Control of mean residence time difference for particles with wide size distribution in fluidized beds

doi:10.1016/j.powtec.2017.02.052

	Control of mean residence time difference for particles with wide size distribution in fluidized beds
	Zhang, Libo 1,2; Li, Jun 1; Zhu, Qingshan 1,2; Hu, Chaoquan 1; Li, Hongzhong 1
	2017-05-01
发表期刊	POWDER TECHNOLOGY
ISSN	0032-5910
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
DOI	10.1016/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
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
推荐引用方式 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.