THE SOURCE, MIGRATION, TRANSFORMATION AND EFFECT OF CHLORINE IN BLAST FURNACE PRODUCTION

CHENG Zheng-lin; ZHU Xiao-hua; LI Peng-fei

doi:10.13205/j.hjgc.202104014

Volume 39 Issue 4

Jul. 2021

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(4): 86-91

CHENG Zheng-lin, ZHU Xiao-hua, LI Peng-fei. THE SOURCE, MIGRATION, TRANSFORMATION AND EFFECT OF CHLORINE IN BLAST FURNACE PRODUCTION[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(4): 86-91. doi: 10.13205/j.hjgc.202104014

Citation:

CHENG Zheng-lin, ZHU Xiao-hua, LI Peng-fei. THE SOURCE, MIGRATION, TRANSFORMATION AND EFFECT OF CHLORINE IN BLAST FURNACE PRODUCTION[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(4): 86-91. doi: 10.13205/j.hjgc.202104014

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THE SOURCE, MIGRATION, TRANSFORMATION AND EFFECT OF CHLORINE IN BLAST FURNACE PRODUCTION

doi: 10.13205/j.hjgc.202104014

CHENG Zheng-lin^1,2,3,
ZHU Xiao-hua^1,2,3,
LI Peng-fei^{1,2,3
,
,}

1. State Key Laboratory of Iron and Steel Industry Environmental Protection, Beijing 100088, China;
2. Energy Conservation and Environment Protection Co., Ltd, MCC Group, Beijing 100088, China;
3. Central Research Institute of Building and Construction Co., Ltd, MCC Group, Beijing 100088, China

Received Date: 2020-07-16
Available Online: 2021-07-21

Abstract

Abstract

The elemental chlorine in the incoming raw materials undergoes a series of migration and transformation in the blast furnace, mainly enters into the blast furnace gas in the form of hydrogen chloride (HCl), which will lead to system corrosion, subsequent blast furnace gas desulfurization catalyst poisoning and cause environmental impacts. This paper provided an overview of the sources and behaviors of chlorine in blast furnace and its occurrence state in each furnace charge, analyzed the contributions of chlorine's main income items and expenditure items based on the study of the blast furnace chlorine balance, and introduced the migration and transformation behavior of organic and inorganic chlorine in the blast furnace. Although chlorine in the blast furnace production process has positive effect of improving the low temperature reduction degradation of sinter and improving the permeability of the melting zone, it also has a lot of adverse effects on the operation of the blast furnace and the environment. The above contents provided theoretical basis for controlling the negative effects of chlorine on blast furnace production, and the specific dechlorination measures of blast furnace were further summarized, while controlling the chlorine content of raw material from the source was the most direct, effective and economical measure.
- chlorine,
- blast furnace system,
- behavior analysis,
- control measures

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References(31)

References

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