Revisiting Isothermal Effectiveness Factor Equations for Reversible Reactions

Ion exchange resins have many industrial applications, namely as sorbents and catalysts. In solid-catalyzed reactions, intraparticle reaction-diffusion competition is generally described by effectiveness factors calculated numerically or analytically in the case of isothermal particles simple rate laws. Although robust, numerical calculations can be time-consuming, convergence not always guaranteed lacks flexibility user-friendly equations. this work, analytical equations for reversible reactions derived from general scheme A+B⇌C+D are developed validated. These expressed terms an irreversible nth order Thiele modulus (specifically written forward reaction), thermodynamic equilibrium constant, ratios effective diffusivities, surface concentrations. The application such illustrated two liquid phase catalyzed Amberlyst-15, specifically synthesis ethyl acetate acetaldehyde dimethyl acetal. For both prediction concentration profiles batch reactors achieved errors between 1.13% 3.38% six distinct experimental conditions. Finally, impact non-ideal behavior upon multicomponent subsequently conveyed to factors, enlightened.