The CO methanation over NaY-zeolite supported Ni/Co3O4, Ni/ZrO2, Co3O4/ZrO2 and Ni/Co3O4/ZrO2 catalysts

The CO methanation was studied over zeolite NaY supported Ni, Co3O4, ZrO2 catalysts. The XRD, N2 physisorption and SEM analysis were used in order to characterize the catalysts. Catalytic activities were carried out under a feed composition of 1% CO, 50% H2 and 49% He between the 125 °C to 375 °C. Except for the Ni/Co3O4/NaY catalyst, all catalysts gave high surface area because of the presence of zeolite NaY. Average pore diameter of the catalysts fell into the mesopore diameter range. The highest CO methanation activity was obtained with Ni/ZrO2/NaY catalyst at which the CO methanation was started after 175 °C and 100% CO conversion was obtained at 275 °C using the same catalyst.

Figure optionsDownload as PowerPoint slideHighlights
► NaY-zeolite supported Ni, Co3O4, ZrO2 catalysts for CO methanation.
► The XRD, N2 physisorption and SEM analysis were used for characterization.
► Mesoporous catalysts synthesized.
► Ni/ZrO2/NaY gave highest CO methanation activity.
► 100% CO conversion was obtained at 275 °C from the Ni/ZrO2/NaY.