Mathematical Modeling of Decarburization in Levitated Fe-Cr-C Droplets

作者：Gao, Lei; Shi, Zhe; Yang, Yindong; Li, Donghui; Zhang, Guifang; McLean, Alexander; Chattopadhyay, Kinnor^*

来源：Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, 2018, 49(4): 1985-1994.

DOI：10.1007/s11663-018-1248-1

• ELECTROMAGNETIC-LEVITATION
• DIMENSIONLESS ANALYSIS
• MASS-TRANSFER
• IRON
• KINETICS
• STEEL

Using carbon dioxide to replace oxygen as an alternative oxidant gas has proven to be a viable solution in the decarburization process, with potential for industrial applications. In a recent study, the transport phenomena governing the carbon dioxide decarburization process through the use of electromagnetic levitation (EML) was examined. CO2/CO mass transfer was found to be the principal reaction rate control step, as a result gas diffusion has gained significant attention. In the present study, gas diffusion during decarburization process was investigated using computational fluid dynamics (CFD) modeling coupled with chemical reactions. The resulting model was verified through experimental data in a published paper, and employed to provide insights on phenomena typically unobservable through experiments. Based on the results, a new correction of the Frossling equation was presented which better represents the mass transfer phenomena at the metal-gas interface within the range of this research.

• 出版日期2018-8
• 单位昆明理工大学