Per: Kaelen cristiano Silva (GERDAU - OURO BRANCO), Leandro guilherme moreira (gerdau), cristhian guilherme fernandes (gerdau), frank danilo rosa (gerdau), natalia rezende pinheiro leite (gerdau), guilherme liziero ruggio da silva (gerdau)
Abstract:
In the current context, many coke plants around the world have faced challenges in
relation to the availability of hard-coking coals, deterioration in quality, especially the increase in ash and S, in addition to the increase in the average age of batteries and the demand for reducing carbon emissions. CO2 (Nomura, 2017).
In the case of Brazil, entirely dependent on the import of mineral coal, the selection
and mixing philosophy directly reflect the competitiveness of steel, since the price of
the coal mixture represents around 30% of the production cost.
Given this, the Asian steel industry, especially the Japanese, has focused its efforts on developing alternatives that reduce the cost of coke and CO2 emissions from the process (Silva et al., 2018).
Briquetting Technology allows the increase of semi-coking coals by increasing the charge density with the reduction of the distance between particles, compensating for their lack of expansion, and still producing a coke with adequate mechanical resistance. The present work aims to present a new methodology for characterizing briquettes, in addition to technically validating the inclusion of up to 25% of biomass in the briquette load for the production of metallurgical coke.