Modeling of Isothermal Reduction of Hematite Pellets Using Hydrogen

Amogh Meshram, Joe Govro, Yuri Korobeinikov, Soumava Chakraborty, Ronald J. O'Malley, Sridhar Seetharaman

Research output: Contribution to journalConference articlepeer-review

Abstract

Reducing CO2 emissions from iron-making process can significantly contribute towards the goals of the United States to fight climate change. Using hydrogen as a reducing agent instead of carbon can drastically reduce the carbon footprint of steel production. Pure hydrogen gas diluted in nitrogen was used to reduce iron ore pellets at different temperatures and feed gas ratios. The porosity of the pellets was studied using SEM-greyscale analysis. A 2D- axisymmetic model was developed using COMSOL Multiphysics with porosity defined as a function of reduction. The model was found to fit the experimental data with greater than 95% accuracy. The observed results are discussed.

Original languageEnglish (US)
Pages (from-to)266-274
Number of pages9
JournalAISTech - Iron and Steel Technology Conference Proceedings
Volume2022-May
DOIs
StatePublished - 2022
EventAISTech 2022 Iron and Steel Technology Conference and Exposition - Pittsburgh, United States
Duration: May 16 2022May 18 2022

Keywords

  • CO
  • DRI
  • Hydrogen
  • Melting
  • Porosity

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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