Application of breakthrough curves to investigate the chemisorption of carbon monoxide and hydrogen gases on platinum/silica catalysts

摘要

A study has been made on the consecutive adsorption of CO/H_2 gases on Pt/SiO_2 catalysts at 523 K using breakthrough measurements. The criteria for dispersion, diffusion and change in the pore size is evaluated and discussed as well as the equilibrium kinetic curves, which show to what extent the rates of sorption of one of the gases is affected by the presence of the other. The changes in average pore radii, surface areas and pore volume were very well estimated and correlated well with the breakthrough data.