Different materials like activated carbon, metal organic frameworks, silica, etc. have ability to adsorb (exothermic process) and desorb (endothermic process) CO2. These heat interactions during adsorption and desorption processes can be utilized for the development of gas-adsorbent based sorption refrigeration system. Therefore, in the present work, this concept is employed to analyze the thermodynamic performance of CO2-adsorbent based sorption refrigeration system (CO2-A SRS). The chosen adsorbents for thermodynamic simulation are Activated Carbon (Norit RB3), Pore Expanded Mesoporous Silica Materials (PE MSM 41), Amine Tethered Mesoporous Silica Materials (AT MSM 41) and Amine Functionalized Silica (AF Silica). The working pairs are developed based on the available pressure difference between coupled adsorbent to allow sufficient amount of CO2 to flow between the coupled materials in the operating temperature range of 0°C (refrigeration output), 25°C (ambient) and 100°C (heat source). The thermodynamic performance of refrigeration system is compared for two adsorbent pairs. The thermodynamic performance includes refrigeration effect, specific refrigeration power, coefficient of performance, refrigeration capacity and second law of efficiency. The refrigeration effect of Activated Carbon-PE MSM 41 pair is observed double that of AT MCM 41-AF Silica pair. In addition, the thermodynamic performance of CO2-A SRS is compared with the performance of CO2-adsorbent based vapour adsorption refrigeration system (CO2-A VARS) available in literature. The COP of CO2-A SRS is observed higher than CO2-A VARS. © 2020, Faculty of Mechanical Engineering, Belgrade.