Light Olefins Formation from Syngas Over ZrO2-ZnO Catalysts

Abstract Syngas was converted selectively to ethylene and propene on ZrO 2 -ZnO (mechanically mixed) catalysts, under medium pressure(0.8 MPa) and at not very high temperature (360°C). The Schultz-Flory law was broken over one of the catalysts. In addition, temperature programmed hydrogenation of deposited carbon on used catalyst was performed, mainly ethylene was formed. Moreover, the enhancement of CO conversion by adsorbed ammonia was also discussed according to the results of ESR and NH 8 -TPD.