The catalytic synthesis of hydrocarbons from H2CO mixtures over the group VIII metals: II. The kinetics of the methanation reaction over supported metals

Abstract The methanation reaction over supported Group VIII metals has been found to provide an example where a catalytic property, in this case activity, can be correlated with a physically measurable property, such as the heat of adsorption for CO. Also, a pronounced compensation effect exists for this reaction. One model for the methanation reaction, assuming a uniform surface, not only explains these observed relationships but also accounts for the experimental rate equation determined for each metal catalyst. The assumption of surface nonuniformity was made in a second kinetic model. This model also describes the data and provides the same conclusions and catalytic trends as the first model.