文献类型：期刊文献

英文题名：Circulating jet for enhancing the mass transfer in a gas-liquid stirred tank reactor

作者：Xu, Xiao[1];Wang, Lei[1];Wang, Hualin[2];Liu, Honglai[2];Yang, Qiang[3]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai, Peoples R China;[3]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai, Peoples R China

年份：2022

卷号：68

期号：1

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20213410801565);WOS:【SCI-EXPANDED(收录号:WOS:000686591200001)】；

基金：The authors wish to express their sincere gratitude to the National Key R&D Program of China (2018YFC1801904, 2018YFC1802704, 2019YFC1906703), National Natural Science Foundation of China (52025103, 51678238, 51722806, 21908057), and Shanghai Sailing Program (19YF1411800) for financial support. This project was also sponsored by "Chenguang Program" supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission (20CG39).

语种：英文

外文关键词：bubble Sauter mean diameter; circulating jet; gas holdup; stirred tank reactor; volumetric mass transfer coefficient

摘要：There are some problems in gas-liquid stirred tank reactor (STR), such as low mass transfer efficiency, high exhaust gas oxygen concentration, and low product conversion rate, due to limitations of stirring speed and input power. This article summarizes the effect of adding circulating jet internals on bubble size distribution, overall gas holdup, gas-liquid volumetric mass transfer coefficient, and power per unit volume of the STR. When circulating jet is added, the average bubble Sauter mean diameter in the STR is reduced to 1.26 mm, and the overall gas holdup is increased to 8.23%, which is an increase of 3.62 times of the original STR. The gas-liquid volumetric mass transfer coefficient is increased to 0.05556 s(-1), which is 4.84 times of the original STR. The power per unit volume is increased by only 1.4 times. These data provide references for the design and scale-up of new jet STRs.