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Using ultrafine particles from a coal washing plant in metallurgical coke production
Aprovechamiento de partículas de ultrafinos de carbón de una planta lavadora en la producción de coque metalúrgico
DOI:
https://doi.org/10.15446/ing.investig.v31n1.20527Keywords:
coke, ultrafine coal particles, briquetting. (en)coque, ultrafinos de carbón, briquetación (es)
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Blending ultrafine particles from a coal washing plant was studied for coke production by briquetting using 6%w coal tar as binder. The ultrafine coal particles were characterised and a pilot coking test was made in a Koppers' furnace. Coke quality was evaluated by proximate analysis, stability (micum 10 and micum 40), coke reactivity index (CRI) with CO2 and the coke's mechanical strength after reaction with carbon dioxide (CSR index). Briquetting results showed that was possible to obtain coke having 19.0 % CRI and 75.6% CSR, these being the characteristics required in metallurgical processes.
Se estudió el aprovechamiento en mezclas de ultrafinos provenientes de una planta de lavado de carbón para la producción de coque por el proceso de briquetación, utilizando 6% en peso de alquitrán de carbón como aglomerante. Se caracterizaron las materias primas y se realizó una prueba piloto de coquización en un horno tipo Koppers. Se determinó la calidad del coque por pruebas de análisis próximo, estabilidad (Micum 10, M10 y Micum 40, M40), índice de reactividad del coque al CO2 (CRI) y de resistencia después de la reacción con dióxido de carbono (CSR). Los resultados mostraron que la briquetación permite obtener un coque con un CRI de 19,0% y un CSR de 75,6%, características requeridas en los procesos metalúrgicos.
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Copyright (c) 2011 Jesús Manuel Gutierrez Bernal, William Fernando Mora Pulido, Luís Ignacio Rodríguez Varela, Javier Ramírez, José de Jesús Díaz Velásquez
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