Kinetics of iron oxide reduction using CO: Experiments and Modeling

Ponugoti, Prakash V. and Geddam, Sanjana N. and Janardhanan, V and et al, . (2022) Kinetics of iron oxide reduction using CO: Experiments and Modeling. Chemical Engineering Journal, 434. pp. 1-11. ISSN 13858947

[img] Text
Chemical_Engineering_Journal.pdf - Published Version
Restricted to Registered users only

Download (1MB) | Request a copy


Reduction of iron ore is central to iron and steel making process. The reaction kinetics are generally studied using classical models that are based on the mechanism of interface control, nucleation control, or diffusion control. This paper presents a different approach in which physical governing equations for the solid phase are solved simultaneously with the gas phase transport equations. The reaction rate is calculated using shrinking core model and the parameters for kinetic term are estimated using genetic algorithm. The model is validated using data collected from experiments performed using iron ore pellets in a packed bed reactor and iron ore powder in a TGA apparatus. The reduced samples are subjected to SEM analysis to observe the microstructural changes that occur as a result of high temperature reduction. The paper further discusses, the applicability of the classical models in describing the different stages of reduction. © 2022 Elsevier B.V.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Janardhanan, V
Item Type: Article
Additional Information: Authors PP, SG and VJ acknowledge the funding received from TATA Steel Ltd, Jamshedpur under the grant S121 for the modeling wok. The experiments and characterization were performed at R & D of TATA Steel Ltd, Jamshedpur.
Uncontrolled Keywords: Experiments; Hematite; Kinetics; Modeling; Reduction
Subjects: Chemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 02 Jul 2022 05:46
Last Modified: 13 Jul 2022 10:23
Publisher URL:
OA policy:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 9460 Statistics for this ePrint Item