Journal
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
Volume 53, Issue 2, Pages 981-998Publisher
SPRINGER
DOI: 10.1007/s11663-022-02437-1
Keywords
-
Funding
- Tata Steel Europe
- Posco
- Hyundai Steel
- Nucor Steel
- RioTinto Iron and Titanium
- Nippon Steel Corp.
- JFE Steel
- Voestalpine
- RHI-Magnesita
- SeAh Besteel
- Doosan Heavy Industry and Construction
- Natural Sciences and Engineering Research Council of Canada
Ask authors/readers for more resources
The study developed a kinetic model for hot metal pretreatment, incorporating soluble magnesium and insoluble lime co-injection. The model, based on effective equilibrium reaction zone approach and thermodynamic databases, can simulate compositional evolution of hot metal and slag, and can be applied to various chemistries. The accuracy of the model was validated against plant data, and it was used to explore optimization potential for existing pretreatment processes.
A kinetic model for hot metal pretreatment process was developed. The co-injection of soluble magnesium and insoluble lime, and both of the transitory and permanent contact reaction zones were considered in the present model. That is, the model covers all the general features of hot metal desulfurization in the submerged powder injection, practiced at steel plants. The model was based on the effective equilibrium reaction zone approach in combination with FactSage thermodynamic databases. The process was divided into a finite number of reaction zones, and effective reaction volumes of each reaction zone were determined as a function of process parameters based on physical descriptions of reactions' mechanisms. The present model can be applied to a wide range of HM and top slag chemistries, and can calculate compositional evolution of both hot metal and slag during the process. The accuracy of model was compared to the sampled plant data. The current model was also utilized to study the potential for further optimization of the existing hot metal pretreatment process at a steel plant.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available