Behaviour of biofuel addition on metallurgical properties of sinter

Autor:	E. S. Neves, Fernando Vernilli, E. Saito, M. P. Cangani, Sidiney Nascimento Silva, V. F. do Nascimento, D. G. Pinatti, Elson Longo
Rok vydání:	2009
Předmět:	International market Materials science business.industry Mechanical Engineering Metallurgy Metals and Alloys Pilot scale Mechanics of Materials Natural gas Biofuel Materials Chemistry Coal business Blast furnace gas
Zdroj:	Ironmaking & Steelmaking. 36:333-340
ISSN:	1743-2812 0301-9233
DOI:	10.1179/174328108x287784
Popis:	Blast furnace gas yield is essentially controlled by a gas-solid reaction phenomenon, which strongly influences hot metal manufacturing costs. As a result of rising prices for reducing agents on the international market, Companhia Siderurgica Nacional decided to inject natural gas into its blast furnaces. With more gas inside the furnace, the burden permeability became even more critical. To improve blast furnace gas yield, a new technological approach was adopted; raising the metallic burden reaction surface. To that end, a special sinter was developed with permeability being controlled by adding micropore nucleus forming agents, cellulignin coal, without, however, degrading its mechanical properties. This paper shows the main process parameters and the results from physicochemical characterisation of a sinter with controlled permeability, on a pilot scale, compared to those of conventional sinter. Gas flow laboratory simulations have conclusively corroborated the positive effects of micropore nucleus forming agents on enhancing sinter permeability.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eb77b92fb89d2e5f070f5f19c0493f1f https://doi.org/10.1179/174328108x287784 Zobrazit plný text záznamu Plný text ve formátu PDF