In this paper two different numerical approaches are used to find out the steady-state solution for multiphase chemical reactors. Such systems are distributed parameter systems and the steady-state formulation problem leads to a system of nonlinear algebraic equations. The problem is to solve the equations in a robust way so that reliable predictions can be made. Bearing this in mind in this work two methods are implement and their performances compared, to know the Orthogonal Collocation Method e the Finite Volume Method. The results show that in spite of good qualitative agreement in the predictions the latter approaches in more suitable to have a direct solution of the steady-state model of the reactor.
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