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Experimental Investigation of Flow Development in Large-Scale Bubble Columns in the Churn-Turbulent Regime
Guan, XP; Yang, N; Li, ZQ; Wang, LJ; Cheng, YW; Li, X
2017-03-23
发表期刊INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
卷号55页码:3125
摘要Flow development in the bubble columns is of importance for the sparger design and reactor scale up. In the present study, axial development of local gas holdup and liquid velocity in two bubble columns (0.5 and 0.8 m in diameter, respectively) operated in the churn-turbulent regime was experimentally investigated. The results show that gas distribution type, superficial gas velocity and column diameter have remarkable influences on the flow development. Compared with the near-wall aeration, the uniform and central aeration will generate more rapid flow development. The observed strong influence of the sparger type on flow development shows an opposite trend to the reported findings. Furthermore, increasing superficial gas velocity or decreasing column diameter will reduce the entrance region length. The scale effect indicates that for the large-scale industrial bubble column reactors, a large portion of flow region may be covered by the distributor region rather than the well-developed region.
关键词Gas Holdup Liquid Recirculation Sparger Design Laminar-flow Reactors Hydrodynamics Behavior Pipe Internals Dynamics
WOS标题词Engineering
DOI10.1021/acs.iecr.5b04015
WOS记录号WOS:000372854600021
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文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22572
专题研究所(批量导入)
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GB/T 7714
Guan, XP,Yang, N,Li, ZQ,et al. Experimental Investigation of Flow Development in Large-Scale Bubble Columns in the Churn-Turbulent Regime[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2017,55:3125, 3130.
APA Guan, XP,Yang, N,Li, ZQ,Wang, LJ,Cheng, YW,&Li, X.(2017).Experimental Investigation of Flow Development in Large-Scale Bubble Columns in the Churn-Turbulent Regime.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,55,3125.
MLA Guan, XP,et al."Experimental Investigation of Flow Development in Large-Scale Bubble Columns in the Churn-Turbulent Regime".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 55(2017):3125.
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