Projeto Cr298: Altas Taxas De Injeção De Carvão Com Baixo Fuel Rate Nos Altos Fornos Da Arcelormittal Tubarão

Sathler, Filipe; Nascimento, Ramiro da Conceição; Perdigão, Leonardo Passos; Ribeiro, Estefan Campos; Wasem, Luiz Augusto

doi:10.5151/2594-357x-30633

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…According to Sathler (2017), one Brazilian steel company in 2016 had an average coke rate and injection rate of, respectively, 295 kg/ ton of hot metal and 188 kg/ t of hot metal. For Silva, 2016 it is necessary 1.2 tons of coal to produce 1 ton of coke; so for the considered blast furnace, the consumption of coal to produce 1 ton of hot metal is 188 kg in PCI and 354 kg of coal in coke, each means 542 kg of coal.…”

Section: Environmental Aspectsmentioning

confidence: 99%

Economic and environmental analyses of biomass torrefaction for injection as pulverized material in blast furnaces

et al. 2021

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Biomass was the first material used as a fuel by humanity, being replaced by fossil fuels after the industrial revolution. With the growing of environment discursions and the effects of CO 2 emissions, biomass has been gaining strength as a potential alternative to fossil fuels, especially for steelmaking, which is responsible for about 5 to 10% of all CO 2 emitted. It is known that biomass, compared to fossil fossils, has a higher volatile content, high moisture and lower calorific value. On the other hand, it has a higher hydrogen content and lower sulfur content (important for the steel industry), in addition it is considered neutral in CO 2 emissions. Torrefaction, heating biomass at a temperature between 200-280°C in an oxygen free atmosphere, is an interesting treatment to adapt biomasses for use in the steelmaking processes, mainly in the pulverized material injection into the blast furnace. PCI is an extremely important process for the production of iron in the blast furnace, due to its ability to reduce coke consumption and optimize the operation of the reactor. This article comes with the purpose of presenting a bibliographic review about PCI technique, torrefaction process, biomasses and its applicability in the steel industry. In addition, an economic and environmental analysis of the possible use of biomass in steelmaking processes will be presented. Results shows that the use of torrefied biomass in the injection process is interesting, generating savings of 10 dollars and reduction of 264kg in CO 2 emissions per ton of hot metal, with a replacement of 50% of the coal used by biomass.

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Section: Environmental Aspectsmentioning

confidence: 99%

Economic and environmental analyses of biomass torrefaction for injection as pulverized material in blast furnaces

et al. 2021

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“…Principais especificações do Alto Forno 1 antes e após a reforma -operacional com empresas do grupo ArcelorMittal, permitindo a identificação de oportunidades de melhorias para buscar o processo de redução de coque rate(CR) até valores de 298 kg/tge aumento da taxa de injeção de carvão pulverizado (PCR) de forma sustentável.Construiu-se um plano detalhado, chamado de Projeto 298[2], com ações para todas as áreas envolvidas e com acompanhamento de parâmetros (KPIs) que assegurassem esses resultados. Essas ações abrangeram tanto desenvolvimentos técnicos, capacitação de pessoas, definições de controles operacionais, estabilidade de equipamentos, controle de qualidade das matérias-primas e gestão de forma integrada.…”

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Alto Forno 01 Da Arcelormittal Tubarão: 20 Milhões De Toneladas

Wasem¹,

Novaes²,

Sathler³

et al. 2018

ABM Proceedings

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Resumo O Alto Forno 01 da ArcelorMittal Tubarão apresenta como resultado a marca de 20 milhões de toneladas produzidas desde o reinício de operação em setembro de 2012. Consumo de combustíveis, produtividade e vida útil têm sido os principais parâmetros de avaliação da performance. Os baixos níveis de coque rate e fuel rate praticados no decorrer destes quase 6 anos de operação contínua tem sido responsáveis por grande parte da redução do custos que, aliadas a um aumento da produção e do controle dos equipamentos, convergem para importantes resultados. Desenvolvimentos essenciais para sustentar os resultados: controle de distribuição de carga, controles de processo e manutenção, gestão integrada das áreas com novo modelo mental, capacitação e desenvolvimento técnico das pessoas. Palavras-chave:Alto Forno; Campanha; Produtividade; Coque Rate.

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Projeto Cr298: Altas Taxas De Injeção De Carvão Com Baixo Fuel Rate Nos Altos Fornos Da Arcelormittal Tubarão

Cited by 2 publications

References 3 publications

Economic and environmental analyses of biomass torrefaction for injection as pulverized material in blast furnaces

Economic and environmental analyses of biomass torrefaction for injection as pulverized material in blast furnaces

Alto Forno 01 Da Arcelormittal Tubarão: 20 Milhões De Toneladas

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