Conference Proceedings
12th International Conference of Molten Slags, Fluxes and Salts MOLTEN 2024 Proceedings
Conference Proceedings
12th International Conference of Molten Slags, Fluxes and Salts MOLTEN 2024 Proceedings
Effect of carbon on the sintering kinetics of a single hematite pellet
The pellet qualities primarily depend upon the thermal profile and gaseous environment during induration. During the induration of the pellet, it undergoes physical as well as chemical changes. Physical changes are mostly due to sintering and chemical changes are due to carbon burning inside the pellet. The effect of carbon on sintering is investigated on a single pellet scale using an optical dilatometer. Sintering is a complex process that involves transportation through various mechanisms. Sintering is quantified in terms of sintering ratio and the kinetic parameter, exponent ‘n’, under isothermal conditions is deduced using the power law equation. The value of n can be used to estimate the sintering mechanism at different isothermal temperatures. Also, the activation energy is calculated using the empirical Arrhenius equation. The activation energy of 0 per cent coke and 1 per cent coke-containing pellets are 531.0 kJ/mole and 552.6 kJ/mole respectively. The order of magnitude of activation energy suggests the same mechanism in both cases. Although the mechanism of sintering is the same, 1 per cent coke-containing pellet sinters more at any isothermal temperature.
Contributor(s):
R A Anand, N N Viswanathan, M M Pande
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Effect of carbon on the sintering kinetics of a single hematite pelletPDFThis product is exclusive to Digital library subscription
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- Published: 2024
- Unique ID: P-04043-Y1S3V0