed Microdroplet Controllable preparation High throughput
摘 要:Microdroplets and their dispersion,with a large specific surface area and a short diffusion distance,have been applied in various unit operations and reaction ***,it is still a challenge to control the size and size distribution of microdroplets,especially for high-throughput *** this work,a novel ultra-high speed rotating packed bed(UHS-RPB)was invented,in which rotating foam packing with a speed of 4000-12000 r·min^(-1) provides microfluidic channels to disperse liquid into microdroplets with high *** generated microdroplets can be directly dispersed into a continuous falling film for obtaining a mixture of microdroplet *** this UHS-RPB,the effects of rotational speed,liquid initial velocity,liquid viscosity,liquid surface tension and packing pore size on the average size(d_(32))and size distribution of microdroplets were systematically *** showed that the UHS-RPB could produce microdroplets with a d_(32) of 25-63μm at a liquid flow rate of 1025 L·h^(-1),and the size distribution of the microdroplets accords well with Rosin-Rammler distribution *** addi-tion,a correlation was established for the prediction of d_(32),and the predicted d_(32) was in good agreement with the experimental data with a deviation within±15%.These results demonstrated that UHS-RPB could be a promising candidate for controllable preparation of uniform microdroplets.