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 Publication | POWDER TECHNOLOGY
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ISSN | 0032-5910 |
Volume | 312Pages: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. |
Keyword | Mean Residence Time Difference Wide Size Distribution Baffle Fluidized Bed |
Subtype | Article |
WOS Headings | Science & Technology ; Technology |
DOI | 10.1016/j.powtec.2017.02.052 |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | Part Ii ; Segregation ; Entrainment ; Baffles ; Solids ; Elutriation ; Behavior ; Mixture ; Systems ; Powder |
WOS Research Area | Engineering |
WOS Subject | Engineering, Chemical |
Funding Organization | National Natural Science Foundation of China(21325628) ; Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences,(COM2016A001) |
WOS ID | WOS:000398651500027 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ipe.ac.cn/handle/122111/22140 |
Collection | 多相复杂系统国家重点实验室 |
Affiliation | 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 |
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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Control of mean resi(979KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text |
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