No abstract

The reduction of emission of carbon dioxide from flue gases can be achieved using post-combustion technologies, such as the adsorption using efficient solid sorbents. In this work, the adsorption of CO 2 on hydrotalcite was studied using dynamical and static methods. The breakthrough curves were obtained at different flow gas and total pressure 1.0 bar, using CO 2 diluted in helium at 29 • C. The experimental data showed that the Freundlich model was more suitable to describe the adsorption equilibrium, and the constants of Freundlich (k = 5.5 × 10 −4 and n = 0.23), are typical for favorable isotherm. The linear driving force model was suitable to describe the breakthrough curves.