Original scientific paper

The thermal decomposition mechanism of small particle limestone under high CO₂ partial pressure

C. X. Li ; Metallurgy and Energy College, North China University of Science and Technology, Tangshan, China *
Y. Zhang ; Metallurgy and Energy College, North China University of Science and Technology, Tangshan, China
Y. K. Xue ; Metallurgy and Energy College, North China University of Science and Technology, Tangshan, China
D. G. Zhao ; Metallurgy and Energy College, North China University of Science and Technology, Tangshan, China
S. H. Wang ; Metallurgy and Energy College, North China University of Science and Technology, Tangshan, China
K. X. Zhang ; Metallurgy and Energy College, North China University of Science and Technology, Tangshan, China
X. Meng ; Metallurgy and Energy College, North China University of Science and Technology, Tangshan, China
H. J. Shen ; Metallurgy and Energy College, North China University of Science and Technology, Tangshan, China

* Corresponding author.

Abstract

Converter blown limestone powder steelmaking process has the advantages of energy saving and high efficiency to meet the needs of low carbon metallurgy. Based on a thermogravimetric-differential thermal analyzer, the effect of high CO₂ partial pressure on the pyrolysis behavior of limestone at steelmaking temperatures was investigated at 20 °C/min, 30 °C/min, and 40 °C/min, the kinetic parameters of limestone pyrolysis were calculated by the improved double extrapolation method.

Keywords

small particle limestone; decomposition mechanism; high CO₂ partial pressure; low carbon

Hrčak ID:

312263

URI

https://hrcak.srce.hr/312263

Publication date:

1.4.2024.

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