Highly selective CO methanation over amorphous Ni–Ru–B/ZrO2 catalyst

Amorphous Ni–Ru–B/ZrO2 catalyst was prepared by the means of chemical reduction, and selective CO methanation as a strategy 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 °C, 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%.