Structural parameter optimization for novel internal-loop iron-carbon micro-electrolysis reactors using computational fluid dynamics

doi:10.1016/j.cjche.2018.08.001

中国化学工程学报 ›› 2019, Vol. 27 ›› Issue (4): 737-744.DOI: 10.1016/j.cjche.2018.08.001

• Fluid Dynamics and Transport Phenomena • 下一篇

Structural parameter optimization for novel internal-loop iron-carbon micro-electrolysis reactors using computational fluid dynamics

Lei Zhang¹, Mengyu Wu¹, Yanhe Han¹, Meili Liu¹, Junfeng Niu²

1 Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;
2 Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan 523808, China

收稿日期:2018-05-04 修回日期:2018-07-18 出版日期:2019-04-28 发布日期:2019-06-14
通讯作者: Yanhe Han
基金资助:
Supported by the National Natural Science Foundation of China (21677018) and Jointly Projects of Beijing Natural Science Foundation and Beijing Municipal Education Commission (KZ201810017024).

Structural parameter optimization for novel internal-loop iron-carbon micro-electrolysis reactors using computational fluid dynamics

Lei Zhang¹, Mengyu Wu¹, Yanhe Han¹, Meili Liu¹, Junfeng Niu²

1 Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China;
2 Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan 523808, China

Received:2018-05-04 Revised:2018-07-18 Online:2019-04-28 Published:2019-06-14
Contact: Yanhe Han
Supported by:
Supported by the National Natural Science Foundation of China (21677018) and Jointly Projects of Beijing Natural Science Foundation and Beijing Municipal Education Commission (KZ201810017024).

摘要/Abstract

摘要： It is generally recognized that internal-loop reactors are well-developed mass and heat-transfer multiphase flow reactors. However, the internal flow field in the internal-loop reactor is influenced by the structure parameter of the reactor, which has a great effect on the reaction efficiency. In this study, the computational fluid dynamics simulation method was used to determine the influence of reactor structure on flow field, and a volume-offluid model was employed to simulate the gas-liquid, two-phase flow of the internal-loop micro-electrolysis reactor. Hydrodynamic factors were optimized when the height-to-diameter ratio was 4:1, diameter ratio was 9:1, draft-tube axial height was 90 mm. Three-dimensional simulations for the water distributor were carried out, and the results suggested that the optimal conditions are as follows:the number of water distribution pipes was four, and an inhomogeneous water distribution was used. According to the results of the simulation, the suitable structure can be used to achieve good fluid mechanical properties, such as the good liquid circulation velocity and gas holdup, which provides a good theoretical foundation for the application of the reactor.

关键词: Iron-carbon micro-electrolysis, Internal cycling, Computational fluid dynamics, Structure design

Abstract: It is generally recognized that internal-loop reactors are well-developed mass and heat-transfer multiphase flow reactors. However, the internal flow field in the internal-loop reactor is influenced by the structure parameter of the reactor, which has a great effect on the reaction efficiency. In this study, the computational fluid dynamics simulation method was used to determine the influence of reactor structure on flow field, and a volume-offluid model was employed to simulate the gas-liquid, two-phase flow of the internal-loop micro-electrolysis reactor. Hydrodynamic factors were optimized when the height-to-diameter ratio was 4:1, diameter ratio was 9:1, draft-tube axial height was 90 mm. Three-dimensional simulations for the water distributor were carried out, and the results suggested that the optimal conditions are as follows:the number of water distribution pipes was four, and an inhomogeneous water distribution was used. According to the results of the simulation, the suitable structure can be used to achieve good fluid mechanical properties, such as the good liquid circulation velocity and gas holdup, which provides a good theoretical foundation for the application of the reactor.

Key words: Iron-carbon micro-electrolysis, Internal cycling, Computational fluid dynamics, Structure design

Lei Zhang, Mengyu Wu, Yanhe Han, Meili Liu, Junfeng Niu. Structural parameter optimization for novel internal-loop iron-carbon micro-electrolysis reactors using computational fluid dynamics[J]. 中国化学工程学报, 2019, 27(4): 737-744.

