RESEARCH PROGRESS OF DESULFURIZATION AND DENITRATION TECHNOLOGIES FOR SINTERING FLUE GAS IN IRON AND STEEL INDUSTRY

WANG Ya-xin; LIU Jun; YI Hong-hong; TANG Xiao-long; WANG Si

doi:10.13205/j.hjgc.202209034

Volume 40 Issue 9

Nov. 2022

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(9): 253-261

WANG Ya-xin, LIU Jun, YI Hong-hong, TANG Xiao-long, WANG Si. RESEARCH PROGRESS OF DESULFURIZATION AND DENITRATION TECHNOLOGIES FOR SINTERING FLUE GAS IN IRON AND STEEL INDUSTRY[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(9): 253-261. doi: 10.13205/j.hjgc.202209034

Citation:

WANG Ya-xin, LIU Jun, YI Hong-hong, TANG Xiao-long, WANG Si. RESEARCH PROGRESS OF DESULFURIZATION AND DENITRATION TECHNOLOGIES FOR SINTERING FLUE GAS IN IRON AND STEEL INDUSTRY[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(9): 253-261. doi: 10.13205/j.hjgc.202209034

Citation:

WANG Ya-xin, LIU Jun, YI Hong-hong, TANG Xiao-long, WANG Si. RESEARCH PROGRESS OF DESULFURIZATION AND DENITRATION TECHNOLOGIES FOR SINTERING FLUE GAS IN IRON AND STEEL INDUSTRY[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(9): 253-261. doi: 10.13205/j.hjgc.202209034

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RESEARCH PROGRESS OF DESULFURIZATION AND DENITRATION TECHNOLOGIES FOR SINTERING FLUE GAS IN IRON AND STEEL INDUSTRY

doi: 10.13205/j.hjgc.202209034

WANG Ya-xin¹,
LIU Jun^1,2,
YI Hong-hong^{1,2
,
,},
TANG Xiao-long^1,2,
WANG Si¹

1. School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Key Laboratory of Beijing Municipal Industry Pollutant Resources Processing, Beijing 100083, China

Received Date: 2021-11-10
Available Online: 2022-11-09

Abstract

Abstract

The iron and steel industry is a key basic industry in China, and a typical industry with high air pollutant emissions, including huge quantities of sulfur dioxide(SO₂) and nitrogen oxides(NO_x). With the implementation of ultra-low emission standards in the iron and steel industry, it is urgent to renovate the existing or build new advanced desulfurization and denitration facilities in the sintering process. Based on the introduction of the characteristics of the sintering flue gas and the changes in emission standards, this paper summarizes the application status of separate desulfurization technologies, separate denitrification technologies and simultaneous desulfurization and denitration technologies, as well as the research and development progress of simultaneous desulfurization and denitration technologies, and systematically looks forward to the future development prospects of these technologies. The results indicate that among the separate desulfurization and denitrification technologies, semi-dry desulfurization and low temperature selective catalytic reduction(SCR) denitration have a high potential for application. Meanwhile, the process combination of semi-dry desulfurization+bag dust-removal+SCR has the highest cleaning efficiency. Among the simultaneous desulfurization and denitrification technologies, oxidation method and activated coke method still need further improvement in efficiency and cost, and the simultaneous desulfurization and denitrification technologies in research have a promising potential for long-term development.
- iron and steel industry,
- flue gas desulfurization,
- flue gas denitration,
- sintering flue gas,
- simultaneous desulfurization and denitrification

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References(67)

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