Journal of Fundamentals of Renewable Energy and Applications
Open Access

Influence of bulk density charcoal in the production of silicon metal

5^th World Bioenergy Congress and Expo

June 29-30, 2017 Madrid, Spain

Crismeire Isbaex

Federal University of Vi�?§osa, Brazil

Posters & Accepted Abstracts: J Fundam Renewable Energy Appl

Abstract :

The need for metal-steel for charcoal quality and quantity satisfactory causes forest plantations, high cost and long-term, are well conducted. In addition, the vulnerability of the Brazilian energy system is to raise production costs in electro-intensive industries. On the assumption that the metal-steel donâ�?�?t get charcoal with appropriate properties, especially in terms of density, the general objective of this study was to evaluate the influence of bulk density charcoal in silicon metal production process (Si-met.). As the literature was scarce, it was necessary to apply methods of interviews with the professionals of the company studied and analysis of material consumption raw material in electric arc furnaces. It is found that the density of charcoal has a share of influence on electricity costs. With an annual production 48844.334 t. Si-Met., the variation in energy prices in the market may result in an opportunity cost of R$ 6,105,755 million when using a denser charcoal (230 kg/m�?³), consuming 10.87 MWh/t. Si-Met and a cost of R$ 61,073,304 million when using a lighter charcoal (199 kg/m�?³), consuming 13.37 MWh/t. Si-Met. Thus, the densest possible for charcoal, better and more efficient production of silicon metal process therefore takes up less space with charcoal within the furnace; reduces the occurrence of charge segregation and formation of voids; stoichiometric improves stability within the furnace; increased productivity; generates less slag; and reduces the consumption of electrode and electric power.

Biography :

Email: engisbaex@gmail.com