Direct reduction of iron to facilitate net zero emissions in the steel industry: A review of research progress at different scales

J Ling, H Yang, G Tian, J Cheng, X Wang… - Journal of Cleaner …, 2024 - Elsevier
The global annual production of steel is approximately 2 billion tons, accounting for 8% of
the world's energy demand and 7% of carbon dioxide (CO 2) emissions in the energy sector …

Optimized rotary hearth furnace utilization with blast furnace and electric arc furnace: Techno-economics, CO2 reduction

J Kim, MS Son, JK Park, J Kim - Fuel Processing Technology, 2022 - Elsevier
Two strategies to use a rotary hearth furnace (RHF) are discussed from the perspectives of
techno-economics and CO 2 reduction. One is to use the RHF to produce low-reduced iron …

Review on the chemical reduction modelling of hematite iron ore to magnetite in fluidized bed reactor

RK Soni, E Chinthapudi, SK Tripathy… - Reviews in Chemical …, 2023 - degruyter.com
Steel production is considered as one of the major backbones of many economies. Though
blast furnace is the primary route of steel production, the industries are willing to alternatives …

Rotary hearth furnace for steel solid waste recycling: Mathematical modeling and surrogate-based optimization using industrial-scale yearly operational data

J Kim, MK Cho, M Jung, J Kim, YS Yoon - Chemical Engineering Journal, 2023 - Elsevier
The presence of zinc in byproduct dust produced during steel production poses a challenge
to resource management and can have adverse environmental effects. This study …

Digital transformation of rotary hearth furnace for process automation and CO2 reduction: Hybrid model under limited operational data utilization

M Son, J Kim - Journal of Manufacturing Processes, 2023 - Elsevier
A hybrid model of the rotary hearth furnace was developed by integrating a limited number
of operational data and first-principle knowledge of the process. The digital transformation …

Prediction model of carbon-containing pellet reduction metallization ratio using neural network and genetic algorithm

W Zhang, F Wang, N Li - ISIJ International, 2021 - jstage.jst.go.jp
In this study, we established mathematical model of the carbon-containing pellet reduction
process and used the neural network model to speed up the prediction process for actual …

Effect of oxygen enrichment on flow field, temperature, and gas concentration profile inside a pilot-scale rotary hearth furnace

S Saleem, GG Roy - Metallurgical and Materials Transactions B, 2020 - Springer
Abstract Effect of oxygen enrichment on flow field, temperature, concentration distribution,
emission, and fuel economy has been studied inside a pilot-scale Rotary Hearth Furnace …

[HTML][HTML] Numerical analysis of radiative heat transfer and direct reduction of three-dimensional multilayer ellipsoidal carbon-containing pellet unit in the rotary hearth …

N Li, F Wang - Metals, 2020 - mdpi.com
It is very important for a multilayer pellet bed to have a proper description of the radiant heat
transfer and direct reduction process in the rotary hearth furnace. Ellipsoidal pellets may …

Influence of burner nozzle configuration, and inlet gas composition on combustion, gas dynamics, temperature and concentration profile in a rotary hearth furnace

S Saleem, GG Roy - Ironmaking & Steelmaking, 2021 - journals.sagepub.com
A CDF model for simulating gas dynamics, heat and mass transfer in the freeboard of a pilot-
scale Rotary Hearth Furnace (RHF) is developed in conjunction with an independent solid …

Effects of carbon-containing pellet shapes on its direct reduction process: a numerical study

N Li, F Wang, W Zhang, S Zhang, F Chong - … of the Indian Institute of Metals, 2021 - Springer
A mathematical model for the reduction of different shapes of carbon-containing pellet in a
rotary hearth furnace was established. The influence of the pellet shape on its direct …