参考文献

[1] Q. Zhu, S. Guo, C. Guo, D. Dai, X. Jiao, T. Ma, J. Chen, Stability of Fe-C microelectrolysis and biological process in treating ultra-high concentration organic wastewater, Chem. Eng. J. 255(2014) 535-540.
[2] B. Lai, Y.X. Zhou, P. Yang, J. Yang, J. Wang, Degradation of 3,3'-iminobispropanenitrile in aqueous solution by Fe⁰/GAC micro-electrolysis system, Chemosphere 90(4) (2013) 1470-1477.
[3] X.Y. Zhu, X.J. Chen, Z.M. Yang, Y. Liu, Z.Y. Zhou, Z.Q. Ren, Investigating the influences of electrode material property on degradation behavior of organic wastewaters by iron-carbon micro-electrolysis, Chem. Eng. J. 338(2017) 46-54.
[4] S. Zhang, D. Wang, L. Zhou, X.W. Zhang, P.P. Fan, X. Quan, Intensified internal electrolysis for degradation of methylene blue as model compound induced by a novel hybrid material:Multi-walled carbon nanotubes immobilized on zerovalent iron plates (Fe⁰-CNTs), Chem. Eng. J. 217(2) (2013) 99-107.
[5] Y.H. Han, H. Li, M.L. Liu, Y.M. Sang, C.Z. Liang, J.Q. Chen, Purification treatment of dyes wastewater with a novel micro-electrolysis reactor, Sep. Purif. Technol. 170(2016) 241-247.
[6] X.H. Guan, X.H. Xu, M. Lu, H.F. Li, Pretreatment of oil shale retort wastewater by acidification and ferric-carbon micro-electrolysis, Energy Procedia 17(1) (2012) 1655-1661.
[7] R. Xie, M. Wu, G. Qu, P. Ning, Y. Cai, P. Lv, Treatment of coking wastewater by a novel electric assisted micro-electrolysis filter, J. Environ. Sci. 66(2018) 165-172.
[8] M. Räsänen, T. Eerikäinen, H. Ojamo, Characterization and hydrodynamics of a novel helix airlift reactor, Chem. Eng. Process. Process Intensif. 108(2016) 44-57.
[9] K. Wadaugsorn, S. Limtrakul, T. Vatanatham, P.A. Ramachandran, Hydrodynamic behaviors and mixing characteristics in an internal loop airlift reactor based on CFD simulation, Chem. Eng. Res. Des. 113(2016) 125-139.
[10] A. Couvert, M. Roustan, P. Chatellier, Two-phase hydrodynamic study of a rectangular air-lift loop reactor with an internal baffle, Chem. Eng. Sci. 54(21) (1999) 5245-5252.
[11] C. Freitas, M. Fialová, J. Zahradnik, J.A. Teixeira, Hydrodynamic model for threephase internal- and external-loop airlift reactors, Chem. Eng. Sci. 54(21) (1999) 5253-5258.
[12] J.C. Merchuk, I. Berzin, Distribution of energy dissipation in airlift reactors, Chem. Eng. Sci. 50(14) (1995) 2225-2233.
[13] T. Yang, S.J. Geng, C. Yang, Q.S. Huang, Hydrodynamics and mass transfer in an internal airlift slurry reactor for process intensification, Chem. Eng. Sci. 184(2018) 126-133.
[14] T.R. Cao, W.P. Zhang, J.C. Cheng, C. Yang, Comparative experimental study on reactive crystallization of Ni(OH)2 in an airlift-loop reactor and a stirred reactor, Chin. J. Chem. Eng. 26(1) (2018) 196-206.
[15] R. Davarnejad, E. Bagheripoor, A. Sahraei, CFD simulation of scale influence on the hydrodynamics of an internal loop airlift reactor, Engineering 04(10) (2012) 668-674.
[16] L.M. Chen, Z.S. Bai, CFD simulation of the hydrodynamics in an industrial scale cyclohexane oxidation airlift loop reactor, Chem. Eng. Res. Des. 119(2017) 33-46.
[17] Y.Y. Xu, L.J. Luo, J.Q. Yuan, CFD simulations to portray the bubble distribution and the hydrodynamics in an annulus sparged air-lift bioreactor, Can. J. Chem. Eng. 89(2) (2011) 360-368.
[18] A. Volk, U. Ghia, C. Stoltz, Effect of grid type and refinement method on CFD-DEM solution trend with grid size, Powder Technol. 311(2017) 137-146.
[19] H. Pineda, J. Biazussi, F. López, B. Oliveira, R.D.M. Carvalho, A.C. Bannwart, N. Ratkovich, Phase distribution analysis in an Electrical Submersible Pump (ESP) inlet handling water-air two-phase flow using Computational Fluid Dynamics (CFD), J. Pet. Sci. Eng. 139(2016) 49-61.
[20] B.E. Launder, D.B. Spalding, Mathematical Models of Turbulence, Von Karman Institute for Fluid Dynamics, 1972.
[21] ANSYS Inc., ANSYS FLUENT 18.0 User's Guide, 2017.
[22] W. Du, J.Z. Zhang, P.P. Lu, J. Xu, W.S. Wei, G.X. He, L.F. Zhang, Advanced understanding of local wetting behaviour in gas-liquid-solid packed beds using CFD with a volume of fluid (VOF) method, Chem. Eng. Sci. 170(2017) 378-392.
[23] J.G. Li, B.L. Yang, CFD simulation of bubbling fluidized beds using a local-structuredependent drag model, Chem. Eng. J. 329(2017) 100-115.
[24] R. Liu, Y. Liu, C.Z. Liu, Development of an efficient CFD-simulation method to optimize the structure parameters of an airlift sonobioreactor, Chem. Eng. Res. Des. 91(2) (2013) 211-220.
[25] L.J. Luo, F.N. Liu, Y.Y. Xu, J.Q. Yuan, Hydrodynamics and mass transfer characteristics in an internal loop airlift reactor with different spargers, Chem. Eng. J. 175(1) (2011) 494-504.

Structural parameter optimization for novel internal-loop iron-carbon micro-electrolysis reactors using computational fluid dynamics

Structural parameter optimization for novel internal-loop iron-carbon micro-electrolysis reactors using computational fluid dynamics

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