Equilibrium Profiles for a Class of Tubular Reactor Nonlinear Models

The existence of equilibrium profiles for a class of nonlinear systems arising from convection-dispersion-reaction processes is investigated. It is reported that there is at least one steady state among the physically feasible states for such models. Our approach is based on nonlinear analysis tools such as dissipativity properties, a subtangential condition, the positivity and the compactness of the related co-semigroup