Characteristics of gas-solid mass transfer in a cocurrent downflow circulating fluidized bed reactor
文献类型：期刊论文
| 作者 | Luo, Baolin; Yan, Dong; Ma, Ying L.; Barghi, Shahzad; Zhu, Jesse |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 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 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000247716600002 |
| 公开日期 | 2013-10-15 |
| 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. |
入库方式： OAI收割
来源：过程工程研究所
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