Integral Characteristic of Complex Catalytic Reaction Accompanied by Deactivation

New theoretical relationships for a complex catalytic reaction accompanied by deactivation are obtained, using as an example the two-step mechanism (Temkin–Boudart mechanism) with irreversible reactions and deactivation. In domain of small concentrations, Alim=NSk1CAkd, where Alim is limit integral consumption gas substance, NS number active sites per unit catalyst surface; k1 kd, kinetic coefficients which relate to two compete free site Z. CA concentration. One belongs cycle. The other coefficient kd lifetime, τcat=1CZ′1kd, CZ′ dimensionless steady-state concentration sites. main conclusion was formulated follows: lifetime can be enhanced decreasing (quasi-steady-state) some domains parameters, it also achieved increasing rate fresh catalyst. We express this under conditions, elevated activity protects from These results illustrated use computer simulations.