Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation

Autores
Petit, Andres; Boechat, Fernando O.; de Carvalho, Rodrigo M.; Tavares, Luís Marcelo
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Iron ore pellets are increasingly important in the production of sponge iron using reduction furnaces. The utilization of pellets present advantages over lump ores, increasing productivity, process stability and throughput. Compared to lump ores, pellets present higher resistance to mechanical degradation. Nevertheless, generation of fragments is still regarded as a challenge in operation. Fragments from pellets generated inside the furnace are known to have a strong influence on the properties of the reduction gas, creating operational problems such as increase in pressure drop, clustering and loss of efficiency. This work studies the influence of the mechanical degradation of iron ore pellets on the properties of the gas inside a reduction furnace. A numerical simulation methodology is proposed for the prediction of the relationship between the mechanical stressing of the pellet, the creation of fragments due to degradation and the influence of the fragments generated on the velocity and pressure fields of the reduction gas inside the furnace. The simulation methodology is applied to predict operation of an industrial MINIMOD MIDREX furnace. Results show that the proposed methodology presents great potential for the simulation of the reduction process giving useful insights about the behaviour of key variables and how they relate to the presence of fragments created due to degradation.
Fil: Petit, Andres. Universidade Federal do Rio de Janeiro; Brasil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Boechat, Fernando O.. Universidade Federal do Rio de Janeiro; Brasil
Fil: de Carvalho, Rodrigo M.. Universidade Federal do Rio de Janeiro; Brasil
Fil: Tavares, Luís Marcelo. Universidade Federal do Rio de Janeiro; Brasil
Materia
Iron Ore Pellets
Mechanical degradataion
DEM
CFD
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/258744
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulationPetit, AndresBoechat, Fernando O.de Carvalho, Rodrigo M.Tavares, Luís MarceloIron Ore PelletsMechanical degradataionDEMCFDhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Iron ore pellets are increasingly important in the production of sponge iron using reduction furnaces. The utilization of pellets present advantages over lump ores, increasing productivity, process stability and throughput. Compared to lump ores, pellets present higher resistance to mechanical degradation. Nevertheless, generation of fragments is still regarded as a challenge in operation. Fragments from pellets generated inside the furnace are known to have a strong influence on the properties of the reduction gas, creating operational problems such as increase in pressure drop, clustering and loss of efficiency. This work studies the influence of the mechanical degradation of iron ore pellets on the properties of the gas inside a reduction furnace. A numerical simulation methodology is proposed for the prediction of the relationship between the mechanical stressing of the pellet, the creation of fragments due to degradation and the influence of the fragments generated on the velocity and pressure fields of the reduction gas inside the furnace. The simulation methodology is applied to predict operation of an industrial MINIMOD MIDREX furnace. Results show that the proposed methodology presents great potential for the simulation of the reduction process giving useful insights about the behaviour of key variables and how they relate to the presence of fragments created due to degradation.Fil: Petit, Andres. Universidade Federal do Rio de Janeiro; Brasil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaFil: Boechat, Fernando O.. Universidade Federal do Rio de Janeiro; BrasilFil: de Carvalho, Rodrigo M.. Universidade Federal do Rio de Janeiro; BrasilFil: Tavares, Luís Marcelo. Universidade Federal do Rio de Janeiro; BrasilElsevier2024-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/258744Petit, Andres; Boechat, Fernando O.; de Carvalho, Rodrigo M.; Tavares, Luís Marcelo; Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation; Elsevier; Journal of Materials Research and Technology; 28; 1-2024; 4540-45502238-7854CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmrt.2024.01.064info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:31:31Zoai:ri.conicet.gov.ar:11336/258744instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:31:31.672CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation
title Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation
spellingShingle Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation
Petit, Andres
Iron Ore Pellets
Mechanical degradataion
DEM
CFD
title_short Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation
title_full Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation
title_fullStr Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation
title_full_unstemmed Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation
title_sort Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation
dc.creator.none.fl_str_mv Petit, Andres
Boechat, Fernando O.
de Carvalho, Rodrigo M.
