Abstract:
Charcoal grinder, or biochar, is nothing more than the fine charcoal that is generated during the transport and handling of this material, which due to a low mechanical resistance generates a large amount of fines. The biochar has interesting properties for use in the steelmaking processes, which is why it is currently being evaluated, and in some cases used, to replace part of coal that is used in coke making and in blast furnace injection, through the tuyers. The increasing environmental pressure that the steel companies have been suffering, due to CO2 emissions, biomasses as biochar has been gaining strength and can become strategic raw materials for CO2 reduction, besides reducing costs since it has lower price comparing to coals commonly used. With this, this work aims to present the biochar and some successful applications in the steelmaking processes, in addition to an economic and environmental analysis of the replacement of coal by this material.