Micro fluidized beds: Wall effect and operability
文献类型：期刊论文
| 作者 | Liu, Xinhua; Xu, Guangwen; Gao, Shiqiu |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2008-04-01 |
| 卷号 | 137期号:2页码:302-307 |
| 关键词 | wall effect gas-solid flow micro fluidized bed minimum fluidization velocity minimum bubbling velocity |
| ISSN号 | 1385-8947 |
| 其他题名 | Chem. Eng. J. |
| 中文摘要 | The minimum fluidization and minimum bubbling velocities of silica sand particles in air-blown micro beds of 120 mm high and with inner diameters of less than 32 mm were investigated to understand the wall effect in micro fluidized beds (MFBs) and the operability of the MFBs. Experimental results demonstrated that both the quoted velocities obviously increase with decreasing the inner diameter of the bed. A specific wall effect determined as the pressure drop per unit volume of particle bed in excess of the predicted pressure drop from the Ergun equation was proposed to quantitatively account for the influence of bed wall friction. By characterizing the fluidization qualities of differently sized particles in different MFBs, the article suggested further an optimal combination of bed diameter and particle size in the range of the static bed heights from 20 to 50 mm for the so-called micro fluidized bed (MFB) reactor devised to perform reaction(s) with minimal suffering from external gas mixing and gas diffusion. (c) 2007 Elsevier B.V. All fights reserved. |
| 英文摘要 | The minimum fluidization and minimum bubbling velocities of silica sand particles in air-blown micro beds of 120 mm high and with inner diameters of less than 32 mm were investigated to understand the wall effect in micro fluidized beds (MFBs) and the operability of the MFBs. Experimental results demonstrated that both the quoted velocities obviously increase with decreasing the inner diameter of the bed. A specific wall effect determined as the pressure drop per unit volume of particle bed in excess of the predicted pressure drop from the Ergun equation was proposed to quantitatively account for the influence of bed wall friction. By characterizing the fluidization qualities of differently sized particles in different MFBs, the article suggested further an optimal combination of bed diameter and particle size in the range of the static bed heights from 20 to 50 mm for the so-called micro fluidized bed (MFB) reactor devised to perform reaction(s) with minimal suffering from external gas mixing and gas diffusion. (c) 2007 Elsevier B.V. All fights 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] | POLYDISPERSE SYSTEMS ; HIGH-TEMPERATURE ; FINE POWDERS ; VELOCITY ; PARTICULATE ; PREDICTION ; PARTICLES ; PRESSURE ; VOIDAGE ; AIR |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000254229100015 |
| 公开日期 | 2013-10-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/2810]  |
| 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, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xinhua,Xu, Guangwen,Gao, Shiqiu. Micro fluidized beds: Wall effect and operability[J]. CHEMICAL ENGINEERING JOURNAL,2008,137(2):302-307. |
| APA | Liu, Xinhua,Xu, Guangwen,&Gao, Shiqiu.(2008).Micro fluidized beds: Wall effect and operability.CHEMICAL ENGINEERING JOURNAL,137(2),302-307. |
| MLA | Liu, Xinhua,et al."Micro fluidized beds: Wall effect and operability".CHEMICAL ENGINEERING JOURNAL 137.2(2008):302-307. |
入库方式： OAI收割
来源：过程工程研究所
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