Highly selective CO methanation over amorphous Ni-Ru-B/ZrO_2 catalyst

Amorphous Ni-Ru-B/ZrO₂ catalyst was prepared by the means of chemical reduction, and selective CO methanation as astrategy for CO removal in fuel processing applications was investigated over the amorphous Ni-Ru-B/ZrO₂ catalyst. The result showed that, at the temperature of 210-230℃, the catalyst was shown to be capable of reducing CO in a hydrogen-rich reformate to less than 10 ppm, while keeping the CO₂ conversion below 1.55% and the hydrogen consumption below 6.50%.