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Moghaddam E, Foumeny E, Stankiewicz A, Padding J. Multiscale modelling of wall-to-bed heat transfer in fixed beds with non-spherical pellets: From particle-resolved CFD to pseudo-homogenous models. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116532] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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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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Moghaddam E, Foumeny E, Stankiewicz A, Padding J. Fixed bed reactors of non-spherical pellets: Importance of heterogeneities and inadequacy of azimuthal averaging. CHEMICAL ENGINEERING SCIENCE: X 2019. [DOI: 10.1016/j.cesx.2019.100006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Moghaddam E, Foumeny EA, Stankiewicz AI, Padding JT. Rigid Body Dynamics Algorithm for Modeling Random Packing Structures of Nonspherical and Nonconvex Pellets. Ind Eng Chem Res 2018; 57:14988-15007. [PMID: 30449949 PMCID: PMC6237547 DOI: 10.1021/acs.iecr.8b03915] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/09/2018] [Accepted: 10/11/2018] [Indexed: 11/28/2022]
Abstract
Despite the common use of nonspherical catalyst pellets in chemical engineering applications, the packing structures of such pellets have not been as systematically studied and characterized as spherical packings. We propose a packing algorithm based on rigid body dynamics to simulate packing of nonspherical and possibly nonconvex pellets. The algorithm exerts a hard-body approach to model collision phenomena. The novelty is that the transition between moving and resting particles is controlled by a cutoff on the relative contact velocities, instead of artificially damping linear and angular velocities to stabilize the algorithm. The algorithm is used to synthesize packings of spheres, cylinders, and Raschig rings with tube-to-pellet diameter ratios 3-9.16. The packings are validated in terms of bulk porosity and radial void fraction distribution, finding satisfactory agreement with literature data. Denser packing structures are generated with high restitution coefficients and low friction coefficients. The confining tube walls play an important role, with highly fluctuating bulk porosities in narrow tubes.
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Affiliation(s)
- Elyas
M. Moghaddam
- Process & Energy Department, Delft University of Technology, 2628CB Delft, The Netherlands
| | - Esmail A. Foumeny
- Process & Energy Department, Delft University of Technology, 2628CB Delft, The Netherlands
| | - Andrzej I. Stankiewicz
- Process & Energy Department, Delft University of Technology, 2628CB Delft, The Netherlands
| | - Johan T. Padding
- Process & Energy Department, Delft University of Technology, 2628CB Delft, The Netherlands
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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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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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Partopour B, Dixon AG. Resolved-particle fixed bed CFD with microkinetics for ethylene oxidation. AIChE J 2016. [DOI: 10.1002/aic.15422] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Behnam Partopour
- Dept. of Chemical Engineering; Worcester Polytechnic Institute; Worcester MA 01609
| | - Anthony G. Dixon
- Dept. of Chemical Engineering; Worcester Polytechnic Institute; Worcester MA 01609
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Partopour B, Dixon AG. Reduced Microkinetics Model for Computational Fluid Dynamics (CFD) Simulation of the Fixed-Bed Partial Oxidation of Ethylene. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b00526] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Behnam Partopour
- Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, United States
| | - Anthony G. Dixon
- Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, United States
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Partopour B, Dixon AG. Computationally efficient incorporation of microkinetics into resolved-particle CFD simulations of fixed-bed reactors. Comput Chem Eng 2016. [DOI: 10.1016/j.compchemeng.2016.02.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Computational study of fluid flow and heat transfer in composite packed beds of spheres with low tube to particle diameter ratio. NUCLEAR ENGINEERING AND DESIGN 2016. [DOI: 10.1016/j.nucengdes.2015.10.030] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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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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Zhu YP, Xiao FZ, Luo ZH. A CFD simulation study to evaluate the flow and catalytic hydrogenation of dimethyl oxalate in a packed bed, a two-stage fluidized bed, and a circulating fluidized bed. ASIA-PAC J CHEM ENG 2013. [DOI: 10.1002/apj.1769] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ya-Ping Zhu
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 China
| | - Fang-Zhi Xiao
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 China
| | - Zheng-Hong Luo
- Department of Chemical Engineering; Shanghai Jiao Tong University; Shanghai 200240 China
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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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CFD modeling of gas flow in porous medium and catalytic coupling reaction from carbon monoxide to diethyl oxalate in fixed-bed reactors. Chem Eng Sci 2011. [DOI: 10.1016/j.ces.2011.08.031] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cheng SH, Chang H, Chen YH, Chen HJ, Chao YK, Liao YH. Computational Fluid Dynamics-Based Multiobjective Optimization for Catalyst Design. Ind Eng Chem Res 2010. [DOI: 10.1021/ie1001839] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shueh-Hen Cheng
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, 40704, Taiwan, Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Taipei County, 25137, Taiwan
| | - Hsuan Chang
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, 40704, Taiwan, Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Taipei County, 25137, Taiwan
| | - Yih-Hang Chen
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, 40704, Taiwan, Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Taipei County, 25137, Taiwan
| | - Hsi-Jen Chen
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, 40704, Taiwan, Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Taipei County, 25137, Taiwan
| | - Yung-Kang Chao
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, 40704, Taiwan, Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Taipei County, 25137, Taiwan
| | - Yu-Hsiang Liao
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, 40704, Taiwan, Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Taipei County, 25137, Taiwan
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