Used Tires as Fuel in Clinker Production: Economic and Environmental Implications

This work analyzes how gases emitted during the manufacture of clinker vary in a cement plant using two types fuel: petroleum coke and unusable tires (UTs). study is based on case real time data more than 40 process variables. Gases are analyzed from points production process: sintering kiln, where main focus emissions to atmosphere by chimney, preheater. The variation CO NOx depending oxygen fuel type studied. SO2 levels also decrease was observed when UTs. quality compared according type. results analyzed, one hand, clinker, determined content majority (C3S, alite) minority (free CaO) phases, and, other kiln temperature, most influential parameter productive process. It verified that maintained regardless used. Therefore, use UTs as could generate important economic environmental benefits for companies.