Performance analysis of hybrid catalytic conversion of CO2 to DiMethyl ether

The performance of the single-step and sequential-steps catalytic CO2-hydrogenation to DiMethyl Ether (DME) was systematically analyzed. CuO–ZnO model-catalysts for methanol were synthesized via different methods namely co-precipitation, sequential precipitation precipitation-impregnation precursors. Moreover, co-precipitation co-impregnation applied establish bifunctional structures composed over HZSM-5 direct DME in a single-step. In addition, bed made layered-arrangements ZSM-5 catalysts as well random mixture these also analyzed both experimentally through performed model-based study. It observed that faster conversion generated DME, secured by establishing closer distance between materials responsible methanol-dehydration will improve overall selective CO2-conversion. This demonstrated obtaining highest combined yield products at reactor outlet those cases. Similarly, catalyst, instance method (made 1:2 CuO–ZnO:ZSM-5), showed one most promising selectivity 65% 12.5% under reaction temperature 260 °C, lowest tested GHSV 200 h?1, maximum operating pressure 20 bar H2/CO2 ratio 3.