Selective formation of light olefins from CO+H 2 over silica supported Co/CeO 2 prepared by fusion method: Preparation, characterization and operational conditions effects

Abstract

The catalyst containing 80%Co/20%Ce/15wt%SiO 2 was prepared using fusion procedure and studied for the conversion of synthesis gas to light olefins. The effect of a range of operating variables such as the pressure, temperature and H 2/CO molar feed ratio on the catalytic performance of fused catalyst was investigated. It was found that the best operating conditions are H 2/CO=2/1, T=350°C and P=2 bar. The results are interpreted in terms of the structure of active catalyst. Characterization of both precursor and calcined catalysts was carried out using Powder X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and BET surface area measurements. © Beigbabaei et al.