A discussion on the application of particle reaction model for iron ore pellet induration process modeling
탄재를 포함한 산화철 펠릿 소성 공정 수치 모델의 입자 반응 모델 적용
Abstract
The application of particle reaction model in the packed bed process modeling is discussed for iron ore pellet induration process. Combustion of coke breeze in the pellet is estimated by using shrinking unreacted-core model and grain model in which the progress of chemical reaction is described in different concepts. Under the identical inlet gas and solid conditions, the calculation using shrinking core model showed deviated results in terms of temperature profile and conversion fraction, which may imply the significance of selecting proper particle reaction model in consideration of particle characteristics and process operation conditions.
Keywords
- Packed bed modeling;
- Iron ore pellet induration proces;
- Particle reaction model;
- Shrinking core model;
- Grain model