RT info:eu-repo/semantics/article T1 Used Tires as Fuel in Clinker Production: Economic and Environmental Implications A1 Castañón García, Ana María A1 Sanmiquel Pera, Lluis A1 Bascompta Massanes, Marc A1 Vega y de la Fuente, Antonio A1 Contreras del Castillo, Víctor A1 Gómez Fernández, Fernando A2 Explotacion de Minas K1 Ingenierías K1 Clinker K1 Energy Savings K1 Environment Impac K1 Pollutant Gases K1 Used Tires K1 3308 Ingeniería y Tecnología del Medio Ambiente K1 3305 Tecnología de la Construcción K1 3312 Tecnología de Materiales AB [EN] This work analyzes how gases emitted during the manufacture of clinker vary in a cement plant using two types of fuel: petroleum coke and unusable tires (UTs). This study is based on a case study using real time data on more than 40 process variables. Gases are analyzed from two points of the production process: from the sintering kiln, where the main focus of emissions to the atmosphere is by chimney, and from the preheater. The variation of CO and NOx depending on the oxygen and fuel type is studied. The SO2 levels are also analyzed and a decrease was observed when using the UTs. The quality of the clinker is compared according to the fuel type. The results are analyzed, on the one hand, by the quality of the clinker, determined by the content of the majority (C3S, alite) and minority (free CaO) phases, and, on the other hand, by the kiln sintering temperature, the most influential parameter in the productive process. It is verified that the clinker quality is maintained regardless of the type of fuel used. Therefore, the use of UTs as fuel could generate important economic and environmental benefits for cement companies. PB MDPI SN 2071-1050 LK https://hdl.handle.net/10612/19050 UL https://hdl.handle.net/10612/19050 NO Castañón García, A. M., Sanmiquel Pera, L., Bascompta Massanes, M., Vega y de la Fuente, A., Contreras del Castillo, V., & Gómez Fernández, F. (2021). Used tires as fuel in clinker production: Economic and environmental implications. Sustainability (Switzerland), 13(18),10455. https://doi.org/10.3390/SU131810455 DS BULERIA. Repositorio Institucional de la Universidad de León RD 30-may-2024