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Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors
American Journal of Chemical Engineering
Volume 2, Issue 6, November 2014, Pages: 71-75
Received: Sep. 16, 2014; Accepted: Oct. 13, 2014; Published: Oct. 20, 2014
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Author
Ihab Shigidi, Department of Chemical Engineering, King Khalid University, P. O. Box 9036, Abha 61413, Saudi Arabia; Department of Chemical Engineering, Al-Neelain University, P. O. Box 10179, Khartoum, Sudan
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Abstract
Gaseous reactants usually have complex behaviors ranging from unsteady flow patterns to oscillations due to the differences in various physical and chemical properties. Such behaviors hinder the complete understanding coupled between transport processes and chemical kinetics. Systems within which chemical reactions are coupled with diffusion and convective transport have chemical engineering applications. The aim of the present work is to simulate the steady state behavior of a reaction-diffusion-convection system using the finite element method for ammonia decomposition. The overall model used consists of the flow and mass transport modules which are described by the continuity, Stokes equations and the convective dispersion equation respectively. Concentration profile, velocity and pressure fields presented are for a first order reaction for ammonia decomposition inside tubular non-porous catalytic reactors. Two different types of reactors are considered, the first one represents a fuel cell and the second is for a catalytic wall reactor.
Keywords
Ammonia Decomposition, Catalytic Reactor, Finite Element Modelling, Convection Transport, Penalty Scheme, Diffusion
To cite this article
Ihab Shigidi, Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors, American Journal of Chemical Engineering. Vol. 2, No. 6, 2014, pp. 71-75. doi: 10.11648/j.ajche.20140206.11
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