Pulverized Coal Injection
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Combustibility behavior of PCI coals, green petroleum coke and charcoal fines used as fuel for injection into blast furnace tuyeres
Abstract Pulverized coal injection (PCI) into blast furnace tuyeres is widely used by integrated steel mills worldwide to reduce the consumption of coke and costs. High injection rates are desirable. The big challenge is to achieve them with cheaper and lower quality raw materials, without losing the quality of the hot metal and the productivity of the blast
REM, Int. Eng. J.. Publicado em: 2019-03
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2. Selection of materials for blast furnace injection using quality indicators
Abstract The injection of pulverized materials is a technique used in most of the blast furnaces in the world to reduce coke and charcoal consumption. In addition, injection is one of the main variables of the blast furnace heat control. Coal is the most used material for the injection, but some industries have been attempting to use other materials, usually
REM, Int. Eng. J.. Publicado em: 2019-03
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3. Combustibility and reactivity of coal blends and charcoal fines aiming use in ironmaking
Charcoal is a very important reducing agent in Brazil, the world’s largest steel industry based on charcoal blast furnace. Charcoal generates large amounts of charcoal fines during its production and processing. A good alternative for harnessing this fuel is the injection into coke-based blast furnaces via PCI process (Pulverized Coal Injection), a key tec
Mat. Res.. Publicado em: 08/04/2016
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4. Reactivity of brazilian coal, charcoal, imported coal and blends aiming to their injection into blast furnaces
For about 10 years the steel industry in Brazil has used pulverized coal injection (PCI) technology in the blast furnaces based on imported coals. In order to decrease the dependence on imported coals, Brazilian coal, which has limited use due to high ash content, was suggested to be mixed with imported coal and charcoal. The aim was to examine the reactivit
Materials Research. Publicado em: 2010-09
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5. Thermal analysis evaluation of the reactivity of coal mixtures for injection in the blast furnace
Pulverized Coal Injection (PCI) is an important standard technology replacing coke partially by pulverized coal into the blast furnace that allows a significant reduction of hot metal costs and environmental impact, contributing to a decrease of coke requirements for ironmaking. Coals typically used in this process in Brazil are, at current time, exclusively
Publicado em: 2010
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6. Estudo de reatividade e combustão de carvões minerais, carvão vegetal e misturas
Há cerca de 10 anos, a indústria siderúrgica implantou a técnica de injeção de carvão pulverizado (PCI – pulverized coal injection) nos altos-fornos (AFs) e esta se baseia na utilização de carvões importados. Visando diminuir a dependência dos mesmos, o uso do carvão vegetal e/ou nacional é uma alternativa interessante. O uso de carvão vegeta
Publicado em: 2010
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7. Comportamento em altas temperaturas das cinzas de carvões para PCI em função da composição química e mineralógica
A técnica de PCI (Pulverized Coal Injection), já consolidada mundialmente, destaca-se como alternativa tecnológica para uma produção mais limpa de ferro via alto-forno. A injeção de carvão pulverizado pelas ventaneiras do alto-forno promove a formação de gases termoredutores para o processo, permitindo a substituição parcial do coque. A prática
Publicado em: 2008
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8. Thermal analysis evaluation of the reactivity of coal mixtures for injection in the blast furnace
Pulverized Coal Injection (PCI) is an important standard technology replacing coke partially by pulverized coal into the blast furnace that allows a significant reduction of hot metal costs and environmental impact, contributing to a decrease of coke requirements for ironmaking. Coals typically used in this process in Brazil are, at current time, exclusively
Materials Research. Publicado em: 2006-03
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9. Utilização de finos de carvão em fornos de calcinação como combustivel alternativo em plantas siderurgicas integradas
Nonrenewable energetic sources include essentially oil, natural gas and coal, the later having estimated worldwide reserves for more than 250 after the exhaustion of the other sources. The price policy for natural gas in Brazil has made attractive its substitution as a complementary source in steel plants by coal itself, whose prices are more stable. In this
Publicado em: 2002