Methanol to clean gasoline over nanostructured CuO–ZnO/HZSM-5 catalyst: Influence of conventional and ultrasound assisted co-impregnation synthesis on catalytic properties and performance

In current paper, the catalytic conversion of methanol to gasoline range hydrocarbons has been studied over CuO(7%)–ZnO(5%)/HZSM-5(Si/Al = 65) catalysts prepared via conventional co-impregnation and ultrasonic methods. The samples were characterized by XRD, FESEM, BET, EDX, TEM and FTIR techniques. Characterizations proved smaller crystal size, more specific surface area and more uniform dispersion for the ultrasonic-assisted synthesized sample. Also, the performance test was done and ultrasonic-assisted synthesized catalyst showed 25% more selectivity to aromatics and 14% more selectivity to octanes and it has more potential to produce desirable products for gasoline cut.