Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction

Diffusion-reaction problem in a porous solid catalyst is important in the design and analysis of heterogeneous phase reactors and has been extensively studies. However, the effect of intraparticle convection on the substrate transport inside the solid has been scantly reported in the literature, tho...

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Main Authors:	Fakih, Syibli Milasi, Jameel, Ahmad Tariq, Noor Batcha, Ibrahim Ali
Format:	Conference or Workshop Item
Language:	English
Published:	Faculty of Engineering, International Islamic University Malaysia (IIUM), 53100 Kuala Lumpur Malaysia 2012
Subjects:	TP155 Chemical engineering TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/63521/ http://irep.iium.edu.my/63521/19/63521_INTRAPARTICLE%20CONVECTION%2C%20DIFFUSION%20AND%20REACTION_complete_new.pdf

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recordtype	eprints
spelling	iium-635212018-07-10T05:38:13Z http://irep.iium.edu.my/63521/ Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction Fakih, Syibli Milasi Jameel, Ahmad Tariq Noor Batcha, Ibrahim Ali TP155 Chemical engineering TP248.13 Biotechnology Diffusion-reaction problem in a porous solid catalyst is important in the design and analysis of heterogeneous phase reactors and has been extensively studies. However, the effect of intraparticle convection on the substrate transport inside the solid has been scantly reported in the literature, though intraparticle convection plays significant role in enhancing the substrate transport inside the porous catalyst. This becomes more significant especially in the case of immobilized biocatalysts applications with limited reactant solubility, such as oxygen in aqueous phase, typically encountered in aerobic fermentation and biodegradation. Though earlier works have reported on the effect of intraparticle convection on the nutrient transport in porous solid catalysts, there remain gaps and unexplored aspects of this problem. This research investigates the effect of intraparticle convection for the case of zero order reaction in slab geometry. The convection effect is represented in term of intraparticle Peclet Number in the differential equation obtained as a result of mass balance for the nutrient transport inside the solid catalyst. The effect of intraparticle flow on the intrapraticle nutrient transport is studied by solving the resulting differential equation for the concentration profile inside the solid which in turn is used to calculate the effectiveness factor of the catalyst. The exact solutions for the zero order reactions is obtained following the analytical approach. The numerical solution using an explicit finite difference scheme is used to validate our analytical results. The analytical and the numerical solutions almost superimpose each other which proves that our analytical solution is correct. The results show that the convection enhances the rate of nutrients transport inside the porous solid. With the increasing value of Intraparticle Peclet Number, the substrate penetrates deeper into the solid in the direction of the flow. Faculty of Engineering, International Islamic University Malaysia (IIUM), 53100 Kuala Lumpur Malaysia 2012-07 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/63521/19/63521_INTRAPARTICLE%20CONVECTION%2C%20DIFFUSION%20AND%20REACTION_complete_new.pdf Fakih, Syibli Milasi and Jameel, Ahmad Tariq and Noor Batcha, Ibrahim Ali (2012) Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction. In: 2nd International Conference on Mathematical Applications in Engineering (ICMAE’12), 3-5 July 2012, Kuala Lumpur, Malaysia.
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TP155 Chemical engineering TP248.13 Biotechnology
spellingShingle	TP155 Chemical engineering TP248.13 Biotechnology Fakih, Syibli Milasi Jameel, Ahmad Tariq Noor Batcha, Ibrahim Ali Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction
description	Diffusion-reaction problem in a porous solid catalyst is important in the design and analysis of heterogeneous phase reactors and has been extensively studies. However, the effect of intraparticle convection on the substrate transport inside the solid has been scantly reported in the literature, though intraparticle convection plays significant role in enhancing the substrate transport inside the porous catalyst. This becomes more significant especially in the case of immobilized biocatalysts applications with limited reactant solubility, such as oxygen in aqueous phase, typically encountered in aerobic fermentation and biodegradation. Though earlier works have reported on the effect of intraparticle convection on the nutrient transport in porous solid catalysts, there remain gaps and unexplored aspects of this problem. This research investigates the effect of intraparticle convection for the case of zero order reaction in slab geometry. The convection effect is represented in term of intraparticle Peclet Number in the differential equation obtained as a result of mass balance for the nutrient transport inside the solid catalyst. The effect of intraparticle flow on the intrapraticle nutrient transport is studied by solving the resulting differential equation for the concentration profile inside the solid which in turn is used to calculate the effectiveness factor of the catalyst. The exact solutions for the zero order reactions is obtained following the analytical approach. The numerical solution using an explicit finite difference scheme is used to validate our analytical results. The analytical and the numerical solutions almost superimpose each other which proves that our analytical solution is correct. The results show that the convection enhances the rate of nutrients transport inside the porous solid. With the increasing value of Intraparticle Peclet Number, the substrate penetrates deeper into the solid in the direction of the flow.
format	Conference or Workshop Item
author	Fakih, Syibli Milasi Jameel, Ahmad Tariq Noor Batcha, Ibrahim Ali
author_facet	Fakih, Syibli Milasi Jameel, Ahmad Tariq Noor Batcha, Ibrahim Ali
author_sort	Fakih, Syibli Milasi
title	Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction
title_short	Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction
title_full	Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction
title_fullStr	Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction
title_full_unstemmed	Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction
title_sort	intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction
publisher	Faculty of Engineering, International Islamic University Malaysia (IIUM), 53100 Kuala Lumpur Malaysia
publishDate	2012
url	http://irep.iium.edu.my/63521/ http://irep.iium.edu.my/63521/19/63521_INTRAPARTICLE%20CONVECTION%2C%20DIFFUSION%20AND%20REACTION_complete_new.pdf
first_indexed	2023-09-18T21:30:05Z
last_indexed	2023-09-18T21:30:05Z
_version_	1777412452701437952

Intraparticle convection, diffusion and reaction of substrate in porous slab catalysts for zero order reaction

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