Ind. Eng. Chem. Res. 2006, 45, 4597-4602
4597
CO2 Reforming of Methane to Syngas over CoOx/MgO Supported on Low Surface Area Macroporous Catalyst Carrier: Influence of Co Loading and Process Conditions V. R. Choudhary,* K. C. Mondal, and T. V. Choudhary† Chemical Engineering and Process DeVelopment DiVision, National Chemical Laboratory, Pune-411008, India
The effect of Co loading (5-30 wt %) and process parameters (reduction pretreatment, reaction temperature, and space velocity) have been investigated over CoOx/MgO(5%)/SA-5205 catalyst for the CO2 methane reforming process. The Co loading had a profound effect on the methane conversion and the hydrogen selectivity (initial and time-on-stream activity) for the unreduced catalysts. While negligible methane conversion was observed for the 5 and 10 wt % Co loading catalyst, methane conversions >95% were obtained over the high Co loading (20 and 30 wt %) catalysts; hydrogen selectivity followed the same trend as methane conversion. The Co loading level had a relatively smaller influence in the case of the reduced catalysts. While the 5 wt % Co catalyst showed low methane conversion activity (
