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.

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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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