Iron ore-petcoke briquettes as complementary burden for blast furnaces
Self-reducing agglomerates as a ferrous burden is a sustainable alternative to reduce fuel consumption and enhance productivity in the blast furnace process. This study evaluated self-reducing briquettes using petcoke (PC) as a reducing agent in a reducing atmosphere, to assess their potential for b...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425001231 |
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| author | Beatriz Fausta Gandra Arthur Felipe Lino Oliveira Maurício Covcevich Bagatini Eduardo Osório |
| author_facet | Beatriz Fausta Gandra Arthur Felipe Lino Oliveira Maurício Covcevich Bagatini Eduardo Osório |
| author_sort | Beatriz Fausta Gandra |
| collection | DOAJ |
| description | Self-reducing agglomerates as a ferrous burden is a sustainable alternative to reduce fuel consumption and enhance productivity in the blast furnace process. This study evaluated self-reducing briquettes using petcoke (PC) as a reducing agent in a reducing atmosphere, to assess their potential for blast furnace application. The briquettes were produced in a pilot plant with PC content ranging from 0 to 15% by mass in the mix and evaluated for mechanical strength, metallurgical properties, and morphology. Briquettes containing up to 10% by mass of PC (BRI10) exhibited satisfactory mechanical strength for use in small blast furnaces, along with high shatter and tumbler indices. An optimized feeding strategy, such as blending with sinter, is desirable to enable its use. Although the briquettes exhibited low compressive strength, they did not generate fines during testing, even at 15% by mass of PC. Porosimetry analysis showed that the addition of PC promotes a pore distribution that favors the reduction of the agglomerate. Metallurgically, the briquettes containing up to 10% by mass of PC met the blast furnace requirements. Optical microscopy and XRD analysis after reduction showed that metallic iron increased with the PC content of the briquettes. |
| format | Article |
| id | doaj-art-b65e2930352f433f9d9d54b6ba6a5a19 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-b65e2930352f433f9d9d54b6ba6a5a192025-01-24T04:45:18ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013515561564Iron ore-petcoke briquettes as complementary burden for blast furnacesBeatriz Fausta Gandra0Arthur Felipe Lino Oliveira1Maurício Covcevich Bagatini2Eduardo Osório3Usinas Siderúrgicas de Minas Gerais S/A. (Usiminas), Ironmaking Research and Development Team, Research and Development Center, Av. Pero Vaz de Caminha, 274, 35160-238, Ipatinga, MG, Brazil; Corresponding author.Usinas Siderúrgicas de Minas Gerais S/A. (Usiminas), Ironmaking Research and Development Team, Research and Development Center, Av. Pero Vaz de Caminha, 274, 35160-238, Ipatinga, MG, BrazilFederal University of Minas Gerais (UFMG), Laboratory of Ironmaking Processes, Department of Metallurgical and Materials Engineering, Av. Antônio Carlos, 6627, Escola de Engenharia, 31270-901, Belo Horizonte, MG, BrazilFederal University of Rio Grande do Sul (UFRGS), Iron and Steel Making Laboratory (Lasid/PPGE3M), PO Box 15021, 91501-970, Porto Alegre, RS, BrazilSelf-reducing agglomerates as a ferrous burden is a sustainable alternative to reduce fuel consumption and enhance productivity in the blast furnace process. This study evaluated self-reducing briquettes using petcoke (PC) as a reducing agent in a reducing atmosphere, to assess their potential for blast furnace application. The briquettes were produced in a pilot plant with PC content ranging from 0 to 15% by mass in the mix and evaluated for mechanical strength, metallurgical properties, and morphology. Briquettes containing up to 10% by mass of PC (BRI10) exhibited satisfactory mechanical strength for use in small blast furnaces, along with high shatter and tumbler indices. An optimized feeding strategy, such as blending with sinter, is desirable to enable its use. Although the briquettes exhibited low compressive strength, they did not generate fines during testing, even at 15% by mass of PC. Porosimetry analysis showed that the addition of PC promotes a pore distribution that favors the reduction of the agglomerate. Metallurgically, the briquettes containing up to 10% by mass of PC met the blast furnace requirements. Optical microscopy and XRD analysis after reduction showed that metallic iron increased with the PC content of the briquettes.http://www.sciencedirect.com/science/article/pii/S2238785425001231BriquetteSelf-reductionPetcokeBlast furnace |
| spellingShingle | Beatriz Fausta Gandra Arthur Felipe Lino Oliveira Maurício Covcevich Bagatini Eduardo Osório Iron ore-petcoke briquettes as complementary burden for blast furnaces Journal of Materials Research and Technology Briquette Self-reduction Petcoke Blast furnace |
| title | Iron ore-petcoke briquettes as complementary burden for blast furnaces |
| title_full | Iron ore-petcoke briquettes as complementary burden for blast furnaces |
| title_fullStr | Iron ore-petcoke briquettes as complementary burden for blast furnaces |
| title_full_unstemmed | Iron ore-petcoke briquettes as complementary burden for blast furnaces |
| title_short | Iron ore-petcoke briquettes as complementary burden for blast furnaces |
| title_sort | iron ore petcoke briquettes as complementary burden for blast furnaces |
| topic | Briquette Self-reduction Petcoke Blast furnace |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425001231 |
| work_keys_str_mv | AT beatrizfaustagandra ironorepetcokebriquettesascomplementaryburdenforblastfurnaces AT arthurfelipelinooliveira ironorepetcokebriquettesascomplementaryburdenforblastfurnaces AT mauriciocovcevichbagatini ironorepetcokebriquettesascomplementaryburdenforblastfurnaces AT eduardoosorio ironorepetcokebriquettesascomplementaryburdenforblastfurnaces |