Liquid flow pattern transition, droplet diameter and size distribution in the cavity zone of a rotating packed bed: A visual study

2017 ◽  
Vol 158 ◽  
pp. 429-438 ◽  
Author(s):  
Le Sang ◽  
Yong Luo ◽  
Guang-Wen Chu ◽  
Jing-Peng Zhang ◽  
Yang Xiang ◽  
...  
Author(s):  
André Mendes Quintino ◽  
Davi Lotfi Lavor Navarro da Rocha ◽  
Oscar Mauricio Hernandez Rodriguez

Processes ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 724
Author(s):  
Wang ◽  
Wu ◽  
Yang ◽  
Wang ◽  
Liu ◽  
...  

Rotating packed bed (RPB) has been demonstrated as a significant and emerging technology to be applied in natural gas desulfurization. However, droplet characteristics and principle in H2S selective absorption with N-methyldiethanolamine (MDEA) solution have seldom been fully investigated by experimental method. Therefore, a 3D Eulerian–Lagrangian approach has been established to investigate the droplet characteristics. The discrete phase model (DPM) is implemented to track the behavior of droplets, meanwhile the collision model and breakup model are employed to describe the coalescence and breakup of droplets. The simulation results indicate that rotating speed and radial position have a dominant impact on droplet velocity, average residence time and average diameter rather than initial droplet velocity. A short residence time of 0.039–0.085 s is credited in this study for faster mass transfer and reaction rate in RPB. The average droplet diameter decreases when the initial droplet velocity and rotating speed enhances. Restriction of minimum droplet diameter for it to be broken and an appropriate rotating speed have also been elaborated. Additional correlations on droplet velocity and diameter have been obtained mainly considering the rotating speed and radial position in RPB. This proposed formula leads to a much better understanding of droplet characteristics in RPB.


2021 ◽  
pp. 130874
Author(s):  
Wei Zhang ◽  
Peng Xie ◽  
Yuxing Li ◽  
Lin Teng ◽  
Jianlu Zhu

2019 ◽  
Vol 209 ◽  
pp. 115180 ◽  
Author(s):  
Jing-Peng Zhang ◽  
Wei Liu ◽  
Yong Luo ◽  
Guang-Wen Chu ◽  
Hai-Kui Zou ◽  
...  

2017 ◽  
Vol 172 ◽  
pp. 216-229 ◽  
Author(s):  
Peng Xie ◽  
Xuesong Lu ◽  
Xin Yang ◽  
Derek Ingham ◽  
Lin Ma ◽  
...  

2000 ◽  
Vol 55 (9) ◽  
pp. 1699-1706 ◽  
Author(s):  
Kai Guo ◽  
Fen Guo ◽  
Yuanding Feng ◽  
Jianfeng Chen ◽  
Chong Zheng ◽  
...  

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