Numerical comparison of two modes of gas-solid riser operation: Fluid catalytic cracking vs CFB combustor
文献类型：期刊论文
| 作者 | Mei, Yifeng1,4; Zhao, Mingzhao1,2; Lu, Bona1; Chen, Sheng3; Wang, Wei1,4
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| 刊名 | PARTICUOLOGY
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 31页码:42-48 |
| 关键词 | Fluidization Computational fluid dynamics Simulation Fluid catalytic cracking Circulating fluidized bed Choking |
| ISSN号 | 1674-2001 |
| 英文摘要 | Two modes of gas-solid riser operation, i.e., fluid catalytic cracking (FCC) and circulating fluidized bed combustor (CFBC), have been recognized in literature; particularly in the understanding of choking phenomena. This work compares these two modes of operation through computational fluid dynamics (CFD) simulation. In CFD simulations, the different operations are represented by fixing appropriate boundary conditions: solids flux or solids inventory. It is found that the FCC and CFBC modes generally have the same dependence of solids flux on the mean solids volume fraction or solids inventory. However, during the choking transition, the FCC mode of operation needs more time to reach a steady state; thus the FCC system may have insufficient time to respond to valve adjustments or flow state change, leading to the choking. The difference between FCC and CFBC systems is more pronounced for the systems with longer risers. A more detailed investigation of these two modes of riser operation may require a three-dimensional full loop simulation with dynamic valve adjustment. (C) 2016 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 关键词[WOS] | MULTISCALE CFD ; FAST FLUIDIZATION ; BED BOILER ; FULL-LOOP ; FLOW ; SIMULATION ; CHOKING ; HYDRODYNAMICS ; SUSPENSIONS ; PARTICLES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000397695500006 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/22149]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China 3.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mei, Yifeng,Zhao, Mingzhao,Lu, Bona,et al. Numerical comparison of two modes of gas-solid riser operation: Fluid catalytic cracking vs CFB combustor[J]. PARTICUOLOGY,2017,31:42-48. |
| APA | Mei, Yifeng,Zhao, Mingzhao,Lu, Bona,Chen, Sheng,&Wang, Wei.(2017).Numerical comparison of two modes of gas-solid riser operation: Fluid catalytic cracking vs CFB combustor.PARTICUOLOGY,31,42-48. |
| MLA | Mei, Yifeng,et al."Numerical comparison of two modes of gas-solid riser operation: Fluid catalytic cracking vs CFB combustor".PARTICUOLOGY 31(2017):42-48. |
入库方式： OAI收割
来源：过程工程研究所
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