Diffusion-reaction of nutrient in immobilized slab biocatalyst for first and zero order reactions

Jameel, Ahmed Tariq and R Muhamad Fakih, RM Syibli Milasi (2011) Diffusion-reaction of nutrient in immobilized slab biocatalyst for first and zero order reactions. In: Current research and development in biotechnology engineering at IIUM. IIUM Press, Kuala Lumpur, pp. 175-181. ISBN 9789674181444

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Abstract

The effect of nutrient diffusion on the overall reaction rate inside porous slab biocatalyst containing an immobilized enzyme or cells has been investigated theoretically. Zero-order and first-order kinetics were studied. The problem is represented in mathematical model developed using shell mass balance on the thin slab of biocatalyst. The second order differential equations developed for zero and first order kinetics are solved analytically to fInd the concentration profile inside the slab biocatalyst. The concentration profile is obtained as a function of Thiele modulus which in turn was used to evaluate effectiveness factor. From the analysis, high diffusion rate of substrate into the porous area increased the concentration profiles and effectiveness factor.

Item Type:	Book Chapter
Additional Information:	5642/20969
Uncontrolled Keywords:	immobilized biocatalyst, effectiveness factor, Thiele modulus, approximate solution, slab geometry
Subjects:	T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr. Ahmad Tariq Jameel
Date Deposited:	04 Jul 2012 09:43
Last Modified:	04 Jul 2012 09:43
URI:	http://irep.iium.edu.my/id/eprint/20969

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