Characteristics of gas-solid mass transfer in a cocurrent downflow circulating fluidized bed reactor

CORC > 过程工程研究所 > 中国科学院过程工程研究所 > 研究所（批量导入）

	Characteristics of gas-solid mass transfer in a cocurrent downflow circulating fluidized bed reactor
	Luo, Baolin ; Yan, Dong ; Ma, Ying L.; Barghi, Shahzad ; Zhu, Jesse
刊名	CHEMICAL ENGINEERING JOURNAL
	2007-08-01
卷号	132 期号:1-3 页码:9-15
关键词	downflow circulating fluidized bed gas-solids mass transfer steady-state adsorption
ISSN号	1385-8947
其他题名	Chem. Eng. J.
中文摘要	The characteristics of gas-solids mass transfer were studied in a downer reactor with the adsorption Of CO2 tracer by activated charcoal particle. Axial distribution profiles of the CO, tracer concentration were measured under several different operating conditions. Mass transfer coefficient and axial dispersion coefficient were evaluated with a non-linear regressing method (Marquardt method). It was found that the operating conditions such as solids circulation rate and gas velocity have complicated effects on the gas-solids mass transfer coefficient, and the effect of superficial gas velocity seemed to be more significant than that of solids circulation rate. The following empirical correlations were found to best fit the experimental data for axial dispersion coefficient, E. and overall mass transfer coefficient, K-F: Pe(1) = Lu-g/E-a = 0.226Re(0.499)m(0.302) Pe(2) = u(g)/K(F)aL = 0.000185Re(0.618)m(-0.983) with m=G(s)/(u(g)rho(p)) = nu(s)(1-epsilon)/(u(g)epsilon). (c) 2007 Elsevier B.V. All rights reserved.
英文摘要	The characteristics of gas-solids mass transfer were studied in a downer reactor with the adsorption Of CO2 tracer by activated charcoal particle. Axial distribution profiles of the CO, tracer concentration were measured under several different operating conditions. Mass transfer coefficient and axial dispersion coefficient were evaluated with a non-linear regressing method (Marquardt method). It was found that the operating conditions such as solids circulation rate and gas velocity have complicated effects on the gas-solids mass transfer coefficient, and the effect of superficial gas velocity seemed to be more significant than that of solids circulation rate.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	DOWNER ; PRESSURE ; FLOW
收录类别	SCI
原文出处	://WOS:000247716600002
语种	英语
WOS记录号	WOS:000247716600002
公开日期	2013-10-15
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/3404]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Univ Western Ontario, Dept Chem & Biochem Engn, Fac Engn, London, ON N6A 5B9, Canada 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Luo, Baolin,Yan, Dong,Ma, Ying L.,et al. Characteristics of gas-solid mass transfer in a cocurrent downflow circulating fluidized bed reactor[J]. CHEMICAL ENGINEERING JOURNAL,2007,132(1-3):9-15.
APA	Luo, Baolin,Yan, Dong,Ma, Ying L.,Barghi, Shahzad,&Zhu, Jesse.(2007).Characteristics of gas-solid mass transfer in a cocurrent downflow circulating fluidized bed reactor.CHEMICAL ENGINEERING JOURNAL,132(1-3),9-15.
MLA	Luo, Baolin,et al."Characteristics of gas-solid mass transfer in a cocurrent downflow circulating fluidized bed reactor".CHEMICAL ENGINEERING JOURNAL 132.1-3(2007):9-15.