The oxidation of carbon monoxide CO over supported noble metal catalyst is an
important part of the catalytic control in sealed-off TEA CO2 laser system. In this model,
the activities of supported noble metal catalysts (Pt/Al2O3 and Pd/Al2O3) separately in
removal CO as CO2 gas phase are studied at isothermal conditions. A batch equation is used
in this model to study the effect of reaction rate parameter k (sec −1 ) on conversion processes
at contact time t =2500 (sec) and to control the path of gases from and the reactor cavity to
indicate the effect of contact time. These results are confirming that the dissociated gases are
removed by using catalysts to regenerate CO2 molecules during the electrical discharge.