About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
12th International Symposium on High Temperature Metallurgical Processing
|
Presentation Title |
Smelting Reduction of FeO in Molten Slag Using Alternative Solid Carbon Sources |
Author(s) |
Theint Theint Htet, Zhiming Yan, Koen Meijer, Zushu Li |
On-Site Speaker (Planned) |
Theint Theint Htet |
Abstract Scope |
HIsarna is a promising alternative technology to the blast furnace using a smelting reduction process. This innovative process gives flexibility to use alternative reductants to the standard metallurgical coal. Tata Steel IJmuiden have successfully demonstrated the process using thermal coal and charcoal in a pilot plant to a capacity of 60,000 t/a. There is interest in utilising the relatively clean fossil fuel, natural gas, as a partial replacement of solid carbon in the process. During thermal decomposition Natural gas generates two reductants, carbon black and hydrogen. This research concerns the kinetics of reduction between synthetic HIsarna slag, and the types of solid carbon used in HIsarna trial campaigns and carbon black. Moreover, the morphologies of the samples are examined using SEM in order to determine the reaction mechanism. It is concluded that the overall reaction is initially controlled by chemical reactions and then diffusion of FeO to the slag/carbon interface. |
Proceedings Inclusion? |
Planned: |
Keywords |
Process Technology, Iron and Steel, Other |