Experimental study of power consumption, local characteristics distributions and homogenization energy in gas–liquid stirred tank reactors

doi:10.1016/j.cjche.2018.10.011

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (2): 278-285.DOI: 10.1016/j.cjche.2018.10.011

• Fluid Dynamics and Transport Phenomena • 上一篇下一篇

Experimental study of power consumption, local characteristics distributions and homogenization energy in gas–liquid stirred tank reactors

Facheng Qiu^1,3, Zuohua Liu¹, Renlong Liu¹, Xuejun Quan³, Changyuan Tao¹, Yundong Wang²

1 School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China;
2 Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;
3 School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China

收稿日期:2018-08-30 修回日期:2018-09-28 出版日期:2019-02-28 发布日期:2019-03-18
通讯作者: Zuohua Liu, Renlong Liu
基金资助:
Supported by the National Natural Science Foundation of China (21576033, 21636004), Central University of Basic Scientific Research Special Project (106112017CDJQJ228808), Chongqing Special Social Undertakings and People's Livelihood Security Science and Technology Innovation (cstc2017shmsA90016), National Key Research and Development Project (2017YFB0603105), and National Sci-Tech Support Plan (2015BAB17B01)

Experimental study of power consumption, local characteristics distributions and homogenization energy in gas–liquid stirred tank reactors

Facheng Qiu^1,3, Zuohua Liu¹, Renlong Liu¹, Xuejun Quan³, Changyuan Tao¹, Yundong Wang²

1 School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China;
2 Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;
3 School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China

Received:2018-08-30 Revised:2018-09-28 Online:2019-02-28 Published:2019-03-18
Contact: Zuohua Liu, Renlong Liu
Supported by:
Supported by the National Natural Science Foundation of China (21576033, 21636004), Central University of Basic Scientific Research Special Project (106112017CDJQJ228808), Chongqing Special Social Undertakings and People's Livelihood Security Science and Technology Innovation (cstc2017shmsA90016), National Key Research and Development Project (2017YFB0603105), and National Sci-Tech Support Plan (2015BAB17B01)

摘要/Abstract

摘要： In this paper, the power consumption, the vertical local void fraction and the local gas-liquid interfacial area are investigated in the aerated stirred tank reactors (STRs) equipped with a rigid-flexible impeller. Meanwhile, the regressive correlation based on power consumption and interfacial area is proposed. Then a novel homogenization energy (HE=RSDPtm) expression based on power consumption and local interfacial area is redefined and used to indicate the mixing efficiency. The optimal operating mode is selected based on the change of the HE value. This paper can provide research ideas for structural optimization of stirred reactors.

关键词: Stirred tank, Gas&ndash, liquid two-phase, Power consumption, Local characteristics, Homogenization energy

Abstract: In this paper, the power consumption, the vertical local void fraction and the local gas-liquid interfacial area are investigated in the aerated stirred tank reactors (STRs) equipped with a rigid-flexible impeller. Meanwhile, the regressive correlation based on power consumption and interfacial area is proposed. Then a novel homogenization energy (HE=RSDPtm) expression based on power consumption and local interfacial area is redefined and used to indicate the mixing efficiency. The optimal operating mode is selected based on the change of the HE value. This paper can provide research ideas for structural optimization of stirred reactors.

Key words: Stirred tank, Gas&ndash, liquid two-phase, Power consumption, Local characteristics, Homogenization energy

Facheng Qiu, Zuohua Liu, Renlong Liu, Xuejun Quan, Changyuan Tao, Yundong Wang. Experimental study of power consumption, local characteristics distributions and homogenization energy in gas–liquid stirred tank reactors[J]. Chinese Journal of Chemical Engineering, 2019, 27(2): 278-285.

参考文献

[1] Y. Zhang, C. Yang, Z.S. Mao, Large eddy simulation of liquid flow in a stirred tank with improved inner-outer iterative algorithm, Chin. J. Chem. Eng. 14(2006) 321-329.

[2] A. Paglianti, S. Pintus, M. Giona, Time-series analysis approach for the identification of flooding/loading transition in gas-liquid stirred tank reactors, Chem. Eng. J. 55(2000) 5793-5802.

[3] C. Tan, J. Zhao, F. Dong, Gas-water two-phase flow characterization with electrical resistance tomography and multivariate multiscale entropy analysis, ISA Trans. 55(2014) 241-249.

[4] S. Ghosh, D.K. Pratihar, B. Maiti, P.K. Das, Identification of flow regimes using conductivity probe signals and neural networks for counter-current gas-liquid twophase flow, Chem. Eng. Sci. 84(2012) 417-436.

[5] Q. Zhang, Y. Yong, Z.S. Mao, C. Yang, C. Zhao, Experimental determination and numerical simulation of mixing time in a gas-liquid stirred tank, Chem. Eng. Sci. 64(2009) 2926-2933.

