A CFD simulation for collaborative removal of particulate matter in a 2-tandem FGD absorber

NIE Pengfei; GAO Zhi; MENG Derun; ZHANG Qing; ZHANG Hongbo

doi:10.13205/j.hjgc.202512017

Volume 43 Issue 12

Dec. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(12): 153-160

NIE Pengfei, GAO Zhi, MENG Derun, ZHANG Qing, ZHANG Hongbo. A CFD simulation for collaborative removal of particulate matter in a 2-tandem FGD absorber[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(12): 153-160. doi: 10.13205/j.hjgc.202512017

Citation:

NIE Pengfei, GAO Zhi, MENG Derun, ZHANG Qing, ZHANG Hongbo. A CFD simulation for collaborative removal of particulate matter in a 2-tandem FGD absorber[J]. ENVIRONMENTAL ENGINEERING , 2025, 43(12): 153-160. doi: 10.13205/j.hjgc.202512017

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A CFD simulation for collaborative removal of particulate matter in a 2-tandem FGD absorber

doi: 10.13205/j.hjgc.202512017

1. Hebei Datang International Wangtan Power Generation Co., Ltd., Tangshan 063611, China;
2. Tangshan University, Tangshan 063020, China;
3. Qingshanhu Energy Research Center Zhejiang University, Hangzhou 310018, China;
4. FORCE Technology (Beijing) Co., Ltd., Beijing 100020, China;
5. China Datang Group Technology Innovation Co., Ltd., Xiongan 071800, China

Received Date: 2023-07-27
Accepted Date: 2023-09-20
Rev Recd Date: 2023-08-30

Available Online: 2026-01-09

Abstract

Abstract

This paper numerically simulated the collaborative removal of particulate matter of a 2-tandem FGD absorber system， established a droplet capture model based on diffusion， interception， and inertial impact effects， and used the methods of segmentation， ME sub-model， and whole absorber calculation， to analyze the gas-liquid-solid three-phase flow and capture efficiencies in the pre-absorber and absorber. The results showed that the pre-absorber and absorber could effectively remove dust from the flue gas. When the dust concentration at the outlet of the dust collector was 50 mg/m³， the dust concentration at the absorber outlet could be reduced to 2.8 mg/m³. The solid concentration at the outlet of the absorber caused by escaping gypsum was 1.83 mg/m³； through comprehensive calculation， it was proved to meet the ultra-low emission standard. The liquid droplets had a great impact on the solid particle emission， and an efficient ME value was needed to ensure the emission level. This paper provides a reference for the optimization design and operation of wet desulfurization systems.
- 2-tandem FGD absorber,
- computational fluid dynamics （CFD）,
- tube ME,
- collaborative removal of particulate matter

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References(12)

References

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