Results 31 to 40 of about 2,090,153 (264)

Dimensional reduction for directed branched polymers [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2004
7 pages, 1 eps figure, ref 24 ...
openaire   +3 more sources

Hydrogen Ironmaking: How It Works

open access: yesMetals, 2020
A new route for making steel from iron ore based on the use of hydrogen to reduce iron oxides is presented, detailed and analyzed. The main advantage of this steelmaking route is the dramatic reduction (90% off) in CO2 emissions compared to those of the ...
Fabrice Patisson, Olivier Mirgaux
doaj   +1 more source

Prediction of Solid Conversion Process in Direct Reduction Iron Oxide Using Machine Learning

open access: yesEnergies, 2022
The direct reduction process has been developed and investigated in recent years due to less pollution than other methods. In this work, the first direct reduction iron oxide (DRI) modeling has been developed using artificial neural networks (ANN ...
Masih Hosseinzadeh   +3 more
doaj   +1 more source

Reduction behavior and reaction kinetics of iron ore-biomass composite pellets

open access: yes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

Evaluation of the impact of cluster formation in a direct reduction shaft furnace through numerical simulation

open access: yesREM: International Engineering Journal, 2021
The Direct Reduction (DR) process has been growing worldwide, and there are strong context suggestions that it will grow even more. One of these factors is the environmental pressure that occurs worldwide, and there are already projects to migrate Blast ...
Jean Philippe Santos Gherardi de Alencar   +4 more
doaj   +1 more source

Directed Reduction Algorithms and Decomposable Graphs

open access: yesCoRR, 1990
In recent years, there have been intense research efforts to develop efficient methods for probabilistic inference in probabilistic influence diagrams or belief networks. Many people have concluded that the best methods are those based on undirected graph structures, and that those methods are inherently superior to those based on node reduction ...
Schachter, R. D.   +2 more
openaire   +5 more sources

Antimony production by carbothermic reduction of stibnite in the presence of lime [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2014
Experimental work on the carbothermic reduction of Sb2S3 in the presence of lime was carried out in the temperature range of 973 to 1123 K to produce antimony in an environmentally friendly manner.
Padilla R., Chambi L.C., Ruiz M.C.
doaj   +1 more source

Development of Direct Reduction Process and Smelting Reduction Processes for the Steel Production [PDF]

open access: yesKemija u Industriji, 2006
Although the blast furnace and basic oxygen furnace are going to be primary routes for steel production in future, the steelmaking industry using the electric arc furnace route will continue to grow.
Kožuh S., Gojić M.
doaj  

Limonite-hematite Composite High-phosphorus Iron Ores by Direct Reduction and Magnetic Separation

open access: yesKuangchan zonghe liyong
In order to achieve the efficient utilization of a certain limonite-hematite composite high-phosphorus iron ore, experimental research was conducted on the preparation of iron concentrate based on a direct reduction-magnetic separation process.
Minjin ZHU   +4 more
doaj   +1 more source

Numerical Analysis of Radiative Heat Transfer and Direct Reduction of Three-Dimensional Multilayer Ellipsoidal Carbon-Containing Pellet Unit in the Rotary Hearth Furnace

open access: yesMetals, 2020
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 also be used in industrial production.
Nan Li, Feng Wang
doaj   +1 more source

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