Amines immobilized on a solid support for postcombustion CO2 capture–A preliminary analysis of the performance in a VSA or TSA process based on the adsorption isotherms and kinetic data.

Abstract: A series of different amines was immobilized on a silica support by grafting or impregnation and tested for CO₂ adsorption in simulated flue gases. This paper compares the adsorption isotherms and the cyclic adsorption capacities of these materials. Furthermore, we estimate the diffusion rate of CO₂ from simulations of the breakthrough curves and discuss some aspects of the design of a potential adsorption process for CO₂ capture. [Copyright &y& Elsevier]