Packing Size Effect on the Mean Bubble Diameter in a Fixed Bed under Gas–Liquid Concurrent Upflow
| Autor: | Huang Zibin, Jun Yang, Peng Liu, I.M. Saman K. Ilankoon, Dan Ling, Zhenmin Cheng, Zhaoxuan Chen |
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| Rok vydání: | 2017 |
| Předmět: |
Bubble column
Materials science Pore diameter Fixed bed General Chemical Engineering Bubble 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Glass spheres Crystallography 020401 chemical engineering 0204 chemical engineering Composite material 0210 nano-technology Saturation (chemistry) |
| Zdroj: | Industrial & Engineering Chemistry Research. 56:13490-13496 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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