CO2 hydrogenation to olefins in a microwave-thermal hybrid heating reactor

Abstract

In this study, an approach based on microwave-enhanced CO₂ hydrogenation to olefins was carried out in a two-zone hybrid heating reactor system at moderate pressures of 20–140 psig. Methanol synthesis was conducted in a microwave heated zone over a stable Cu/ZnO/Al₂O₃ catalyst and the methanol conversion to olefins was conducted in a conventional thermally heated zone over SAPO-34 zeolite. This work demonstrates the potential of microwave-driven catalytic technology to decarbonize greenhouse gases into valuable chemicals utilizing green hydrogen under mild conditions.