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Iniyatova G, Yermukhambetova A, Boribayeva A, Golman B. Approximate Packing of Binary Mixtures of Cylindrical Particles. MICROMACHINES 2022; 14:36. [PMID: 36677097 PMCID: PMC9862688 DOI: 10.3390/mi14010036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/14/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Particle packing plays an essential role in industry and chemical engineering. In this work, the discrete element method is used to generate the cylindrical particles and densify the binary cylindrical particle mixtures under the poured packing conditions. The influences of the aspect ratio and volume fraction of particles on the packing structure are measured by planar packing fraction. The Voronoi tessellation is used to quantify the porous structure of packing. The cumulative distribution functions of local packing fractions and the probability distributions of the reduced free volume of Voronoi cells are calculated to describe the local packing characteristics of binary mixtures with different volume fractions. As a result, it is observed that particles with larger aspect ratios in the binary mixture tend to orient randomly, and the particles with smaller aspect ratios have a preferentially horizontal orientation. Results also show that the less dense packings are obtained for mixtures with particles of higher aspect ratios and mixtures with a larger fraction of elongated cylindrical particles.
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CFD modelling of the structured cartridges with glass-fiber catalysts. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.12.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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3
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Moghaddam E, Foumeny E, Stankiewicz A, Padding J. Hydrodynamics of narrow-tube fixed bed reactors filled with Raschig rings. CHEMICAL ENGINEERING SCIENCE: X 2020. [DOI: 10.1016/j.cesx.2020.100057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Qian Q, An X, Zhao H, Dong K, Yang X. Numerical investigations on random close packings of cylindrical particles with different aspect ratios. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2018.11.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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G. M. K, Buwa VV. Particle-resolved simulations of methane steam reforming in multilayered packed beds. AIChE J 2018. [DOI: 10.1002/aic.16386] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Karthik G. M.
- Department of Chemical Engineering; Indian Institute of Technology Delhi; New Delhi, 110016 India
| | - Vivek V. Buwa
- Department of Chemical Engineering; Indian Institute of Technology Delhi; New Delhi, 110016 India
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Advances in fixed-bed reactor modeling using particle-resolved computational fluid dynamics (CFD). REV CHEM ENG 2018. [DOI: 10.1515/revce-2017-0059] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In 2006, Dixon et al. published the comprehensive review article entitled “Packed tubular reactor modeling and catalyst design using computational fluid dynamics.” More than one decade later, many researchers have contributed to novel insights, as well as a deeper understanding of the topic. Likewise, complexity has grown and new issues have arisen, for example, by coupling microkinetics with computational fluid dynamics (CFD). In this review article, the latest advances are summarized in the field of modeling fixed-bed reactors with particle-resolved CFD, i.e. a geometric resolution of every pellet in the bed. The current challenges of the detailed modeling are described, i.e. packing generation, meshing, and solving with an emphasis on coupling microkinetics with CFD. Applications of this detailed approach are discussed, i.e. fluid dynamics and pressure drop, dispersion, heat and mass transfer, as well as heterogeneous catalytic systems. Finally, conclusions and future prospects are presented.
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Qian Q, Wang L, An X, Wu Y, Wang J, Zhao H, Yang X. DEM simulation on the vibrated packing densification of mono-sized equilateral cylindrical particles. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.10.050] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hou B, Ye R, Huang Y, Wang X, Zhang T. A CFD model for predicting the heat transfer in the industrial scale packed bed. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2017.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Oechsler BF, Dutra JCS, Bittencourt RC, Pinto JC. Simulation and Control of Steam Reforming of Natural Gas—Reactor Temperature Control Using Residual Gas. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03665] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bruno F. Oechsler
- Programa
de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária CP 68502, Rio de Janeiro, RJ 21941-972, Brazil
| | - Julio C. S. Dutra
- Programa
de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária CP 68502, Rio de Janeiro, RJ 21941-972, Brazil
| | - Roberto C.P. Bittencourt
- Petróleo
Brasileiro, S.A., Petrobrás, Ilha do Fundão, Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil
| | - José C. Pinto
- Programa
de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária CP 68502, Rio de Janeiro, RJ 21941-972, Brazil
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Karthik GM, Buwa VV. Effect of particle shape on fluid flow and heat transfer for methane steam reforming reactions in a packed bed. AIChE J 2016. [DOI: 10.1002/aic.15542] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- G. M. Karthik
- Dept. of Chemical Engineering; Indian Institute of Technology Delhi; New Delhi 110016 India
| | - Vivek V. Buwa
- Dept. of Chemical Engineering; Indian Institute of Technology Delhi; New Delhi 110016 India
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Kolaczkowski ST, Awdry S, Smith T, Thomas D, Torkuhl L, Kolvenbach R. Potential for metal foams to act as structured catalyst supports in fixed-bed reactors. Catal Today 2016. [DOI: 10.1016/j.cattod.2016.03.047] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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A CFD model for gas uniform distribution in turbulent flow for the production of titanium pigment in chloride process. Chin J Chem Eng 2016. [DOI: 10.1016/j.cjche.2016.04.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hou B, Huang Y, Wang X, Yang X, Duan H, Zhang T. Optimization and simulation of the Sabatier reaction process in a packed bed. AIChE J 2016. [DOI: 10.1002/aic.15245] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Baolin Hou
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Yanqiang Huang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Xiaodong Wang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Xiaofeng Yang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Hongming Duan
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 P. R. China
| | - Tao Zhang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics, Chinese Academy of Sciences; Dalian 116023 P. R. China
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Nonuniform Oxidation on the Surface of Fuel Element in HTR. SCIENCE AND TECHNOLOGY OF NUCLEAR INSTALLATIONS 2016. [DOI: 10.1155/2016/7485602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The graphite oxidation of fuel element has obtained high attention in air ingress accident analysis of high temperature gas-cooled reactor (HTR). The shape function, defined as the relationship between the maximum and the average of the oxidation, is an important factor to estimate the consequence of the accident. There are no detailed studies on the shape function currently except two experiments several decades ago. With the development of computer technology, CFD method is used in the numerical experiment about graphite oxidation in pebble bed of HTR in this paper. Structured packed beds are used in the calculation instead of random packed beds. The result shows the nonuniform distribution of oxidation on the sphere surface and the shape function in the condition of air ingress accident. Furthermore, the sensitive factors of shape function, such as temperature and Re number, are discussed in detail and the relationship between the shape function and sensitive factors is explained. According to the results in this paper, the shape function ranges from 1.05 to 4.7 under the condition of temperature varying from 600°C to 1200°C and Re varying from 16 to 1600.
