محمدرضا مرادي سنگاچين

In this work, benzene based hyper cross-linked polymer (HCP) was synthesized through Friedel-Craft reaction and aim to enhance the gas uptake capability of HCP, the resulting adsorbent was modified through amine group incorporation to HCP skeleton. The samples structure and morphology were eva‎luated by Fourier Transform Infrared spectroscopy, Energy Dispersive X-Ray spectroscopy, and Brunauer Emmett Teller analysis. Based on BET analysis result the HCP and the modified HCP provide 806.21 (m2.g-1) and 453.52 (m2.g-1) surface area and 0.185 (cm3.g-1) and 0.139 (cm3.g-1), respectively. The CO2 and N2 gases adsorption processes were performed in a laboratory scale batch system at a temperature between 298 K to 328 K and pressure up to 9 bar. In addition, adsorption isotherm and kinetic modeling were carried out through fitting experimental adsorption data on theoretical models, Freundlich isotherm model and fractional order kinetic model were obtained as the best model for describing the adsorption process. The maximum CO2 adsorption capacity at 298 K and 9 bar was obtained 301.67 (mg.g-1) for HCP and 414.41 (mg.g-1) for modified HCP. The adsorption thermodynamic modelling was eva‎luated and enthalpy, entropy, and Gibbs free energy of CO2 adsorption process at 298 K were obtained -14.852 (kj.mol-1), -0.024 (kj.mol-1.K-1), -7.597 (kj.mol-1) for HCP and -17.498 (kj.mol-1), -0.029(kj.mol-1.K-1), -8.9 (kj.mol-1) for amine functionalized HCP. Finally, the selectivity of the samples were calculated at a CO2/N2 composition of 15:85 (v/v) and 43% enhancement in adsorption selectivity at 298 K was obtained for amine modified HCP.

پليمر هايپر كراس لينك , پليمر اصلاح شده با آمين , جذب سطحي , گزينش پذيري , ايزوترم , مدلسازي سينتيكي , كربن دي اكسيد/نيتروژن

Hyper cross-linked polymer , Amine functionalized polymer , adsorption , selectivity , Isotherm , Kinetic modeling , CO2/N2

Mohammad Reza Moradi

Dr. Ahad Ghaemi