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Control of mean residence time difference for particles with wide size distribution in fluidized beds
Zhang, Libo1,2; Li, Jun1; Zhu, Qingshan1,2; Hu, Chaoquan1; Li, Hongzhong1
2017-05-01
发表期刊POWDER TECHNOLOGY
ISSN0032-5910
卷号312页码:270-276
摘要For non-catalytic gas-solid reactions, it is desirable to match the mean residence time (MRT) of a particle and its complete conversion time (tau) in fluidized beds. In this study, the MRTs of the particles with wide size distribution (WSD) were characterized and tuned in a continuous fluidized bed by varying the gas velocity and by the introduction of baffle. For the WSD particles with maximum diameter ratio of 4, the MRT ratio of the coarse to the fine particles increases from the 1.1 up to 1.7 with only changing the gas velocity. By introducing baffles into the fluidized bed under a relatively high gas velocity, the MRT difference for the different size particles becomes more prominent. With four layers of baffle, the MRT ratio of the coarse to the fine particles can reach 5.5. This study provides a new way to adjust the MRT difference for particles with WSD. (C) 2017 Elsevier B.V. All rights reserved.
关键词Mean Residence Time Difference Wide Size Distribution Baffle Fluidized Bed
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.powtec.2017.02.052
收录类别SCI
语种英语
关键词[WOS]PART II ; SEGREGATION ; ENTRAINMENT ; BAFFLES ; SOLIDS ; ELUTRIATION ; BEHAVIOR ; MIXTURE ; SYSTEMS ; POWDER
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(21325628) ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences,(COM2016A001)
WOS记录号WOS:000398651500027
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22140
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, POB 353, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Zhang, Libo,Li, Jun,Zhu, Qingshan,et al. Control of mean residence time difference for particles with wide size distribution in fluidized beds[J]. POWDER TECHNOLOGY,2017,312:270-276.
APA Zhang, Libo,Li, Jun,Zhu, Qingshan,Hu, Chaoquan,&Li, Hongzhong.(2017).Control of mean residence time difference for particles with wide size distribution in fluidized beds.POWDER TECHNOLOGY,312,270-276.
MLA Zhang, Libo,et al."Control of mean residence time difference for particles with wide size distribution in fluidized beds".POWDER TECHNOLOGY 312(2017):270-276.
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