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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
发表期刊CHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
卷号171期号:NOV页码:244-255
摘要

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.

关键词Emms Scale-up Fluidized Bed Simulation Mto Meso-scale
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.ces.2017.05.007
收录类别SCI
语种英语
关键词[WOS]SOLID RISER FLOWS ; CFD SIMULATION ; MULTISCALE CFD ; EMMS MODEL ; MTO
WOS研究方向Engineering
WOS类目Engineering, Chemical
项目资助者National Natural Science Foundation of China(21576263 ; Youth Innovation Promotion Association CAS(2015033) ; 21625605 ; 91334204)
WOS记录号WOS:000409285000019
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23211
专题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.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
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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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