Hybrid Cu-ZnO-ZrO2/H-ZSM5 system for the direct synthesis of DME by CO2 hydrogenation

- Cu-ZnO-ZrO2 methanol catalyst and H-ZSM5 zeolite were used to prepare a hybrid system.
- Different reactor bed configurations were adopted in CO2 hydrogenation to DME.
- The physical mixing of pre-pelletized samples exhibits a superior performance.
- The interaction of sites at metal/oxide-acid interface plays a key catalytic role.