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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
Source PublicationCHEMICAL ENGINEERING SCIENCE
ISSN0009-2509
Volume171Issue: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.

KeywordEmms Scale-up Fluidized Bed Simulation Mto Meso-scale
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.ces.2017.05.007
Indexed BySCI
Language英语
WOS KeywordSOLID RISER FLOWS ; CFD SIMULATION ; MULTISCALE CFD ; EMMS MODEL ; MTO
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(21576263 ; Youth Innovation Promotion Association CAS(2015033) ; 21625605 ; 91334204)
WOS IDWOS:000409285000019
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23211
Collection多相复杂系统国家重点实验室
Affiliation1.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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