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Modeling intra-particle convection in heterogeneous non-catalytic reacting systems
Fernandes, Natércia C. P.; Castro, José A. A. M.A dynamic mechanistic model of a multi-phase heterogeneous batch reactor processing a non-catalytic fluid-solid reaction is developed and numerically solved. The model takes into account both intra-particular convection and diffusion phenomena, as well as chemical reaction between the fluid and the solid. By addressing the until now ignored case of convection originated by the continuous increase of the particl...
Steady-state simulation of a continuous moving bed reactor in the pulp and pape...
Fernandes, Natércia C. P.; Castro, José A. A. M.This paper is concerned with the mathematical modeling and simulation of the steady-state operation of an industrial moving bed heterogeneous reactor for the kraft pulping of Eucalyptus globulus. The cooking takes place in a single-vessel hydraulic digester adapted for isothermal cooking (ITC), a further development of the modified continuous cooking (MCC) process. A heterogeneous model is used to take into acc...
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