EFFECT OF DIFFUSION RESISTANCES ON SELECTIVITY IN BIDISPERSED POROUS CATALYSTS
- 15 August 1991
- journal article
- research article
- Published by Taylor & Francis in Chemical Engineering Communications
- Vol. 107 (1) , 1-10
- https://doi.org/10.1080/00986449108911545
Abstract
Particle-pellet approach was used for the analysis of selectivity in a consecutive reaction scheme. It was illustrated that the ratio of macro and micropore diffusion resistance (α) has a significant effect on selectivity especially for intermediate values of particle Thiele modulus. Increase of this ratio and increase of particle Thiele modulus yield lower selectivities for the intermediate product.Keywords
This publication has 23 references indexed in Scilit:
- Effectiveness factors and selectivity for parallel catalytic reactions with Langmuir—Hinshelwood kineticsChemical Engineering Science, 1988
- A deactivation model for bidispersed catalysisAIChE Journal, 1988
- Effectiveness factors in bidispersed catalysts: The effect of diffusivity variationsChemical Engineering Science, 1987
- Effectiveness factors in bidispersed catalysts under nonisothermal conditionsAIChE Journal, 1986
- Dynamic analysis of adsorption on bidisperse porous catalystsThe Canadian Journal of Chemical Engineering, 1983
- Simple method for solution of a class of reaction-diffusion problemsAIChE Journal, 1983
- Effectiveness factor and selectivity estimation for a parallel reaction systemChemical Engineering Science, 1983
- Diffusion in Bidisperse Porous Catalyst PelletsIndustrial & Engineering Chemistry Fundamentals, 1974
- Macropore Diffusion in Molecular Sieve Pellets by ChromatographyIndustrial & Engineering Chemistry Fundamentals, 1973
- Mass diffusion and isothermal catalytic selectivityChemical Engineering Science, 1962