Avaliação da influência do coprocessamento nas emissões de óxidos de nitrogênio (NOx) em um forno de clínquer

Abstract

Although the clinker reaction is exothermic, the cement production process as a whole is highly endothermic, so that fuel consumption to maintain this temperature is an important factor in the costs of the industrial process. Waste co-processing emerges as an economical alternative to petroleum coke, as well as an environmental solution for the disposal of solid waste and reduction in the emission of atmospheric pollutants. emissions of NOx from clinker kilns are significant due to the cement production process itself, which requires high temperature, conducive to the formation of thermal NO, in addition to high fuel consumption, which depending on its chemical composition, can generate NO in the fuel. This study evaluated the influence of co-processing on NOx emissions in a certain linker kiln, using the regression analysis technique, based on operational data obtained. You results showed a positive trend towards the use of co-processing to reduce NOx emissions as a thermal substitute for petroleum coke.