文献类型：期刊文献

英文题名：Packing Size Effect on the Mean Bubble Diameter in a Fixed Bed under Gas Liquid Concurrent Upflow

作者：Chen, Zhaoxuan[1];Yang, Jun[1];Ling, Dan[1];Liu, Peng[1];Ilankoon, I. M. Saman K.[2];Huang, Zibin[1];Cheng, Zhenmin[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Monash Univ, Sch Engn, Discipline Chem Engn, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul, Malaysia

年份：2017

卷号：56

期号：45

起止页码：13491

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20174704425485);WOS:【SCI-EXPANDED(收录号:WOS:000415785500060)】；

基金：The authors are grateful for financial support from the Natural Science Foundation of China (Grant 21676085) and the open project of the State Key Laboratory of Chemical Engineering of China (Grant SKL-ChE-16C01).

语种：英文

摘要：The influence of the packing size on the mean bubble diameter in a flooded bed reactor packed with glass spheres of three different diameters (1.9, 4.0, and 9.3 mm) was investigated. The gas saturation and interfacial area were respectively measured by electrical capacitance tomography and chemical absorption of oxygen. It is observed that the presence of packing has greatly reduced the bubble diameter and increased the gas saturation compared with a bubble column. To explore the underlying relationship between the bubble diameter and packing size, the packing size featured by the pore diameter was utilized as a reference. It shows that the bubble diameter is 2-3 times the pore for the 1.9 and 4.0 mm packings, while they are approached for the packing of 9.3 mm. An empirical correlation was proposed for the mean bubble diameter prediction with a discrepancy of less than 25% from the measurements.