US EPA

1772608 

Book/Book Chapter 

New environmental approach at baking furnace 

Navarro, F; Figueiredo, F; Miotto, P; Truci, H; Oliveira, H; Silva, M; Reis, R; Moura, E; Mendes, F 

2008 

LIGHT METALS 

839-842 

WOS:000255981900140 

Consorcio de Aluminio do Maranhao (Alumar) is one of the
largest aluminium smelters of Latin America producing 4501000 tons of primary metal. The plant
has three baking furnaces with capacity to produce 700 anodes/day. The furnaces are operated with
diesel oil due to the lack of natural gas distribution in the Northeast of Brazil. Alcoa Inc.
started in 2006 an effort to reduce green house gas emissions worldwide, increasing the
sustainability of their business and allowing Alcoa to apply for carbon credits. Alumar's Baking
Furnace started using in September a mix of light oil and biodiesel as standard fuel. The
development presented in this paper presents a new environmental approach where the main targets
have been: Reduce CO(2) generation with lower cost impact; Implement an environmental fuel in the
baking furnace with no impacts in anode quality, fuel efficiency and baking furnace operations. 

baking furnace; biofuel; carbon credits