BRAZILIAN ALUMINUM - solutions for sustainable living

BRAZILIAN ALUMINUM SOLUTIONS FOR SUSTAINABLE LIVING 51 THE INDUSTRY’S ENVIRONMENTAL PERFORMANCE 5.3 - Greenhouse gas emissions - 2015 5.3.1 - Total emissions, scopes 1+2 - ton CO 2 e Bauxite mining Alumina refining Primary aluminum production Aluminum secondary production Aluminum processing 6,000,000 4,000,000 2,000,000 0 Source: The sector’s companies 5.3.2 - Emission Intensity, scopes 1+2 - ton CO 2 e/ton of product Bauxite mining Alumina refining Primary aluminum production Aluminum secondary production Aluminum processing 4 3 2 1 0 Source: The sector’s companies 5.3.3 - Notes and Comments Scope 1 – It involves those direct greenhouse gas emissions stemmed from sources that belong to or are controlled by the companies. Scope 2 – It refers to those indirect greenhouse gas emissions resulting from the acquisition of electric and thermal energy consumed by the company. The energy purchased is defined as the one purchased or brought into the company’s organizational premises.  In the smelting process, the figures shown correspond to the sum of emissions for the sort of greenhouse gases present in the aluminum electrolytic smelting process (CO 2 , CF 4 and C 2 F 6 ).  The survey findings show that the highest intensity of GHG emissions in the aluminum chain, considering direct (scope 1) and indirect (scope 2) emissions, lies in the primary aluminum production showing 3,512 ton CO 2 e/ton of aluminum, then in the refinery production at 0.601 ton CO 2 e/ ton of alumina.