Application research of carbon dioxide in BOF steelmaking process

Lü Ming; ZHU Rong; BI Xiu-rong; LIN Teng-chang

doi:10.13374/j.issn1001-053x.2011.s1.028

Volume 33 Issue S1

Jul. 2021

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Lü Ming, ZHU Rong, BI Xiu-rong, LIN Teng-chang. Application research of carbon dioxide in BOF steelmaking process[J]. Chinese Journal of Engineering, 2011, 33(S1): 126-130. doi: 10.13374/j.issn1001-053x.2011.s1.028

Citation:

Lü Ming, ZHU Rong, BI Xiu-rong, LIN Teng-chang. Application research of carbon dioxide in BOF steelmaking process[J]. Chinese Journal of Engineering, 2011, 33(S1): 126-130. doi: 10.13374/j.issn1001-053x.2011.s1.028

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Application research of carbon dioxide in BOF steelmaking process

doi: 10.13374/j.issn1001-053x.2011.s1.028

Lü Ming^{1,2
,
,},
ZHU Rong^1,2,
BI Xiu-rong^1,2,
LIN Teng-chang^1,2

1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2011-08-01
Available Online: 2021-07-30

Abstract

Abstract

Reaction mechanism between CO₂ and molten pool elements at the steelmaking temperature was researched. The related thermodynamics and kinetics were analyzed. The industrial test by top and bottom blowing CO₂ was carried out in a 30 t converter. It is discovered that the amounts of smoke dust and T-Fe are reduced by 11.15% and 12.98% on average. Iron loss of slag is lowered by 3.10%,and the contents of nitrogen and phosphorus are decreased by 50% and 23.33% respectively. The new process is absolutely feasible,which will provide a new method for saving energy consumption in BOF steelmaking process.
- steelmaking,
- dust,
- slag,
- carbon dioxide