Characteristics Study of Internal Gas-Liquid Two Phase Flow Field of Three Layers of Air Stirred Tank Reactor

Journal of System Simulation ›› 2016, Vol. 28 ›› Issue (2): 396-403.

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Characteristics Study of Internal Gas-Liquid Two Phase Flow Field of Three Layers of Air Stirred Tank Reactor

Hu Xiaodong¹, Zhang Dexin¹, Jiang Rong², Wu Zenghui³, Tian Qiang⁴

1. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
2. Engineering Training Center of Shandong University of Science and Technology, Qingdao 266590, China;
3. Weihai Chemical Machinery CO., LTD, Weihai 264203, China;
4. Ji'nan Branch, China Petroleum Chemical Co., Jinan 250101, China;

Received:2014-09-17 Revised:2014-10-26 Online:2016-02-08 Published:2020-08-17

Abstract

Abstract: The fluid dynamics and the gas-liquid distribution character in a three-layer stirred tank reactor with 2KSX (four wide blade propeller type stirrer) and PDT (parabolic disc turbine) were analyzed with the MRE (multi-reference frame) method based on Euler-Euler and population balance models. The total and local gas-hold were calculated. The conclusions show that: axial flow was produced by double stir upper KSX with radial flow produced by the third layer of PDT, gas-hold was improved with double-upper-layer stirrers axial driven and the lowest stirrer axial driven, gas-hold increased with the stirred time going on, which would not be extended with stirring with the time more than 26 s.

Key words: Stirred tank reactor, MRF, Euler-Euler model, CFD

CLC Number:

TP391.9

Hu Xiaodong, Zhang Dexin, Jiang Rong, Wu Zenghui, Tian Qiang. Characteristics Study of Internal Gas-Liquid Two Phase Flow Field of Three Layers of Air Stirred Tank Reactor[J]. Journal of System Simulation, 2016, 28(2): 396-403.

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Characteristics Study of Internal Gas-Liquid Two Phase Flow Field of Three Layers of Air Stirred Tank Reactor

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