ABSTRACT
The adsorption technology that uses porous materials for CO2 fixation is the ideal way to capture CO2 from different streams; CO2 is not corrosive, and its separation process has a low capital cost, flexibility, and minimum energy requirements for the regeneration of the adsorbents. High specific surface area, high selectivity, easy regeneration ability, and long lifetime are the main criteria for the selection of adsorbents. Typical adsorbents include activated carbon, activated alumina, and zeolites. To enhance the selectivity for CO2 separation, it is imperative to develop new materials, such as carbon molecular sieves, metal–organic frameworks (MOFs), and nanomaterials, or to modify the surface of adsorbents. This chapter reviews researches on the recent applications of different adsorbents for CO2 fixation.
