Neural network approximation of iron oxide reduction process

2005 ◽  
Vol 44 (7) ◽  
pp. 775-783 ◽  
Author(s):  
Tomasz Wiltowski ◽  
Krzysztof Piotrowski ◽  
Hana Lorethova ◽  
Lubor Stonawski ◽  
Kanchan Mondal ◽  
...  
Keyword(s):  
Neural Network ◽  
Iron Oxide ◽  
Reduction Process ◽  
Oxide Reduction ◽  
Iron Oxide Reduction

scholarly journals Machanism of Iron Oxide Reduction and Heat Transfer in the Smelting Reduction Process with a Thick Layer of Slag.

1992 ◽  
Vol 32 (1) ◽  
pp. 95-101 ◽  
Author(s):  
Hiroyuki Katayama ◽  
Takamasa Ohno ◽  
Masao Yamauchi ◽  
Michitaka Matsuo ◽  
Takafumi Kawamura ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Iron Oxide ◽  
Reduction Process ◽  
Thick Layer ◽  
Oxide Reduction ◽  
Smelting Reduction ◽  
Iron Oxide Reduction

scholarly journals Influence of Cerium on the Reduction Behaviour of Iron Oxide by Using Carbon Monoxide: TPR and Kinetic Studies

2019 ◽  
Author(s):  
Tengku Shafazila Tengku Saharuddin ◽  
Nurul Syahira Ezzaty Nor Azman ◽  
Fairous Salleh ◽  
Alinda Samsuri ◽  
Rizafizah Othaman ◽  
...  
Keyword(s):  
Activation Energy ◽  
Carbon Monoxide ◽  
Iron Oxide ◽  
Reduction Process ◽  
Kinetic Studies ◽  
Xrd Analysis ◽  
Oxide Reduction ◽  
Iron Oxide Reduction ◽  
Reduction Behaviour ◽  
Lower Temperature

Reduction of iron oxide is one of the most studied topics owing to the importance of iron/steel industry and also has been used as a precursor and active component in a number of important chemical processes. The interaction between iron oxide and other metal additive have gained interest in the past two decades due to the ability on enhancing the reduction performance of the iron oxide. Therefore, this study was undertaken to investigate the influence of cerium on the reduction behaviours of iron oxide by (10%, v/v) carbon monoxide in nitrogen. The cerium doped (Ce-Fe2O3) and non-doped iron oxide reduction behaviour and the kinetic studies have been studied by temperature programmed reduction (TPR) and the phases formed of partially and completely reduced samples were characterized by X-ray diffraction spectroscopy (XRD) while the activation energy values were calculated from Arrhenius equation using Wimmer’s method. TPR results indicate that the reduction of doped and undoped iron oxide proceeds in three steps reduction (Fe2O3 ? Fe3O4 ? FeO ? Fe), while doped iron oxide showed a large shifted towards lower temperature especially in the transition steps of FeO ? Fe. Furthermore, TPR results also suggested that by adding Ce metal into iron oxide the reduction of metal iron completed at lower temperature (700 ?C) compared to non-doped iron oxide (900 ?C). Meanwhile, XRD analysis indicated that doped iron oxide composed of Fe2O3 and a small amount of FeCe2O4. The increase in the rates of iron oxide reduction may relate to the presence of cerium species in the formed of FeCe2O4 and was confirmed by the decrease in the activation energy regarding to all transition phases (Fe2O3 ? Fe3O4 ? FeO ? Fe) during the reduction process

Kinetic analysis of iron oxide reduction in top gas recycling oxygen blast furnace

2012 ◽  
Vol 39 (5) ◽  
pp. 313-317 ◽  
Author(s):  
Y H Han ◽  
J S Wang ◽  
R Z Lan ◽  
L T Wang ◽  
X J Zuo ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Iron Oxide ◽  
Kinetic Analysis ◽  
Oxide Reduction ◽  
Iron Oxide Reduction ◽  
Oxygen Blast Furnace ◽  
Oxygen Blast ◽  
Top Gas Recycling ◽  
Gas Recycling

On the Simultaneous Iron Oxide Reduction and Carburization Kinetics

2015 ◽  
pp. 247-256
Author(s):  
Jose Carlos D'Abreu ◽  
Helio Marques Kohler ◽  
Edelink Efrain Tinoco Falero ◽  
Mauricio Marcos Otaviano
Keyword(s):  
Iron Oxide ◽  
Oxide Reduction ◽  
Iron Oxide Reduction

Kinetics of iron oxide reduction using CO: Experiments and modeling

2022 ◽  
pp. 134384
Author(s):  
Prakash V. Ponugoti ◽  
Pritesh Garg ◽  
Sanjana N. Geddam ◽  
Samik Nag ◽  
Vinod M. Janardhanan
Keyword(s):  
Iron Oxide ◽  
Oxide Reduction ◽  
Iron Oxide Reduction ◽  
Kinetics Of

Investigation of iron oxide reduction by TEM

1987 ◽  
Vol 18 (1) ◽  
pp. 257-278 ◽  
Author(s):  
Mann-Fu Rau ◽  
David Rieck ◽  
James W. Evans
Keyword(s):  
Iron Oxide ◽  
Oxide Reduction ◽  
Iron Oxide Reduction

Features of Bivalent and Trivalent Iron Oxide Reduction from Slag with Carbon

Metallurgist ◽  
2015 ◽  
Vol 59 (1-2) ◽  
pp. 141-148
Author(s):  
S. A. Makeev ◽  
A. K. Zaitsev ◽  
V. S. Valavin ◽  
Yu. V. Pokhvisnev
Keyword(s):  
Iron Oxide ◽  
Trivalent Iron ◽  
Oxide Reduction ◽  
Iron Oxide Reduction
Sign in / Sign up

Export Citation Format

Share Document