Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors | |
Lu, Bona1,2; Zhang, Jingyuan1,2; Luo, Hao2,3; Wang, Wei1,2; Li, Hua4; Ye, Mao4; Liu, Zhongmin4; Li, Jinghai1 | |
2017-11-02 | |
Source Publication | CHEMICAL ENGINEERING SCIENCE
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ISSN | 0009-2509 |
Volume | 171Issue:NOVPages:244-255 |
Abstract | Scale-up of fluidized bed reactors has long been regarded as a big challenge in chemical reaction engineering. While traditional scaling theories are mostly based on hydrodynamics similarity, computational fluid dynamics (CFD) aided approach allows direct coupling between hydrodynamics and reaction factors and is expected to speed up the experiment-based scale-up process with lower cost. In this study, we aim to investigate the scale-up effects through simulations of a series of methanol-to-olefins (MTO) reactors of different sizes. The two-fluid model and energy-minimization multi-scale (EMMS)-based drag models, are combined in simulations. The fluidization characteristics in terms of flow structures, velocity distribution, mass fractions of gaseous product and coke distribution are presented against available experimental data for different-sized reactors. It is found that typical hydrodynamic features can be reasonably predicted, while the prediction of reaction behavior shows growing discrepancy with increasing reactor size. Possible reasons are discussed in the last section along with future work presented for scale-up studies. (C) 2017 Elsevier Ltd. All rights reserved. |
Keyword | Emms Scale-up Fluidized Bed Simulation Mto Meso-scale |
Subtype | Article |
WOS Headings | Science & Technology ; Technology |
DOI | 10.1016/j.ces.2017.05.007 |
Indexed By | SCI |
Language | 英语 |
WOS Keyword | SOLID RISER FLOWS ; CFD SIMULATION ; MULTISCALE CFD ; EMMS MODEL ; MTO |
WOS Research Area | Engineering |
WOS Subject | Engineering, Chemical |
Funding Organization | National Natural Science Foundation of China(21576263 ; Youth Innovation Promotion Association CAS(2015033) ; 21625605 ; 91334204) |
WOS ID | WOS:000409285000019 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.ipe.ac.cn/handle/122111/23211 |
Collection | 多相复杂系统国家重点实验室 |
Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sinodanish Coll, Beijing 100049, Peoples R China 3.Tech Univ Denmark, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark 4.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Lab MTO, Dalian 116023, Peoples R China |
Recommended Citation GB/T 7714 | Lu, Bona,Zhang, Jingyuan,Luo, Hao,et al. Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors[J]. CHEMICAL ENGINEERING SCIENCE,2017,171(NOV):244-255. |
APA | Lu, Bona.,Zhang, Jingyuan.,Luo, Hao.,Wang, Wei.,Li, Hua.,...&Li, Jinghai.(2017).Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors.CHEMICAL ENGINEERING SCIENCE,171(NOV),244-255. |
MLA | Lu, Bona,et al."Numerical simulation of scale-up effects of methanol-to-olefins fluidized bed reactors".CHEMICAL ENGINEERING SCIENCE 171.NOV(2017):244-255. |
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Numerical simulation(3196KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text |
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