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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

TWO-PHASE MODEL OF A TUBULAR NONADIABATIC REACTOR WITH AXIAL DISPERSION AND GAS-TO-SOLID HEAT AND MASS TRANSFER. NUMERICAL METHODS FOR STEADY STATE ANALYSIS

Get access (open in a dialog) DOI: 10.1615/IHTC7.50
pages 25-31

Аннотация

Three dispersion models of a nonadiabatic catalytic tubular reactor are investigated: one-phase model and two two-phase models considering external gas-to-solid heat and mass transfer. In the second (more complex) two-phase model also heat conduction in the solid phase is considered. The transport equations of the one-phase model and of the simpler two-phase model were solved by a shooting method, which failed for the more complex two-phase model. Solution for this model was obtained by using a finite difference approach. Dependences of the solution on the Damkohler number were evaluated for all three models. For a strong exothermic reaction discontinuities of the profiles in the solid phase may be observed for the model without heat conduction in the solid phase. Introduction of heat conduction in the solid phase does not bring essential changes in the solution.