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An Experimental Study of Film Diffusion and Michaelis-Menten Kinetics in a Packed Bed Reactor,

机译：填充床反应器中膜扩散和michaelis-menten动力学的实验研究，

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The effect of film diffusion on the Michaelis-Menten kinetics of an enzyme immobilized on a spherical support has been described mathematically. The McCune-Wilhelm model was used to develop a relationship for the mass transfer parameter. Experimental evidence indicates that the relationship gives satisfactory predictions of reactor behavior for the range of Reynolds numbers from 20to 120. The model was not satisfactory for determining Michaelis-Menten parameters from integral reaction data in the presence of film diffusional resistances. It is shown that the effects of such a system can be described by a Michaelis-Menten form of the rate equation with an apparent Michaelis constant which incorporates the effects of the film diffusion. The extent of film diffusional limitations may be described by a utilization factor,which is related to the Damkohler number.

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作者
greenfield,paul f. kinzler,darrell f. ;
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年度 1976
页码 1-46
总页数 46
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
mathematical models; membranesmass transfer; enzymes; reaction kinetics; experimental design; comparison; diffusion; films; electrostatics;

机译：数学模型;膜转移;酶;反应动力学;实验设计;比较;扩散;薄膜;静电学;

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专利

1. A film diffusional effect on the apparent kinetic parameters in packed-bed immobilized enzyme reactors [J] . Miyakawa H, Shiraishi F, SASEBO COLL TECHNOL DEPT BIOL amp, Journal of Chemical Technology & Biotechnology . 1997,第4期

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An Experimental Study of Film Diffusion and Michaelis-Menten Kinetics in a Packed Bed Reactor,

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