[6] F. Scargiali, R. Russo, F. Grisafi, A. Brucato, Mass transfer and hydrodynamic characteristics of a high aspect ratio self-ingesting reactor for gas-liquid operations, Chem. Eng. Sci. 62(2007) 1376-1387.

[7] L.F.C. Jeanmeure, T. Dyakowski, W.B.J. Zimmerman, W. Clark, Direct flow-pattern identification using electrical capacitance tomography, Exp. Therm. Fluid Sci. 26(2002) 763-773.

[8] H. Ji, J. Long, Y. Fu, Z. Huang, B. Wang, H. Li, Flow pattern identification based on EMD and LS-SVM for gas-liquid two-phase flow in a minichannel, IEEE Trans. Instrum. Meas. 60(2011) 1917-1924.

[9] G.B. Tatterson, Fluid Mixing and Gas Dispersion in Agitated Tanks, McGraw-Hill, New York, 1991.

[10] N. Dohi, T. Takahashi, K. Minekawa, Y. Kawase, Power consumption and solid suspension performance of large-scale impellers in gas-liquid-solid three-phase stirred tank reactors, Chem. Eng. J. 97(2004) 103-114.

[11] M. Taghavi, R. Zadghaffari, J. Moghaddas, Y. Moghaddas, Experimental and CFD investigation of power consumption in a dual Rushton turbine stirred tank, Chem. Eng. Res. Des. 89(2011) 280-290.

[12] D.A. Kazenin, I.V. Chepura, I.A. Petrov, V.A. Zhavoronkov, Hydrodynamics, mass transfer, and power consumption in air-core stirred tank reactors, Theor. Found. Chem. Eng. 42(2008) 118-124.

[13] F. Scargiali, A. Busciglio, F. Grisafi, A. Tamburini, G. Micale, A. Brucata, Power consumption in uncovered unbaffled stirred tanks:influence of the viscosity and flow regime, Ind. Eng. Chem. Res. 52(2013) 14998-15005.

[14] X. Geng, Z. Gao, Y. Bao, Photographic study of bubble size and void fraction distributions in a gas-liquid stirred tank with hollow blade turbine, J. Chem. Eng. Jpn. 46(2013) 107-115.

[15] M. Laakkonen, M. Honkanen, P. Saarenrinne, J. Aittamaa, Local bubble size distributions, gas-liquid interfacial areas and gas holdups in a stirred vessel with particle image velocimetry, Chem. Eng. J. 109(2005) 37-47.

[16] Y. Bao, L. Chen, Z. Gao, J. Chen, Local void fraction and bubble size distributions in cold-gassed and hot-sparged stirred reactors, Chem. Eng. Sci. 65(2010) 976-984.

[17] A. Ochieng, M.S. Onyango, Homogenization energy in a stirred tank, Chem. Eng. Process. 47(2008) 1853-1860.

[18] M. Bouaifi, M. Roustan, Power consumption, mixing time and homogenization energy in dual-impeller agitated gas-liquid reactors, Chem. Eng. Process. 40(2001) 87-95.

[19] M. Jafari, J.S.S. Mohammadzadeh, Mixing time, homogenization energy and residence time distribution in a gas-induced contactor, Chem. Eng. Res. Des. 83(2005) 452-459.

[20] S. Foucault, A. Gabriel Ascanio, P.A. Tanguy, Power characteristics in coaxial mixing:Newtonian and non-newtonian fluids, Ind. Eng. Chem. Res. 44(2005) 5036-5043.

[21] V.D. Mundale, J.B. Joshi, Optimization of impeller design for gas inducing type mechanically agitated contactors, Can. J. Chem. Eng. 73(2010) 161-172.

[22] B.R. Poulsen, J.J.L. Iversen, Mixing determinations in reactor vessels using linear buffers, Chem. Eng. Sci. 52(1997) 979-984.

[23] G. Ascanio, Mixing time in stirred vessels:A review of experimental techniques, Chin. J. Chem. Eng. 23(2015) 1065-1076.

[24] G. Montante, A. Paglianti, Gas hold-up distribution and mixing time in gas-liquid stirred tanks, Chem. Eng. J. 279(2015) 648-658.

[25] F. Qiu, Z. Liu, R. Liu, X. Quan, C. Tao, Y. Wang, Gas-liquid mixing performance, power consumption, and local void fraction distribution in stirred tank reactors with a rigid-flexile impeller, Exp. Therm. Fluid Sci. 97(2018) 351-363.

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Experimental study of power consumption, local characteristics distributions and homogenization energy in gas–liquid stirred tank reactors

Experimental study of power consumption, local characteristics distributions and homogenization energy in gas–liquid stirred tank reactors

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