By using direct reduced iron, steel makers can dilute lower grade ores and lower cost ferrous scrap to attain acceptable levels of contamination in the mix. If direct reduced iron pellets are substituted for pelletized ores in blast furnaces, the amount …

2019年1月1日 · This study reviews the different DR processes used to produce Direct Reduced Iron, providing an analysis on the quality requirements of iron-bearing ores for use in these processes. The study also discusses the environmental sustainability of such processes.

2024年2月15日 · Iron oxide pellets are reduced through a gas–solid phase reaction. Thermodynamically, the reduction process occurs through stepwise reactions, forming low-valence oxides, and ultimately producing iron (Sun and Lu, 2009).

2018年12月1日 · In Fig. 1, we show the design of the hydrogen direct reduction (H-DR) process on which the developed chemical process model presented later on in this chapter is based. Iron ore is pre-heated and fed into a reduction shaft, where it is converted to direct reduced iron (DRI) and further compacted to hot briquetted iron (HBI).

2021年12月1日 · Direct reduction of mineral iron carbonate with hydrogen is a high-potential candidate for carbon dioxide emission reduction in the iron and steel ind…

2024年11月26日 · This study explores hydrogen-based direct reduced iron (DRI) production as a key decarbonization strategy for the iron and steel industry, examining global and Chinese development trends and focusing on technical challenges.

2021年6月30日 · High quality direct reduced iron (DRI) plays a fundamental role in determining the functional properties of high-quality steel. DRI powder with a meta…

2024年10月1日 · The steel industry is considered an important basic sector of the national economy, and its high energy consumption and carbon emissions make it a maj…

2025年1月15日 · The iron and steel sector is one of the hardest-to-abate sectors from an emission point of view, emitting 3.74 Gt CO2 annually and contributing to 10% of global energy-related greenhouse gas emissions. Hydrogen-based direct reduced iron is one of the options to achieve deep decarbonization of the sector.

2023年12月1日 · The work proposes a perspective on the direct reduction of iron (DRI) using hydrogen. Typically, iron is produced in blast furnaces (BFI) by the reduction of iron ore with carbon-rich materials such as coal or coke. Greenhouse emissions may be drastically reduced by introducing DRI coal/oil-based, and further reduced by using methane-based DRI.