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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
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume312Pages:270-276
Abstract

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.

KeywordMean Residence Time Difference Wide Size Distribution Baffle Fluidized Bed
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.powtec.2017.02.052
Indexed BySCI
Language英语
WOS KeywordPart Ii ; Segregation ; Entrainment ; Baffles ; Solids ; Elutriation ; Behavior ; Mixture ; Systems ; Powder
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(21325628) ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences,(COM2016A001)
WOS IDWOS:000398651500027
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22140
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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