SOSTENIBILIDAD EN LA FABRICACIÓN DE CEMENTO EN ESPAÑA: ANÁLISIS DEL CONSUMO ENERGÉTICO Y DE LAS EMISIONES DE CO2

Abstract

Cement manufacturing is an industrial process with heavy environmental impact, due to the high energy demand and high carbon dioxide emissions associated to its production. In order to make a correct characterization of these parameters, a very complete set of data (production, raw materials, fuel and electricity consumption) from the 35 plants operating in Spain in 2006-2010 has been studied. Results indicate an energy consumption range of 3,225-6,012 GJ/t and an emission range of 0,581-0,997 tCO2/t. These results are of interest for its use in the sustainability assessment of mortars and structural concrete, in accordance with the Spanish reality. Keywords: Cement; clinker; energy consumption; CO2 emissions; Spain