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Speeding up CFD simulation of fluidized bed reactor for MTO by coupling CRE model
Lu, Bona1,2; Luo, Hao1; Li, Hua3; Wang, Wei1; Ye, Mao3; Liu, Zhongmin3; Li, Jinghai1

The methanol to olefins (MTO) process opens an economical and important route to produce light olefins. The design of MTO reactor borrows ideas from the reaction-regeneration configuration of the modern fluid catalytic cracking (FCC) units. However, their hydrodynamic behaviors are quite different in the sense that the fluidized bed for MTO reactions operates in different flow regime from that of FCC, calling for new modeling for scale-up. In addition, the coke deposited on catalysts greatly affects the MTO reaction while its generation is very slow. It normally takes tens of minutes or even hours for catalysts to reach the desired level of coke content. Time-dependent computational fluid dynamics (CFD) simulation of such a long process poses a big challenge to reactive multiphase flow modeling. To speed up it, we try to integrate the classic chemical reaction engineering (CRE) model with CFD. In particular, the continuous stirred tank reactor (CSTR) model is established to estimate the steady state distribution of coke content, which is then set as the initial distribution for CFD simulation to shorten the time to reach the steady state of reactive flows. Comparison with experimental data shows good agreement and also great speed-up ratio compared to traditional CFD simulation. (C) 2016 Elsevier Ltd. All rights reserved.

KeywordCre Cfd Methanol-to-olefins (Mto) Emms Kinetics Fluidized Bed
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS KeywordSolid Riser Flows ; To-olefins Process ; Emms Model ; Methanol ; Hydrodynamics ; Formulation ; Mechanisms ; Boiler ; Efm
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(21106157
WOS IDWOS:000371472200030
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorWang, Wei
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Sate Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Natl Engn Lab MTO, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Lu, Bona,Luo, Hao,Li, Hua,et al. Speeding up CFD simulation of fluidized bed reactor for MTO by coupling CRE model[J]. CHEMICAL ENGINEERING SCIENCE,2016,143(APR):341-350.
APA Lu, Bona.,Luo, Hao.,Li, Hua.,Wang, Wei.,Ye, Mao.,...&Li, Jinghai.(2016).Speeding up CFD simulation of fluidized bed reactor for MTO by coupling CRE model.CHEMICAL ENGINEERING SCIENCE,143(APR),341-350.
MLA Lu, Bona,et al."Speeding up CFD simulation of fluidized bed reactor for MTO by coupling CRE model".CHEMICAL ENGINEERING SCIENCE 143.APR(2016):341-350.
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