UTILIZAÇÃO DE ZEÓLITAS COMO ADSORVENTES PARA A REMOÇÃO DE CO2: UMA REVISÃO DA LITERATURA

Abstract

Carbon dioxide (CO2) emissions can occur from several factors such as deforestation, industrial processes, burning of fossil fuels and have become a serious environmental concern throughout the sphere. With this problem, there was an increase in the environmental demands for efficient CO2 separation technologies. Adsorption technologies are widely used to separate CO2 from other light gases due to their multiple technological benefits, including factors such as energy efficiency and low environmental impact. In this scenario, zeolites have been frequently used due to their intrinsic molecular sieving capacity in CO2 adsorption applications due to their adaptable cavities and pore sizes. Like other adsorbents, zeolites can be modified to improve their adsorption capacity through physical and chemical treatments. Several types of zeolites have been used in studies and in different ways, such as 13x commercial zeolite, zeolites synthesized from coal fly ash, zeolite membranes, zeolites embedded in some matrix, among others. Therefore, this work aims to evaluate the adsorption capacity of zeolites in CO2 removal, and the influence of treatments on their adsorption process.