LAPSE:2020.0938
Published Article
LAPSE:2020.0938
Effects of the Microbubble Generation Mode on Hydrodynamic Parameters in Gas−Liquid Bubble Columns
Shanglei Ning, Haibo Jin, Guangxiang He, Lei Ma, Xiaoyan Guo, Rongyue Zhang
August 29, 2020
The hydrodynamics parameters of microbubbles in a bubble column were studied in an air−water system with a range of superficial gas velocity from 0.013 to 0.100 m/s using a differential pressure transmitter, double probe optical fiber probe, and electrical resistance tomography (ERT) technique. Two kinds of microbubble generators (foam gun, sintered plate) were used to generate microbubbles in the bubble column with a diameter of 90 mm, and to compare the effects of different foaming methods on the hydrodynamics parameters in the bubble column. The hydrodynamic behavior of the homogeneous regime and the transition regime was also studied. The results show that, by changing the microbubble-generating device, the hydrodynamic parameters in the column are changed, and both microbubble-generating devices can obtain a higher gas holdup and a narrower chord length distribution. When the foam gun is used as the gas distributor, a higher gas holdup and a narrower average bubble chord length can be obtained than when the sintered plate is used as the gas distributor. In addition, under different operating conditions, the relative frequency distribution of the chord length at different radial positions is mainly concentrated in the interval of 0−5 mm, and it is the highest in the center of the column.
Keywords
ERT, foam gun, microbubble, optical fiber probe, sintered plate
Subject
Suggested Citation
Ning S, Jin H, He G, Ma L, Guo X, Zhang R. Effects of the Microbubble Generation Mode on Hydrodynamic Parameters in Gas−Liquid Bubble Columns. (2020). LAPSE:2020.0938
Author Affiliations
Ning S: Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
Jin H: Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China [ORCID]
He G: Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China [ORCID]
Ma L: Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
Guo X: Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China [ORCID]
Zhang R: Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
Journal Name
Processes
Volume
8
Issue
6
Article Number
E663
Year
2020
Publication Date
2020-06-03
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8060663, Publication Type: Journal Article
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LAPSE:2020.0938
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doi:10.3390/pr8060663
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Aug 29, 2020
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CC BY 4.0
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Aug 29, 2020
 
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Calvin Tsay
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