Adsorption Performance Indicator for Power Plant CO2 Capture on Graphene Oxide/TiO2 Nanocomposite

This study presents the adsorption performance indicator for the evaluation of thermal power plant CO2</sub> capture on mesoporous graphene oxide/TiO2</sub> nanocomposite. To begin, this adsorbent was synthesized and characterized using N2</sub> adsorption-desorption measurements </em>(BET and BJH methods), X-Ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FE-SEM)</em> and FT-IR spectroscopy. </em>Subsequently,</em> the pure single-component adsorption isotherms measured at 298 K and the Ideal Adsorbed Solution Theory (IAST) solved with direct search </em>minimisation</em> were applied to estimate the selectivity of the synthesized mesoporous graphene oxide/TiO2</sub> nanocomposite for CO2</sub> over N2</sub> and predict CO2</sub> adsorption capacity in the CO2</sub>:N2</sub> binary gas mixtures, including the molar ratio of 5:95, 10:90 and 15:85. Finally, the results validated by the breakthrough experiments at a fixed-bed column were applied to estimate the Adsorption Performance Indicator (API) for the evaluation of CO2</sub> separation from N2</sub> in the Pressure Swing Adsorption (PSA) process with respect to different types of thermal power plants.</em>