Results 31 to 40 of about 130 (110)

Results of Hydrogen Reduction of Iron Ore Pellets at Different Temperatures

steel research international, Volume 96, Issue 5, May 2025.
Using hydrogen as a reductant in DRI units is the steelmaking industry's future, significantly reducing CO2 emissions. Hydrogen‐based reduction depends on the temperature. High temperature can lead to a high reduction degree; however, this may also bring some change in the porosity and microstructures of pellets.
Oleksandr Kovtun, Mykyta Levchenko, Mariia O. Ilatovskaia, Christos G. Aneziris, Olena Volkova   +4 more
wiley   +1 more source

Attractiveness-Competitiveness Matrix as a Technology Strategy Making Tools (Case Study: Ironmaking Technology) [PDF]

بهبود مدیریت, 2015
Volume of steelmaking in Iran should be increased to 50 million tons per year based on 1404 vision, approximately. This requires building the new iron/steelmaking plant and balancing the steel industry supply chain from iron ore to steel slab, hot and ...
Reza Ansari, Javad Soltanzadeh, Amir Sharifian, Morteza Nateghian, Saeed Farabi Khanqahi   +4 more
doaj  

Review and Evaluation of Ceramic‐Stabilized Iron Oxides for Use as Energy Storage Based on Iron‐Steam Process

steel research international, Volume 96, Issue 5, May 2025.
The iron‐steam process is an emerging technology for hydrogen production and storage, gaining attention due to its potential for sustainability and cost‐effectiveness. Developing an inexpensive and stable contact mass with maximum oxygen capacity while maintaining suitable reaction kinetics and chemical yields remains a challenge.
Julien Göthel, Konrad Joerg Burkmann, Olena Volkova   +2 more
wiley   +1 more source

Reduction Kinetics of Fluxed Iron Ore Pellets Made of Coarse Iron Ore Particles

steel research international, Volume 96, Issue 4, April 2025.
The present work evaluates possibility of using relatively coarser iron ore particles for iron making via agglomeration. The motivation is to reduce the energy consumption in milling of the iron ore. The results show that pellets made with coarser iron ore particles have improved reduction behavior and kinetics.
Amit Kumar Singh, Biswajit Mishra, Om Prakash Sinha   +2 more
wiley   +1 more source

Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation

Journal of Materials Research and Technology
Iron ore pellets are increasingly important in the production of sponge iron using reduction furnaces. The utilization of pellets present advantages over lump ores, increasing productivity, process stability and throughput. Compared to lump ores, pellets
Horacio A. Petit, Fernando O. Boechat, Rodrigo M. de Carvalho, Luís Marcelo Tavares   +3 more
doaj   +1 more source

Low‐carbon economic schedule of the H2DRI‐EAF steel plant integrated with a power‐to‐hydrogen system driven by blue hydrogen and green hydrogen

IET Renewable Power Generation, Volume 18, Issue 16, Page 3839-3854, 7 December 2024.
This study investigates the integrated flexible operation mode of a steel plant. An illustrating method is utilised for modelling the entire steel production process and power to hydrogen process in detail for the H2DRI‐EAF steel plant, which includes natural gas, photovoltaic, wind power self‐provided power plants, and carbon capture and storage ...
Bokang Zou, Yuanshi Zhang, Qirui Chen, Qinran Hu, Xiaoyan Hu, Jing Shi, Zesen Li, Qi Wang   +7 more
wiley   +1 more source

Agglomerationstechnologien für Reststoffe aus Midrex-Direktreduktionsanlagen

, 2022
Bei der Herstellung von direkt reduziertem Eisen im Midrex-Direktreduktionsprozess fallen zahlreiche eisenhaltige, feinkörnige Hüttenreststoffe an. Um eine Deponierung der Reststoffe zu vermeiden wurden zwei verschiedene Varianten zur Aufbereitung dieser Reststoffe durch Brikettierung anhand von Laborversuchen erprobt und hinsichtlich ihrer ...
openaire   +1 more source

A Simplified Approach Based on Cellular Automata for Describing Direct Reduced Iron Production in Different Reducing Conditions

steel research international, Volume 95, Issue 3, March 2024.
A fast cellular automata model with low‐computational burden is developed to tackle the direct reduced iron production process under different conditions as a feasible tool for in‐line control of the reduction process. The robustness of the model is confirmed through comparison with industrial data of the final reduced product and that foreseen by the ...
Carlo Mapelli, Gianluca Dall’Osto, Davide Mombelli, Matteo Carmelo Romano, Roberto Scaccabarozzi, Maurizio Spinelli   +5 more
wiley   +1 more source

Reduction disintegration behavior and crystallographic transformation of vanadium–titanium magnetite pellets during hydrogen-based reduction

Journal of Materials Research and Technology
There are many advantages of the smelting of vanadium-titanium magnetite pellets by hydrogen-based shaft furnace pre-reduction and electric arc furnace process, including high reduction efficiency, low carbon dioxide emission and high recovery of ...
Feng Chen, Hao Li, Yufeng Guo, Kuo Liu, Shuai Wang, Lingzhi Yang, Yuekai Wen, Meng Zhang   +7 more
doaj   +1 more source

Prospects for green steelmaking technology with low carbon emissions in China

Carbon Energy, Volume 6, Issue 2, February 2024.
The challenges and prospects of low‐carbon technologies in the steel industry, which is a major emitter of CO2, are discussed. International environmental governance in the steel industry and the current state of low‐carbon technologies are reviewed.
Zhang Fucheng, Hong Lukuo, Xu Ying
wiley   +1 more source