(55k) CO2 Capture and Conversion to Methanol over a Copper Based Dual Functional Material

The industrial intensification has significantly increased the greenhouse gas emissions, among them carbon dioxide, which is responsible for severe environmental issues, such as global warming and climate change. In this study, a novel bimetallic dual functional material based on 10%Cu/10%CaO/Al₂O₃ was developed to capture and convert CO₂ to methanol. Materials with fixed composition was synthesized in the laboratory and characterized using XRD, XPS, BET, and TGA. CO₂ capture experiments were performed using a magnetic suspension balance up to 20 bars. Meanwhile, conversion tests were performed in a high pressure packed bed reactor at 300 °C and 40 bars. The obtained results in term of adsorption capacity revealed a high CO₂ uptake. While CO₂ conversion tests showed a higher selectivity towards methanol and a good conversion rate.