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Details for article 2 of 6 found articles
| Title: |
CATALYST EFFECTIVENESS FOR MULTICOMPONENT REACTIONS WITH CONCENTRATION-DEPENDENT DIFFUSIVITIES |
| Author: |
Schneider, P. |
| Appeared in: |
Chemical engineering communications |
| Paging: | Volume 2 (1976) nr. 3 pages 155-166 |
| Year: |
1976 |
| Contents: |
The diffusion coefficient,Di has been formulated of the reacting species in the transition region of diffusion for a stoichiometricly simple isothermal reaction in a porous catalyst and its concentration dependence has been determined. The concentration dependence of Di incorporated into the mass balance of the catalyst pellet introduces a new parameter, A (Eq. 11). The effect is demonstrated of this parameter on predicted values of effectiveness factors for three kinetic equations of the Langmuir-Hinshelwood type (Eq. 36-38). If the effectiveness factor is a monotonously decreasing function of the Thiele Modulus, or if the concentration dependence of Di is not too strong, the effectiveness factor can be predicted from the solution of mass balance with concentration independent diffusivity. This prediction can be improved by using a mean diffusion coefficient Di. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 2 of 6 found articles
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