Experimental study of particle flow in a gas-solid separator with baffles using PDPA
文献类型：期刊论文
| 作者 | Du, L; Yao, JZ; Lin, WG |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2005-04-01 |
| 卷号 | 108期号:1-2页码:59-67 |
| 关键词 | down-flow reactor gas-solid separator particle flow PDPA |
| ISSN号 | 1385-8947 |
| 其他题名 | Chem. Eng. J. |
| 中文摘要 | Particle flow behavior in a gas-solid separator with a guide baffle and separation baffles developed by the Institute of Process Engineering (IPE) for cocurrent down-flow reactors has been studied with a Phase Doppler Particle Analyzer (PDPA), which allows to measure the particle size and velocity simultaneously. Profiles of particle velocities, particle size and particle number density at different heights in the separator were obtained. Analysis of the velocity profile indicates that the particle inertia has a significant effect on the behavior of particles in different size groups: the trajectories of the smaller particles are more influenced by the gas stream in relation to the larger, more heavier, particles. Experimental results reveal that the guide baffle together with the separation baffles plays a role of guidance as well as particle concentrators. Particles entrained by the gas flowing upward along the top side of the separation baffle may mainly come from the regions far from the guide baffle surface. Small particles are gradually dispersed toward the periphery of the two-phase flow field after being ejected from the rectangular nozzle, giving rise to a bimodal behavior of particle size distributions in the region far from the guide baffle. © 2005 Elsevier B.V. All rights reserved. |
| 英文摘要 | Particle flow behavior in a gas-solid separator with a guide baffle and separation baffles developed by the Institute of Process Engineering (IPE) for cocurrent down-flow reactors has been studied with a Phase Doppler Particle Analyzer (PDPA), which allows to measure the particle size and velocity simultaneously. Profiles of particle velocities, particle size and particle number density at different heights in the separator were obtained. Analysis of the velocity profile indicates that the particle inertia has a significant effect on the behavior of particles in different size groups: the trajectories of the smaller particles are more influenced by the gas stream in relation to the larger, more heavier, particles. Experimental results reveal that the guide baffle together with the separation baffles plays a role of guidance as well as particle concentrators. Particles entrained by the gas flowing upward along the top side of the separation baffle may mainly come from the regions far from the guide baffle surface. Small particles are gradually dispersed toward the periphery of the two-phase flow field after being ejected from the rectangular nozzle, giving rise to a bimodal behavior of particle size distributions in the region far from the guide baffle. © 2005 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Environmental ; Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | CIRCULATING FLUIDIZED-BED ; ELECTRICAL CAPACITANCE TOMOGRAPHY ; CATALYTIC CRACKING ; DOWNER REACTOR ; 2-PHASE FLOW ; ANALYZER ; RISER ; SPRAY |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000228939800007 |
| 公开日期 | 2013-10-25 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4162]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Multiphase React Lab, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, L,Yao, JZ,Lin, WG. Experimental study of particle flow in a gas-solid separator with baffles using PDPA[J]. CHEMICAL ENGINEERING JOURNAL,2005,108(1-2):59-67. |
| APA | Du, L,Yao, JZ,&Lin, WG.(2005).Experimental study of particle flow in a gas-solid separator with baffles using PDPA.CHEMICAL ENGINEERING JOURNAL,108(1-2),59-67. |
| MLA | Du, L,et al."Experimental study of particle flow in a gas-solid separator with baffles using PDPA".CHEMICAL ENGINEERING JOURNAL 108.1-2(2005):59-67. |
入库方式： OAI收割
来源：过程工程研究所
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