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

被引：7
|
作者：
Qiu, Facheng [1 ,3 ]
Liu, Zuohua [1 ]
Liu, Renlong [1 ]
Quan, Xuejun [3 ]
Tao, Changyuan [1 ]
Wang, Yundong [2 ]
机构：
[1] Chorgqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China
[2] Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China
[3] Chongqing Univ Technol, Sch Chem & Chem Engn, Chongqing 400054, Peoples R China
来源：
CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2019年 / 27卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Stirred tank; Gas-liquid two-phase; Power consumption; Local characteristics; Homogenization energy; MASS-TRANSFER; 2-PHASE FLOW; MIXING TIME; BUBBLE-SIZE; IDENTIFICATION; PERFORMANCE;
D O I：
10.1016/j.cjche.2018.10.011
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
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. (C) 2018 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
引用
收藏
页码：278 / 285
页数：8
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