Numerical exploration of the flow regime transition of a novel catalytic cracking reactor and operation mode analysis
文献类型：期刊论文
| 作者 | Han, Caixia1,2; Xu, Youhao3; Lu, Bona1,2; Wu, Hao1,4; Wang, Wei1,2 |
| 刊名 | Powder Technology
 |
| 出版日期 | 2022 |
| 卷号 | 398 |
| 关键词 | Fluidized beds - Fluid catalytic cracking - Fluidization |
| ISSN号 | 325910 |
| DOI | 10.1016/j.powtec.2022.117137 |
| 英文摘要 | The maximizing isoparaffins (MIP) reactor has multiple reaction zones by expanding the diameter of the middle section of the conventional equal-diameter FCC riser to produce high-quality gasoline. This study aimed to probe the flow regime transition and corresponding regulation of such diameter-transformed reactors using multiscale CFD simulations with twelve-lump kinetics. It was found that a choking plateau that appears in a low-velocity, equal-diameter riser was captured at a much higher solid concentration in the new reactor when considering reactions, while the plateau disappears and becomes a slowly ascending slope under cold-model conditions. Using the particle circulating mode instead of the fixed mode gives rise to large fluctuations in solids flow and reaction rate in the first zone, but the formation of fast fluidization in the expanded second zone can help stabilize the flow behaviors and product yield. This finding sheds light on the design and operation of diameter-transformed fluidized beds. 漏 2022 Elsevier B.V. |
| 学科主题 | Computational Fluid Dynamics |
| 项目编号 | This work is financially supported by the National Natural Science Foundation of China under Grant nos. 22078331 , 91834302 and 21625605 , the Transformational Technologies for Clean Engery and Demonstration" |
| 出版者 | Elsevier B.V. |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61234]  |
| 作者单位 | 1.Sino-Danish College, University of Chinese Academy of Sciences, Beijing; 100049, China 2.Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 3.Research Institute of Petroleum Processing, Sinopec, Beijing; 100083, China 4.Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kongens Lyngby; 2800, Denmark |
| 推荐引用方式 GB/T 7714 | Han, Caixia,Xu, Youhao,Lu, Bona,et al. Numerical exploration of the flow regime transition of a novel catalytic cracking reactor and operation mode analysis[J]. Powder Technology,2022,398. |
| APA | Han, Caixia,Xu, Youhao,Lu, Bona,Wu, Hao,&Wang, Wei.(2022).Numerical exploration of the flow regime transition of a novel catalytic cracking reactor and operation mode analysis.Powder Technology,398. |
| MLA | Han, Caixia,et al."Numerical exploration of the flow regime transition of a novel catalytic cracking reactor and operation mode analysis".Powder Technology 398(2022). |
入库方式： OAI收割
来源：过程工程研究所
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