Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Analysis Of CO2 Generation In Portland Cement Production
Submission Author:
Gustavo Pereira Tavares , MG
Co-Authors:
Rogério José Silva, Márcio Dimas Ramos, Gustavo Pereira Tavares
Presenter: Gustavo Pereira Tavares
doi://10.26678/ABCM.COBEM2017.COB17-1111
Abstract
The cement industry is characterized by high consumption of thermal and electrical energy, and half of all its cost comes from expenses with fuels and electric energy. Given this scenario, the cement industry is responsible for large environmental impacts caused in the anthropic, biotic and physical environment. These impacts are mainly due to the emission of the polluting gases generated by the burning of fuels. As an example is the emission of CO2, one of the main gases that cause global warming where the cement industry is responsible for about 7% of the CO2 of anthropogenic source released annually in the world in the atmosphere. The coprocessing technique is considered as a global strategy for the mitigation of CO2 emissions in cement plants, since it consists of burning industrial waste and environmental liabilities in the rotary kiln which, due to their calorific value, are used as fuels, thus generating a decrease in the use Of fossil fuels, and the wastes that are coprocessed are called secondary or alternative fuels. This work proposes an analysis of the CO2 generation in cement factory through two case studies being a study using the burning of fossil fuels and the other operating with a mixture of alternative fuels and fossil fuels comparing the presented results of each case study. According to this context, the main strategies and technologies currently developed for the reduction of CO2 emissions generated during the production of Portland cement will be discussed.
Keywords
coprocessing, issue, cement, fuel, energy
