NUMERICAL SIMULATION OF GAS-LIQUID PHASE FLOW FIELD IN STIRRED REACTOR BASED ON OILY SLUDGE

SONG Jianfei; JIA Zhikai; LI Siyuan; TONG Kun; NIE Fan

doi:10.13205/j.hjgc.202304014

Volume 41 Issue 4

Apr. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(4): 101-107

SONG Jianfei, JIA Zhikai, LI Siyuan, TONG Kun, NIE Fan. NUMERICAL SIMULATION OF GAS-LIQUID PHASE FLOW FIELD IN STIRRED REACTOR BASED ON OILY SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 101-107. doi: 10.13205/j.hjgc.202304014

Citation:

SONG Jianfei, JIA Zhikai, LI Siyuan, TONG Kun, NIE Fan. NUMERICAL SIMULATION OF GAS-LIQUID PHASE FLOW FIELD IN STIRRED REACTOR BASED ON OILY SLUDGE[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 101-107. doi: 10.13205/j.hjgc.202304014

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NUMERICAL SIMULATION OF GAS-LIQUID PHASE FLOW FIELD IN STIRRED REACTOR BASED ON OILY SLUDGE

doi: 10.13205/j.hjgc.202304014

1. State Key Laboratory of Petroleum Pollution Control, Beijing 102246, China;
2. College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing 102249, China

Received Date: 2022-10-28
Available Online: 2023-05-26
Publish Date: 2023-04-01

Abstract

Abstract

The rheological properties of oily sludge at different temperatures were measured by Anton Paar rheometer, and the relevant rheological parameters were obtained by fitting the power-law equation. Based on the rheological characteristics of oily sludge, the effects of oily sludge temperature and reactor structure on gas-liquid phase flow field, local gas holdup distribution and stirring power were studied by numerical simulation with air-oily sludge as the medium. The results showed that with the increase of the temperature of oily sludge, the disturbance range of the stirring paddle to the liquid phase tended to be wider, the distribution of gas holdup tended to be dispersed, the mixing degree of gas and liquid two phases became more uniform, and the aeration stirring power decreased significantly; among the four different reactor structures, the double-layer impeller had the best dispersion performance, the highest average liquid flow rate and lowest velocity uniformity index. Its mixing performance was the best with an appropriate aeration stirring power.
- oily sludge,
- rheology,
- CFD simulation,
- stir

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References(27)

References

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