Optimization of the Iron Ore Direct Reduction Process through Multiscale Process Modeling
Iron ore direct reduction is an attractive alternative steelmaking process in the context of greenhouse gas mitigation. To simulate the process and explore possible optimization, we developed a systemic, multiscale process model. The reduction of the iron ore pellets is described using a specific gr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-06-01
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| Series: | Materials |
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| Online Access: | http://www.mdpi.com/1996-1944/11/7/1094 |
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| author | Rami Béchara Hamzeh Hamadeh Olivier Mirgaux Fabrice Patisson |
| author_facet | Rami Béchara Hamzeh Hamadeh Olivier Mirgaux Fabrice Patisson |
| author_sort | Rami Béchara |
| collection | DOAJ |
| description | Iron ore direct reduction is an attractive alternative steelmaking process in the context of greenhouse gas mitigation. To simulate the process and explore possible optimization, we developed a systemic, multiscale process model. The reduction of the iron ore pellets is described using a specific grain model, reflecting the transformations from hematite to iron. The shaft furnace is modeled as a set of interconnected one-dimensional zones into which the principal chemical reactions (3-step reduction, methane reforming, Boudouard and water gas shift) are accounted for with their kinetics. The previous models are finally integrated in a global, plant-scale, model using the Aspen Plus software. The reformer, scrubber, and heat exchanger are included. Results at the shaft furnace scale enlighten the role of the different zones according to the physico-chemical phenomena occurring. At the plant scale, we demonstrate the capabilities of the model to investigate new operating conditions leading to lower CO2 emissions. |
| first_indexed | 2024-04-13T13:57:52Z |
| format | Article |
| id | doaj.art-a3d423c8ef0745aca663f6a0af185a61 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-13T13:57:52Z |
| publishDate | 2018-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-a3d423c8ef0745aca663f6a0af185a612022-12-22T02:44:08ZengMDPI AGMaterials1996-19442018-06-01117109410.3390/ma11071094ma11071094Optimization of the Iron Ore Direct Reduction Process through Multiscale Process ModelingRami Béchara0Hamzeh Hamadeh1Olivier Mirgaux2Fabrice Patisson3Institut Jean Lamour, CNRS, Université de Lorraine, 54011 Nancy, FranceInstitut Jean Lamour, CNRS, Université de Lorraine, 54011 Nancy, FranceInstitut Jean Lamour, CNRS, Université de Lorraine, 54011 Nancy, FranceInstitut Jean Lamour, CNRS, Université de Lorraine, 54011 Nancy, FranceIron ore direct reduction is an attractive alternative steelmaking process in the context of greenhouse gas mitigation. To simulate the process and explore possible optimization, we developed a systemic, multiscale process model. The reduction of the iron ore pellets is described using a specific grain model, reflecting the transformations from hematite to iron. The shaft furnace is modeled as a set of interconnected one-dimensional zones into which the principal chemical reactions (3-step reduction, methane reforming, Boudouard and water gas shift) are accounted for with their kinetics. The previous models are finally integrated in a global, plant-scale, model using the Aspen Plus software. The reformer, scrubber, and heat exchanger are included. Results at the shaft furnace scale enlighten the role of the different zones according to the physico-chemical phenomena occurring. At the plant scale, we demonstrate the capabilities of the model to investigate new operating conditions leading to lower CO2 emissions.http://www.mdpi.com/1996-1944/11/7/1094ironmakingdirect reductioniron oreDRIshaft furnacemathematical modelsimulationCO2 emissions |
| spellingShingle | Rami Béchara Hamzeh Hamadeh Olivier Mirgaux Fabrice Patisson Optimization of the Iron Ore Direct Reduction Process through Multiscale Process Modeling Materials ironmaking direct reduction iron ore DRI shaft furnace mathematical model simulation CO2 emissions |
| title | Optimization of the Iron Ore Direct Reduction Process through Multiscale Process Modeling |
| title_full | Optimization of the Iron Ore Direct Reduction Process through Multiscale Process Modeling |
| title_fullStr | Optimization of the Iron Ore Direct Reduction Process through Multiscale Process Modeling |
| title_full_unstemmed | Optimization of the Iron Ore Direct Reduction Process through Multiscale Process Modeling |
| title_short | Optimization of the Iron Ore Direct Reduction Process through Multiscale Process Modeling |
| title_sort | optimization of the iron ore direct reduction process through multiscale process modeling |
| topic | ironmaking direct reduction iron ore DRI shaft furnace mathematical model simulation CO2 emissions |
| url | http://www.mdpi.com/1996-1944/11/7/1094 |
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