Syngas production from ethanol dry reforming using Cu-based perovskite catalysts promoted with rare earth metals.

This paper reports about the production of syngas from dry reforming of ethanol (EDR) upon LaCuO 3 and CeCuO 3 catalysts that were prepared by using citrate sol-gel method. EDRs were run with fresh catalyst at each varied variable and 42 L/g cat /h of feed in a tubular reactor under atmospheric pressure. At equal feed pressure of reactants, steady state CO 2 conversion increased exponentially from 700 to 800 °C while H 2 and CO yields were increasing differently in sigmoid trend rendering H 2 /CO ratios to drop linearly from 1.7 to 1.0. However, these reaction results except the latter are otherwise when ethanol-CO 2 ratio was increased (reducing CO 2 pressure) at 750 °C. A minimum H 2 /CO ratio was evidenced at the ethanol-CO 2 ratio of 1.48. LaCuO 3 catalyst was more superior in producing syngas owing to its relatively low reduction temperature, high surface area and crystallinity, many active sites, good surface morphology and many C –O, C –H and hydroxyl groups. • Characterization of LaCuO 3 and CeCuO 3 catalysts prepared by using the sol-gel method. • Yield of hydrogen and CO from catalytic ethanol dry reforming at different reaction temperatures and feed ratios. • The ratio of hydrogen to carbon monoxide as syngas product from the ethanol dry reforming reaction. • Relation between characterization results and the reaction results. [ABSTRACT FROM AUTHOR]