Abstract
This paper presents a rather complete model of impregnation kinetics and internal active ingredient profile. Particle characteristics, operating variables, physical variables and chemical variables are taken into account in our model equations. How the interplay of these variables affects the global kinetics and the distribution will be thoroughly discussed in this paper. Finally, our simulations are compared to the experimental distribution of HCl, HReO 4 and H 2PtCl 6 in γ-Al 2O 3 obtained by Miguel et al. 1984, Appl. Catal. 9, 309 and their rate constants of adsorption are found as 0.032, 0.128 and 0.8 min −1 respectively.
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