Results 61 to 70 of about 812 (179)
Recycling of Mill Scale Into High‐Purity Iron Through Hydrogen‐Based Reduction
steel research international, Volume 97, Issue 8, Page 4162-4175, August 2026.Mill scale, an iron oxide–rich steel by‐product, is difficult to recycle due to impurities. This study evaluates hydrogen‐based direct reduction and hydrogen plasma smelting reduction as low‐carbon recycling routes. Impurity segregation limits reduction kinetics. Direct reduction achieves 92% conversion in 180 min, while plasma reduction reaches 91% in
Nathalia C. Verissimo +8 more
wiley +1 more source
Metals, 2020 Despite the dominance of the blast furnace ironmaking process, more attention is being paid to the new technologies with lower energy consumption and carbon dioxide emissions.
Benjun Cheng +5 more
doaj +1 more source
Cooling Air Velocity on Iron Ore Pellet Performance Based on Experiments and Simulations
MetalsDuring the pellet cooling process, cooling air velocity is crucial for optimizing the cooling rate, evaluating the utilization rate of cooling heat energy, and improving pellet performance.
Liming Ma +7 more
doaj +1 more source
Reduction behavior and reaction kinetics of iron ore-biomass composite pellets
工程科学学报, 2015 The reduction reaction rate, reduction degree, surface microstructure and weight loss of composite pellets with different components under biomass syngas atmosphere were investigated to illustrate the effects of biomass addition in pellets on the ...
LUO Si-yi, MA Chen, SUN Peng-peng
doaj +1 more source
Experimental research and kinetics analysis on hydrogen reduction of limonite
工程科学学报, 2015 This article presents experimental studies on the effects of H2 on the reduction degree and rate of limonite at different temperatures and kinetic analysis during the hydrogen reduction.
LI Lin +5 more
doaj +1 more source
Isothermal Reduction of Wustite Under Hydrogen Atmosphere at 1673 K–1773 K
MetalsThe use of hydrogen for smelting reduction ironmaking can effectively reduce the consumption of coke, as well as the CO2 emission. However, the dynamic mechanism of this process is not clear. In this paper, isothermal thermogravimetric analysis (TGA) was
Fulong Li +7 more
doaj +1 more source
Utilization of coal in ironmaking.
Journal of the Fuel Society of Japan, 1986 This paper describes the present status of coal utilization in ironmaking.The two main processes of coal injection into blast furnace have been developed to save expensive metallurgical coke;1) The colloidal fuel mixture injection2) The pulverized coal injection (PCI)The development of the former process, that is coal oil mixture (COM) and coal tar ...
openaire +2 more sources
Batch Sintering of FeO·OH and Fe2O3 Blends: Chemical and Metallurgical Characterization
MetalsA sample of goethite iron ore sinter feed (G_SF) was employed as a raw material in a sintering bed. This sample partially replaced hematite sinter feed (H_SF), which is currently used as raw material in a sintering plant in the state of Minas Gerais ...
Igor J. U. V. Pereira +5 more
doaj +1 more source
MetalsThe direct reduction of iron ore by hydrogen is a serious candidate for reducing greenhouse gas emissions in the iron and steelmaking industry by replacing traditional blast furnace technology. The reduction kinetics are key to this process.
Antoine Marsigny +3 more
doaj +1 more source
能源环境保护Against the backdrop of China′s "Dual Carbon", CO emission reduction technologies are crucial in the sintering process. We employed Computational Fluid Dynamics (CFD) to develop separate models for the combustion of fuel particles and for sintering ...
Zhen LI +3 more
doaj +1 more source