CAS OpenIR
Numerical exploration of hydrodynamic features in a methanol-to-olefins fluidized bed reactor with two parallel reaction zones
Zhang, Chunhua1,2; Wang, Fenfen1; Lu, Bona2,3; Wang, Wei2,3; Liu, Mengxi1; Lu, Chunxi1
2020-07-15
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume372Pages:336-350
AbstractA novel methanol-to-olelins (MTO) reactor in which two parallel reaction zones were created by introducing a draft tube to a column bed was numerically investigated using a combination of multi-fluid model and two types of EMMS drags, in order to explore the favorable hydrodynamics. The further numerical comparison of the novel reactor and a conventional reactor found that the introduction of a draft tube helps increase the gas velocity substantially, building an approximate plug flow in the center and concurrent downward flow in the annulus. The gas-solid contact time and solids backmixing in the draft tube were thus greatly reduced, being favorable to MTO reactions, while the gas and solids backmixing in the annulus was enhanced. Besides, severe gas bypassing from the annulus to the draft tube was detected. A gas tracer method was then adopted to quantify the gas bypassing and internal gas circulation for further optimization. (C) 2020 Elsevier B.V. All rights reserved.
KeywordMultiple reaction zones Internal circulation Gas bypassing MTO CFD EMMS
DOI10.1016/j.powtec.2020.06.010
Language英语
WOS KeywordGAS-SOLID FLOWS ; CFD SIMULATION ; MIXING CHARACTERISTICS ; FILTERED MODEL ; CIRCULATION ; HYDROCARBONS ; DRAG ; CONVERSION ; MECHANISM ; BEHAVIOR
Funding ProjectNational Natural Science Foundation of China[21625605] ; National Natural Science Foundation of China[91834302] ; "Transformational Technologies for Clean Engery and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21030700] ; Open Research Fund of State Key Laboratory of Multiphase Complex Systems[Y925131119]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; "Transformational Technologies for Clean Engery and Demonstration", Strategic Priority Research Program of the Chinese Academy of Sciences ; Open Research Fund of State Key Laboratory of Multiphase Complex Systems
WOS IDWOS:000558906000032
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41675
Collection中国科学院过程工程研究所
Corresponding AuthorLu, Bona; Liu, Mengxi
Affiliation1.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Stale Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Chunhua,Wang, Fenfen,Lu, Bona,et al. Numerical exploration of hydrodynamic features in a methanol-to-olefins fluidized bed reactor with two parallel reaction zones[J]. POWDER TECHNOLOGY,2020,372:336-350.
APA Zhang, Chunhua,Wang, Fenfen,Lu, Bona,Wang, Wei,Liu, Mengxi,&Lu, Chunxi.(2020).Numerical exploration of hydrodynamic features in a methanol-to-olefins fluidized bed reactor with two parallel reaction zones.POWDER TECHNOLOGY,372,336-350.
MLA Zhang, Chunhua,et al."Numerical exploration of hydrodynamic features in a methanol-to-olefins fluidized bed reactor with two parallel reaction zones".POWDER TECHNOLOGY 372(2020):336-350.
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