Tavares, Luís Marcelo
author Petit, Andres
author_facet Petit, Andres
Boechat, Fernando O.
de Carvalho, Rodrigo M.
Tavares, Luís Marcelo
author_role author
author2 Boechat, Fernando O.
de Carvalho, Rodrigo M.
Tavares, Luís Marcelo
author2_role author
author
author
dc.subject.none.fl_str_mv Iron Ore Pellets
Mechanical degradataion
DEM
CFD
topic Iron Ore Pellets
Mechanical degradataion
DEM
CFD
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Iron ore pellets are increasingly important in the production of sponge iron using reduction furnaces. The utilization of pellets present advantages over lump ores, increasing productivity, process stability and throughput. Compared to lump ores, pellets present higher resistance to mechanical degradation. Nevertheless, generation of fragments is still regarded as a challenge in operation. Fragments from pellets generated inside the furnace are known to have a strong influence on the properties of the reduction gas, creating operational problems such as increase in pressure drop, clustering and loss of efficiency. This work studies the influence of the mechanical degradation of iron ore pellets on the properties of the gas inside a reduction furnace. A numerical simulation methodology is proposed for the prediction of the relationship between the mechanical stressing of the pellet, the creation of fragments due to degradation and the influence of the fragments generated on the velocity and pressure fields of the reduction gas inside the furnace. The simulation methodology is applied to predict operation of an industrial MINIMOD MIDREX furnace. Results show that the proposed methodology presents great potential for the simulation of the reduction process giving useful insights about the behaviour of key variables and how they relate to the presence of fragments created due to degradation.
Fil: Petit, Andres. Universidade Federal do Rio de Janeiro; Brasil. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Boechat, Fernando O.. Universidade Federal do Rio de Janeiro; Brasil
Fil: de Carvalho, Rodrigo M.. Universidade Federal do Rio de Janeiro; Brasil
Fil: Tavares, Luís Marcelo. Universidade Federal do Rio de Janeiro; Brasil
description Iron ore pellets are increasingly important in the production of sponge iron using reduction furnaces. The utilization of pellets present advantages over lump ores, increasing productivity, process stability and throughput. Compared to lump ores, pellets present higher resistance to mechanical degradation. Nevertheless, generation of fragments is still regarded as a challenge in operation. Fragments from pellets generated inside the furnace are known to have a strong influence on the properties of the reduction gas, creating operational problems such as increase in pressure drop, clustering and loss of efficiency. This work studies the influence of the mechanical degradation of iron ore pellets on the properties of the gas inside a reduction furnace. A numerical simulation methodology is proposed for the prediction of the relationship between the mechanical stressing of the pellet, the creation of fragments due to degradation and the influence of the fragments generated on the velocity and pressure fields of the reduction gas inside the furnace. The simulation methodology is applied to predict operation of an industrial MINIMOD MIDREX furnace. Results show that the proposed methodology presents great potential for the simulation of the reduction process giving useful insights about the behaviour of key variables and how they relate to the presence of fragments created due to degradation.
publishDate 2024
dc.date.none.fl_str_mv 2024-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/258744
Petit, Andres; Boechat, Fernando O.; de Carvalho, Rodrigo M.; Tavares, Luís Marcelo; Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation; Elsevier; Journal of Materials Research and Technology; 28; 1-2024; 4540-4550
2238-7854
CONICET Digital
CONICET
url http://hdl.handle.net/11336/258744
identifier_str_mv Petit, Andres; Boechat, Fernando O.; de Carvalho, Rodrigo M.; Tavares, Luís Marcelo; Analysis of impact of mechanical degradation of iron ore pellets on gas flow in a direct reduction furnace using simulation; Elsevier; Journal of Materials Research and Technology; 28; 1-2024; 4540-4550
2238-7854
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmrt.2024.01.064
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846781919764676608
score 12.982451

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