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Modulating the mean residence time difference of wide-size particles in a fluidized bed
Zhao, Hu1,2; Li, Jun1; Zhu, Qingshan1,2; Li, Hongzhong1,2
2018-02-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume26Issue:2Pages:238-244
AbstractFor non-catalytic gas-solid reaction, it is desirable to match the mean residence time (MRT) of particles and complete conversion time (t(c)) in a fluidized bed. In this study, the MRT differences (MRT ratios) between the coarse particles and the fine particles were investigated in a continuous fluidized bed with a side exit by varying the superficial gas velocity, feed composition and particle size ratio. The results show that the MRT ratio increases firstly and then decreases with increasing the gas velocity. By controlling the gas velocity and the feed composition of coarse particles, the MRT ratio can be modulated from 1.8 to 10.5 at the gas velocity of 1.0 m.s(-1) for the binary mixture with the size ratio of 2.2. The MRT ratio can reach to similar to 12 at the gas velocity of 1.2 m.s(-1) for the particle size ratio of 3.3. The present study has endeavored to obtain fundamental data for an effective plant operation to meet the need of synchronously complete conversion of particles with different sizes during the film diffusion controlling reaction. (C) 2017 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
KeywordFluidized Bed Mean Residence Time Wide Size Distribution Binary Mixture
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cjche.2017.06.018
Indexed BySCI
Language英语
WOS KeywordIRON-ORE FINES ; COARSE PARTICLES ; PART II ; SOLIDS ; ENTRAINMENT ; ELUTRIATION ; BEHAVIOR ; DISTRIBUTIONS ; SEGREGATION ; POWDERS
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationChina National Funds for Distinguished Young Scientists(21325628) ; National Natural Science Foundation of China(91334108) ; State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences(MPCS-2012-A-02 ; MPCS-2014-A-03)
WOS IDWOS:000427859300003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24074
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Hu,Li, Jun,Zhu, Qingshan,et al. Modulating the mean residence time difference of wide-size particles in a fluidized bed[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2018,26(2):238-244.
APA Zhao, Hu,Li, Jun,Zhu, Qingshan,&Li, Hongzhong.(2018).Modulating the mean residence time difference of wide-size particles in a fluidized bed.CHINESE JOURNAL OF CHEMICAL ENGINEERING,26(2),238-244.
MLA Zhao, Hu,et al."Modulating the mean residence time difference of wide-size particles in a fluidized bed".CHINESE JOURNAL OF CHEMICAL ENGINEERING 26.2(2018):238-244.
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