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Effects of internals on fluid dynamics and reactions in pilot-scale slurry bubble column reactors: A CFD study for Fischer-Tropsch synthesis
An, Min1,2; Guan, Xiaoping1; Yang, Ning1; Bu, Yifeng3; Xu, Ming3; Men, Zhuowu3
2018-10-01
Source PublicationCHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
ISSN0255-2701
Volume132Pages:194-207
Abstract

Effects of internals on the fluid dynamics and reaction performance in a pilot-scale slurry bubble column reactor (dc = 0.29 m, h = 4 m) for Fischer-Tropsch synthesis were investigated by CFD simulation in two stages: the first stage with only fluid flow and the second stage coupled with flow, mass transfer and reaction. At the same superficial gas velocity based on free area of column cross-section, the effects of internals on hydrodynamics, such as gas holdup, slurry large-scale recirculation and turbulent viscosity, were analyzed in the first stage. Considering the uncertainty of available mass transfer models, these models were evaluated first. These models differ in magnitude of volumetric mass transfer coefficient and relative mass transfer capacity of H-2 to CO. The simulations indicated that, for the slurry column reactor simulated in this paper, the reaction performances simulated with different mass transfer models are similar, and the reactor is in the reaction-limited regime at the relatively low solid holdup condition. The presence of internals decreases gas holdup and reactant concentrations in the slurry phase but increases the mass transfer and reaction rates. Moreover, the syngas conversion and reactor productivity per unit volume are obviously enhanced with the increase of the number of internals.

KeywordFischer-tropsch Synthesis Cfd Slurry Bubble Column Reactor Internals Hydrodynamics Multiphase Reaction
DOI10.1016/j.cep.2018.09.004
Language英语
WOS KeywordMass-transfer ; Gas Holdup ; Simulation ; Liquid ; Models ; Phase ; Flow ; Turbulence ; Forces ; Heat
Funding ProjectNational Key R&D Program of China[2017YFB0602500] ; Beijing Natural Science Foundation[2184125] ; National Natural Science Foundation of China[91634203] ; National Natural Science Foundation of China[21808222]
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationNational Key R&D Program of China ; Beijing Natural Science Foundation ; National Natural Science Foundation of China
WOS IDWOS:000447481100022
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26310
Collection中国科学院过程工程研究所
Corresponding AuthorYang, Ning
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl Inst Clean & Low Carbon Energy NICE, Beijing, Peoples R China
Recommended Citation
GB/T 7714
An, Min,Guan, Xiaoping,Yang, Ning,et al. Effects of internals on fluid dynamics and reactions in pilot-scale slurry bubble column reactors: A CFD study for Fischer-Tropsch synthesis[J]. CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION,2018,132:194-207.
APA An, Min,Guan, Xiaoping,Yang, Ning,Bu, Yifeng,Xu, Ming,&Men, Zhuowu.(2018).Effects of internals on fluid dynamics and reactions in pilot-scale slurry bubble column reactors: A CFD study for Fischer-Tropsch synthesis.CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION,132,194-207.
MLA An, Min,et al."Effects of internals on fluid dynamics and reactions in pilot-scale slurry bubble column reactors: A CFD study for Fischer-Tropsch synthesis".CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION 132(2018):194-207.
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