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Fang C, Xiao Y, Qiu W, Zhang H, Zhao T, Zou R, Luo G, Yao H. Improving Fine Particle Removal Using a Single-Channel Slit Bubbling Device in Wet Flue Gas Desulfurization System. ACS OMEGA 2024; 9:9321-9330. [PMID: 38434889 PMCID: PMC10905572 DOI: 10.1021/acsomega.3c08250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/12/2023] [Accepted: 01/08/2024] [Indexed: 03/05/2024]
Abstract
To improve the cleanliness of coal-fired power plants' particulate matter emissions, a novel device (single-channel slit bubbling particle removal device (SCSB-PRD)) is proposed to improve the wet flue gas desulfurization system's (WFGDs) collaborative particle removal effect. Actual coal-fired flue gas was used to test the particle removal performance. The results showed that the flue gas temperature had no obvious effect on the scrubbing effect of the SCSB-PRD. The scrubbing space, scrubbing liquid volume, and flue gas flow rate effectively changed the gas-liquid flow state, and the bubbling state was the key factor in particle removal. The jet-bubbling contact state was more conducive to removing particles than the foam bubbling state. The jet-bubbling state improved the removal efficiency of fine particles by approximately 30% compared to the foam bubbling state. The device operated in a single stage, and the removal performance of the particulate matter reached more than 60%. Even the submicron particles had a satisfactory removal performance of greater than 50%. The particulate matter concentration at the outlet of the WFGDs was reduced to less than 10 mg/m3, which provides a feasible transformation path for ultraultra-low emissions of particulate matter from coal-fired power plants.
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Affiliation(s)
- Can Fang
- State
Key Laboratory of Coal Combustion (SKLCC), School of Energy and Power
Engineering, Huazhong University of Science
and Technology, Wuhan, Hubei 430074, China
| | - Yi Xiao
- State
Key Laboratory of Coal Combustion (SKLCC), School of Energy and Power
Engineering, Huazhong University of Science
and Technology, Wuhan, Hubei 430074, China
| | - Wencong Qiu
- State
Key Laboratory of Coal Combustion (SKLCC), School of Energy and Power
Engineering, Huazhong University of Science
and Technology, Wuhan, Hubei 430074, China
| | - Haoyu Zhang
- State
Key Laboratory of Coal Combustion (SKLCC), School of Energy and Power
Engineering, Huazhong University of Science
and Technology, Wuhan, Hubei 430074, China
| | - Tianyu Zhao
- State
Key Laboratory of Coal Combustion (SKLCC), School of Energy and Power
Engineering, Huazhong University of Science
and Technology, Wuhan, Hubei 430074, China
| | - Renjie Zou
- State
Key Laboratory of Coal Combustion (SKLCC), School of Energy and Power
Engineering, Huazhong University of Science
and Technology, Wuhan, Hubei 430074, China
| | - Guangqian Luo
- State
Key Laboratory of Coal Combustion (SKLCC), School of Energy and Power
Engineering, Huazhong University of Science
and Technology, Wuhan, Hubei 430074, China
- Shenzhen
Huazhong University of Science and Technology Research Institute, Shenzhen, Guangdong 518052, China
| | - Hong Yao
- State
Key Laboratory of Coal Combustion (SKLCC), School of Energy and Power
Engineering, Huazhong University of Science
and Technology, Wuhan, Hubei 430074, China
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