Modeling of chemical reactors — XVI Steady state axial heat and mass transfer in tubular reactors An analysis of the uniqueness of solutions

Abstract Numerical methods for the solution of steady state equations are reviewed and critically discussed. A new technique is presented which, for the parameter study of a problem, enables one to transform the boundary value problem to the initial value problem. Different criteria for testing of uniqueness and multiplicity respectively are discussed. The necessary and sufficient conditions of multiplicity and also analytical procedures providing an estimate of bounds of the Damkohler numbers where multiple solutions can occur, are presented. The mentioned criteria are presented for both an adiabatic and nonisothermal-nonadiabatic case.

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