This research investigates the synthesis and core-shell structure of a composite adsorbent made from Cu-BTC and Zeolite 13X. Carbon dioxide (CO₂), as one of the most significant contributors to global warming, has captured the attention of scientists and driven researchers to explore alternative fuels. Consequently, the importance of purifying hydrogen from impurities such as carbon dioxide, carbon monoxide, methane, and nitrogen is also emphasized here, as hydrogen, being a clean energy carrier, plays a key role in petrochemical industries, oil refining, and energy development. Among various separation techniques, Pressure Swing Adsorption (PSA) stands out as an efficient method due to its high efficiency, ability to produce hydrogen with ultra-high purity (exceeding 99.99%), and relatively low energy consumption. The fundamental principle of this process relies on the selective adsorption of impurities at high pressure, followed by their desorption through pressure reduction using a solid adsorbent. Consequently, the selection and understanding of the adsorbent's behavior are crucial. Novel adsorbents like Metal-Organic Frameworks (MOFs), with their unique porous structure, high surface area, and tunable chemistry, have demonstrated significant potential in gas separation.
In this study, the synthesis and structural confirmation of Cu-BTC as a promising adsorbent was the initial step. Subsequently, various analyses, including XRD, were employed to verify the crystal structure and the physical and chemical properties of the adsorbent. Subsequently, efforts will be made to synthesize composite adsorbents with varying ratios of the constituent adsorbents. These synthesized adsorbents will then be characterized using XRD and FTIR analyses, and the CO2 and N2 adsorption isotherms will be determined. The determination of kinetic and adsorption parameters for different gases (hydrogen and impurities) on the studied adsorbents was carried out. To achieve this, a volumetri