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Bu S, Yang J, Zhou M, Li S, Wang Q, Guo Z. On contact point modifications for forced convective heat transfer analysis in a structured packed bed of spheres. NUCLEAR ENGINEERING AND DESIGN 2014. [DOI: 10.1016/j.nucengdes.2014.01.001] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Spatial Resolution of Species and Temperature Profiles in Catalytic Reactors. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/b978-0-12-800422-7.00002-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Dixon AG, Boudreau J, Rocheleau A, Troupel A, Taskin ME, Nijemeisland M, Stitt EH. Flow, Transport, and Reaction Interactions in Shaped Cylindrical Particles for Steam Methane Reforming. Ind Eng Chem Res 2012. [DOI: 10.1021/ie202694m] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anthony G. Dixon
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road,
Worcester, Massachusetts 01609-2280, United States
| | - Justin Boudreau
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road,
Worcester, Massachusetts 01609-2280, United States
| | - Anne Rocheleau
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road,
Worcester, Massachusetts 01609-2280, United States
| | - Alexandre Troupel
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road,
Worcester, Massachusetts 01609-2280, United States
| | - M. Ertan Taskin
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road,
Worcester, Massachusetts 01609-2280, United States
| | - Michiel Nijemeisland
- Johnson Matthey, P.O. Box 1, Belasis Avenue, Billingham, Cleveland TS23 1LB, U.K
| | - E. Hugh Stitt
- Johnson Matthey, P.O. Box 1, Belasis Avenue, Billingham, Cleveland TS23 1LB, U.K
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Zhao J, Li S, Lu P, Meng L, Li T, Zhu H. Shape influences on the packing density of frustums. POWDER TECHNOL 2011. [DOI: 10.1016/j.powtec.2011.09.013] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Alberton AL, Schwaab M, Fontes CE, Bittencourt RC, Pinto JC. Hybrid Modeling of Methane Reformers. 1. A Metamodel for the Effectiveness Factor of a Catalyst Pellet with Complex Geometry. Ind Eng Chem Res 2009. [DOI: 10.1021/ie801830q] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- André Luis Alberton
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária - CP 68502, Rio de Janeiro, RJ, 21941-972, Brazil, Engineering Simulation and Scientific Software (ESSS), Rua Lauro Müller, 116, 1404, Rio de Janeiro, RJ, 22290-160, Brazil, and Petróleo Brasileiro, S.A., Petrobrás, Ilha do Fundão, Cidade Universitária, Rio de Janeiro, RJ, 21941-598, Brazil
| | - Marcio Schwaab
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária - CP 68502, Rio de Janeiro, RJ, 21941-972, Brazil, Engineering Simulation and Scientific Software (ESSS), Rua Lauro Müller, 116, 1404, Rio de Janeiro, RJ, 22290-160, Brazil, and Petróleo Brasileiro, S.A., Petrobrás, Ilha do Fundão, Cidade Universitária, Rio de Janeiro, RJ, 21941-598, Brazil
| | - Carlos Eduardo Fontes
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária - CP 68502, Rio de Janeiro, RJ, 21941-972, Brazil, Engineering Simulation and Scientific Software (ESSS), Rua Lauro Müller, 116, 1404, Rio de Janeiro, RJ, 22290-160, Brazil, and Petróleo Brasileiro, S.A., Petrobrás, Ilha do Fundão, Cidade Universitária, Rio de Janeiro, RJ, 21941-598, Brazil
| | - Roberto Carlos Bittencourt
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária - CP 68502, Rio de Janeiro, RJ, 21941-972, Brazil, Engineering Simulation and Scientific Software (ESSS), Rua Lauro Müller, 116, 1404, Rio de Janeiro, RJ, 22290-160, Brazil, and Petróleo Brasileiro, S.A., Petrobrás, Ilha do Fundão, Cidade Universitária, Rio de Janeiro, RJ, 21941-598, Brazil
| | - José Carlos Pinto
- Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária - CP 68502, Rio de Janeiro, RJ, 21941-972, Brazil, Engineering Simulation and Scientific Software (ESSS), Rua Lauro Müller, 116, 1404, Rio de Janeiro, RJ, 22290-160, Brazil, and Petróleo Brasileiro, S.A., Petrobrás, Ilha do Fundão, Cidade Universitária, Rio de Janeiro, RJ, 21941-598, Brazil
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Taskin ME, Dixon AG, Nijemeisland M, Stitt EH. CFD Study of the Influence of Catalyst Particle Design on Steam Reforming Reaction Heat Effects in Narrow Packed Tubes. Ind Eng Chem Res 2008. [DOI: 10.1021/ie800315d] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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