Experimental study of gas pressure drop in rotating packed bed with rotational-stationary packing
| Autor: | Manjun Jing, Shuhua Chen, Leilei Du, Xuewu Liu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Packed bed
Pressure drop Chromatography Chemistry General Chemical Engineering Drop (liquid) Rotational speed 02 engineering and technology Mechanics 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Volumetric flow rate Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Mass transfer Wet gas Total pressure 0210 nano-technology |
| Zdroj: | The Canadian Journal of Chemical Engineering. 96:590-596 |
| ISSN: | 0008-4034 |
| DOI: | 10.1002/cjce.22936 |
| Popis: | Rotating packed bed (RPB) with rotational-stationary packing is a novel instrument that could greatly enhance the mass transfer compared with the conventional packed columns. The structure of rotational-stationary packing make the gas repeatedly enter the packing to increase end effect. Meanwhile, owing to the resistance of the packing to the gas, the gas pressure drop of rotating packed bed with rotational-stationary packing becomes the necessary factor that can evaluate the equipment. The gas pressure drop of the dry bed and wet bed were determined at various operating variables, including the rotational speed, the gas flow rate, and the liquid flow rate. In this work, the gas pressure drop was classified on the basis of the gas flow path and the corresponding theoretical formulas were provided. The pressure drop of the dry bed increased with increasing rotational speed and gas flow rate was observed, and the liquid flow rate had little influence on the pressure drop of the wet bed. Finally, the experimental values were fitted to the theoretical formula and the relationship between total pressure drop and rotational speed, gas flow rate in a RPB with rotational-stationary packing was presented. The theoretical calculated values agreed well with the experimental data with a deviation within 6%. These will provide the gas pressure drop theoretical calculation formula for a kind of RPB with rotational-stationary packing. This article is protected by copyright. All rights reserved |
| Databáze: | OpenAIRE |
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