Avaliação da utilização de resíduos no coprocessamento em fornos da indústria cimenteira Uma revisão de Literatura

Abstract

The present work discusses the use of industrial waste as fuel in clinker kilns. This use is called co-processing, which is increasingly widespread in the cement industries. It can be said that this practice meets the growing need for responsible disposal of waste from the most diverse activities in the industrial sector. Co-processing is considered and classified as a waste treatment process similar to incineration processes. In the specific case of the cement industry, it means the production of Portland clinker combined with the burning of industrial residues in the kiln system. The difference between the incineration process and co-processing is mainly due to the final temperatures of the clinker manufacturing process and the length of the kiln, which implies higher residence times and temperatures than conventional incinerators. Through the use of energy or as a raw material, the final destination of waste in the cement manufacturing process has a positive impact on the conservation of mineral and energy resources. This work, through a literature review, aimed to address the use of industrial waste in cement industries, highlighting the short and long-term positive economic and environmental impacts of this activity.