|
1
|
Quantitative Measurement of Solids Holdup for Group A and B Particles Using Images and Its Application in Fluidized Bed Reactors. Processes (Basel) 2022. [DOI: 10.3390/pr10030610] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Solids holdup as one of the main parameters in characterizing the performance of fluidized bed reactors is widely concerned. With its development and improvement, visualization technology has been applied in fluidization because of its little disturbance to the flow. In this study, four types of particles with different properties are tested in a narrow rectangular fluidized bed equipped with a high-speed video camera. Calibration curves of these different types of particles are achieved by correlating the grayscale of the digital images with the corresponding solids holdup. These calibration curves are further applied to obtain the average solids holdup across the sectional area and local solids holdup from the center towards the wall in both a gas-solids turbulent fluidized bed and a circulating fluidized bed to verify the results. The calibration method works well for solids holdup of different types of particles in both dense and dilute fluidization systems. This method is important to characterize the fluidization quality and reactor performance with a wide operating condition.
Collapse
|
|
2
|
Ma Z, Ma H, Qian W, Li Y, Zhang H, Sun Q, Ying W. Flow development and prediction of solids concentration in a large gas‐solids turbulent fluidized bed. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.23993] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhunzhun Ma
- Engineering Research Centre of Large Scale Reactor Engineering and Technology Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology Shanghai China
| | - Hongfang Ma
- Engineering Research Centre of Large Scale Reactor Engineering and Technology Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology Shanghai China
| | - Weixin Qian
- Engineering Research Centre of Large Scale Reactor Engineering and Technology Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology Shanghai China
| | - Yongzheng Li
- Engineering Research Centre of Large Scale Reactor Engineering and Technology Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology Shanghai China
| | - Haitao Zhang
- Engineering Research Centre of Large Scale Reactor Engineering and Technology Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology Shanghai China
| | - Qiwen Sun
- State Key Laboratory of Coal Liquefaction and Coal Chemical Technology Shanghai China
| | - Weiyong Ying
- Engineering Research Centre of Large Scale Reactor Engineering and Technology Ministry of Education, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology Shanghai China
| |
Collapse
|
|
3
|
Affiliation(s)
- Jia Wei Chew
- School of Chemical and Biomedical Engineering Nanyang Technological University Singapore Singapore
- Singapore Membrane Technology Center Nanyang Environment and Water Research Institute, Nanyang Technological University Singapore Singapore
| | - Ray A. Cocco
- Particulate Solid Research, Inc. Chicago Illinois USA
| |
Collapse
|
|
4
|
Numerical and experimental investigations of instability in a spouted bed with non-spherical particles. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2020.10.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
|
5
|
Li Y, Zhang X, Zhai G, Zhang H, Li T, Sun Q, Ying W. LDV measurements of particle velocity distribution in an annular stripper. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2019.03.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
|
6
|
Zhang X, Qian W, Zhang H, Sun Q, Ying W. Online measurement of solids motion in fluidized bed reactor with different distributor for Fischer–Tropsch synthesis. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2017.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
|
7
|
Qin C, Tang J, Qiu X, Xi Z, Zhao L. Improving particle flow in liquid-solid countercurrent extraction tower by insert structure optimization: A combined study on experiments and DEM simulations. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|