Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors

Ihab Shigidi

doi:doi:10.11648/j.ajche.20140206.11

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Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors

Ihab Shigidi

Published in American Journal of Chemical Engineering (Volume 2, Issue 6)

Received: 16 September 2014 Accepted: 13 October 2014 Published: 20 October 2014

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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.

Published in	American Journal of Chemical Engineering (Volume 2, Issue 6)
DOI	10.11648/j.ajche.20140206.11
Page(s)	71-75
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Ammonia Decomposition, Catalytic Reactor, Finite Element Modelling, Convection Transport, Penalty Scheme, Diffusion

References

[1]	WANG, W., PADBAN, N., YE, Z., ANDERSSON, A. & BJERLE, I. 1999. Kinetics of ammonia decomposition in hot gas cleaning. Industrial & engineering chemistry research, 38, 4175-4182.
[2]	CHELLAPPA, A., FISCHER, C. & THOMSON, W. 2002. Ammonia decomposition kinetics over Ni-Pt/Al for PEM fuel cell applications. Applied Catalysis A: General, 227, 231-240.
[3]	T.V. CHOUDHARY, SIVADINARAYANA, C. & GOODMAN, A. D. W. 2001. Catalytic ammonia decomposition: COx-free hydrogen production for fuel cell applications. Catalysis Letters, 72, 197-201.
[4]	NASSEHI, V. 2002. Practical aspects of finite element modelling of polymer processing, Wiley Chichester.
[5]	REDDY, J. N. & GARTLING, D. K. 2010. The finite element method in heat transfer and fluid dynamics, CRC press.
[6]	ZIENKIEWICZ, O. C. & TAYLOR, R. L. 2000. The finite element method: Solid mechanics, Butterworth-heinemann.
[7]	KOU, J. & SUN, S. 2014. Upwind discontinuous Galerkin methods with mass conservation of both phases for incompressible two‐phase flow in porous media. Numerical Methods for Partial Differential Equations.
[8]	WAGHODE, A., HANSPAL, N., SHIGIDI, I., NASSEHI, V. & HELLGARDT, K. 2005. Computer modelling and numerical analysis of hydrodynamics and heat transfer in non-porous catalytic reactor for the decomposition of ammonia. Chemical engineering science, 60, 5862-5877.
[9]	WU, J., NOFZIGER, D., WARREN, J. & HATTEY, J. 2003. Modeling ammonia volatilization from surface-applied swine effluent. Soil Science Society of America Journal, 67, 1-11.

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APA Style

Ihab Shigidi. (2014). Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors. American Journal of Chemical Engineering, 2(6), 71-75. https://doi.org/10.11648/j.ajche.20140206.11

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ACS Style

Ihab Shigidi. Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors. Am. J. Chem. Eng. 2014, 2(6), 71-75. doi: 10.11648/j.ajche.20140206.11

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AMA Style

Ihab Shigidi. Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors. Am J Chem Eng. 2014;2(6):71-75. doi: 10.11648/j.ajche.20140206.11

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@article{10.11648/j.ajche.20140206.11,
  author = {Ihab Shigidi},
  title = {Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors},
  journal = {American Journal of Chemical Engineering},
  volume = {2},
  number = {6},
  pages = {71-75},
  doi = {10.11648/j.ajche.20140206.11},
  url = {https://doi.org/10.11648/j.ajche.20140206.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajche.20140206.11},
  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.},
 year = {2014}
}

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TY  - JOUR
T1  - Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors
AU  - Ihab Shigidi
Y1  - 2014/10/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ajche.20140206.11
DO  - 10.11648/j.ajche.20140206.11
T2  - American Journal of Chemical Engineering
JF  - American Journal of Chemical Engineering
JO  - American Journal of Chemical Engineering
SP  - 71
EP  - 75
PB  - Science Publishing Group
SN  - 2330-8613
UR  - https://doi.org/10.11648/j.ajche.20140206.11
AB  - 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.
VL  - 2
IS  - 6
ER  -

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Author Information

Ihab Shigidi

Department of Chemical Engineering, King Khalid University, P. O. Box 9036, Abha 61413, Saudi Arabia

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APA Style

Ihab Shigidi. (2014). Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors. American Journal of Chemical Engineering, 2(6), 71-75. https://doi.org/10.11648/j.ajche.20140206.11

Copy | Download

ACS Style

Ihab Shigidi. Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors. Am. J. Chem. Eng. 2014, 2(6), 71-75. doi: 10.11648/j.ajche.20140206.11

Copy | Download

AMA Style

Ihab Shigidi. Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors. Am J Chem Eng. 2014;2(6):71-75. doi: 10.11648/j.ajche.20140206.11

Copy | Download

@article{10.11648/j.ajche.20140206.11,
  author = {Ihab Shigidi},
  title = {Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors},
  journal = {American Journal of Chemical Engineering},
  volume = {2},
  number = {6},
  pages = {71-75},
  doi = {10.11648/j.ajche.20140206.11},
  url = {https://doi.org/10.11648/j.ajche.20140206.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajche.20140206.11},
  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.},
 year = {2014}
}

Copy | Download

TY  - JOUR
T1  - Predicting Reactants’ Hydrodynamic Behavior Inside Non-Porous Catalytic Reactors
AU  - Ihab Shigidi
Y1  - 2014/10/20
PY  - 2014
N1  - https://doi.org/10.11648/j.ajche.20140206.11
DO  - 10.11648/j.ajche.20140206.11
T2  - American Journal of Chemical Engineering
JF  - American Journal of Chemical Engineering
JO  - American Journal of Chemical Engineering
SP  - 71
EP  - 75
PB  - Science Publishing Group
SN  - 2330-8613
UR  - https://doi.org/10.11648/j.ajche.20140206.11
AB  - 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.
VL  - 2
IS  - 6
ER  -

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