(289c) Development of a Novel Cu-Based Dual Function Material for CO2 Capture and Conversion

The industrial revolution and energy demand have significantly increased the greenhouse gas emissions, among them CO₂, which is responsible for severe environmental concerns. To this end, various CO₂ mitigation systems have been sought, with more research has focused on integrating CO₂ capture and utilization into valuable products. Recently, dual functional materials (DFMs) that couple adsorbent and catalytic species for CO₂ capture and conversion are notably developed as promising solution. In this study, an investigation of the catalytic performance of Cu-CaO and Rh-promoted Cu-CaO supported over high surface area alumina, for CO₂ conversion to high value products is presented. The results indicated that Cu loading of 10%, 20%, and 30% impregnated onto 10%CaO/Al₂O₃ exhibited higher activity and attained CO₂ conversion of 15%, 15.4%, and 16.44%, respectively at 300 ⁰C and 60 bar. The effect of adsorbent composition, promotor addition and process variables were tested for a selected catalyst where the highest CO₂conversion and MeOH yield were observed at about 350 ⁰C, 80 bar, and 5000 h^-1 GHSV.