Kaolinite-based zeolites synthesis and their application in CO2 capture processes

• Zeolite type A was synthesized from natural resources under mild conditions. Textural properties and crystallinity can be controlled through synthesis Microporosity plays a key role on CO 2 /N /H O selectivies. Under dry conditions, is readily desorbed at moderate temperatures. The presence of water hinders the desorption physisorbed species. In light urgent need reducing atmospheric emissions, use low-cost adsorbents, that exhibit high affinity adsorption capacity, promising method economic environmental point view to separate flue gas emitted large sources emissions like power-fueled plants. Clay minerals are raw materials with availability all over planet great versatility in fields catalysis processes. present study pretends elucidate link between reaction conditions during zeolite kaolinite its capacity. For purpose, via hydrothermal process alkaline solution using metakaolinite as starting material. obtained by calcination 600 °C some parameters such temperature time were modified optimize aiming for capacity adsorbent. Synthesized characterized X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), N adsorption–desorption ?196 0 (up 10 bars) isotherms Nuclear Magnetic Resonance solids (NMR). addition, evaluated means 25 up pressure. results indicated 4A successfully prepared (via metakaolinization) 100 48 h showing chemical physical similar commercial zeolite.