Multiscale analysis and modeling of multiphase chemical reactors
文献类型：期刊论文
| 作者 | Bi, HTT; Li, JH |
| 刊名 | ADVANCED POWDER TECHNOLOGY
 |
| 出版日期 | 2004 |
| 卷号 | 15期号:6页码:607-627 |
| 关键词 | fluidized bed reactor multiscale modeling energy-minimization multiscale reactor model compromise variational criterion |
| ISSN号 | 0921-8831 |
| 其他题名 | Adv. Powder Technol. |
| 中文摘要 | Multiphase gas-solids fluidized bed reactors are of multiscale structure, i.e. single particles, particle clusters/bubbles and reactor vessel. and of multiple physics, i.e. hydrodynamics, heat and mass transfer, and reaction kinetics. The formation of complex structures/patterns in each regime is a result of a compromise between dominant mechanisms at multiple scales. Coupling of hydrodynamics, heat and mass transfer, and reaction kinetics takes place at molecular and particle levels where conductive and convective transfer and diffusion within the internal pores of the catalyst are accompanied by the adsorption, surface reaction and desorption of reactant and product on the surface. This work first presents an overview of the general multiscale approaches, including the sequential approach, iterative/concurrent approach and the variational multiscale approach. applicable to multiphase flow and reaction systems, followed by a review, on multiscale modeling of gas-solids fluidized bed reactors including bubbling/turbulent and fast fluidized bed reactors. Finally, a multiscale circulating fluidized bed reactor model is outlined in which hydrodynamics are modeled by the combined energy-minimization multiscale/two-fluid computational fluid dynamics coupled with multiscale heat and mass transfer sub-models and reaction kinetics. The interaction and compromise among dominant mechanisms are represented by the variational criterion. |
| 英文摘要 | Multiphase gas-solids fluidized bed reactors are of multiscale structure, i.e. single particles, particle clusters/bubbles and reactor vessel. and of multiple physics, i.e. hydrodynamics, heat and mass transfer, and reaction kinetics. The formation of complex structures/patterns in each regime is a result of a compromise between dominant mechanisms at multiple scales. Coupling of hydrodynamics, heat and mass transfer, and reaction kinetics takes place at molecular and particle levels where conductive and convective transfer and diffusion within the internal pores of the catalyst are accompanied by the adsorption, surface reaction and desorption of reactant and product on the surface. This work first presents an overview of the general multiscale approaches, including the sequential approach, iterative/concurrent approach and the variational multiscale approach. applicable to multiphase flow and reaction systems, followed by a review, on multiscale modeling of gas-solids fluidized bed reactors including bubbling/turbulent and fast fluidized bed reactors. Finally, a multiscale circulating fluidized bed reactor model is outlined in which hydrodynamics are modeled by the combined energy-minimization multiscale/two-fluid computational fluid dynamics coupled with multiscale heat and mass transfer sub-models and reaction kinetics. The interaction and compromise among dominant mechanisms are represented by the variational criterion. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | FLUIDIZED-BED REACTOR ; GAS-SOLID FLOW ; OLEFIN POLYMERIZATION ; MASS-TRANSFER ; COMPLEX-SYSTEMS ; CFD SIMULATION ; RISER REACTORS ; DECOMPOSITION ; DEPOSITION |
| 收录类别 | ISTP ; SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000226454100003 |
| 公开日期 | 2013-11-05 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4964]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Multi Phase React Lab, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bi, HTT,Li, JH. Multiscale analysis and modeling of multiphase chemical reactors[J]. ADVANCED POWDER TECHNOLOGY,2004,15(6):607-627. |
| APA | Bi, HTT,&Li, JH.(2004).Multiscale analysis and modeling of multiphase chemical reactors.ADVANCED POWDER TECHNOLOGY,15(6),607-627. |
| MLA | Bi, HTT,et al."Multiscale analysis and modeling of multiphase chemical reactors".ADVANCED POWDER TECHNOLOGY 15.6(2004):607-627. |
入库方式： OAI收割
来源：过程工程研究所
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