Abstract
Highly crystalline zeolite Na-X also known as Linde X, is synthesized in pure form using fly ash waste from coal-fired power plants. Functionalization of assynthesized adsorbent was carried out using 2-amino- 2-methyl-1-propanol in order to apply it in postcombustion carbon dioxide capture. Zeolite Na-X was thoroughly characterized through XRD, FTIR, SEM and TEM analysis. The synthesized zeolite was found to have high surface area and octahedral morphology. Zeolite X and functionalized zeolite X were evaluated in a dynamic adsorption assembly for the uptake of carbon dioxide. Functionalized zeolite was found to have better adsorption capacity at 55°C. It also showed good performance in the presence of moisture. Regeneration studies, however, showed a drop after the second cycle in case of functionalized adsorbent.
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