ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Analytic expressions for the concentration distribution of reactant and for effectiveness factor have been obtained for zero-order catalytic reactions of the type A → bB. They can be summarized for various physical forms of catalyst to be \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm ln}\,\frac{{{\rm 1}\,{\rm + }\,mC}}{{1\, + \,m}}\, = \, - M_i \,\left\{ {f(\xi)\, - \frac{{g(\xi)}}{{g(\xi _e)}}.\,h\,\left({\xi _{e'} \,\frac{{K_e }}{K}} \right)} \right\} $$\end{document} and \documentclass{article}\pagestyle{empty}\begin{document}$$ \eta '\, = \,1\, + \,h\,\left({\xi _{e'} \frac{{K_e }}{K}} \right)/\,2g(\xi _e)\, = \,1\, - \,\xi _e^i $$\end{document} where \documentclass{article}\pagestyle{empty}\begin{document}$$ f(\xi),\,g(\xi),\,h\left({\xi _{e'} \,\frac{{K_e }}{K}} \right) $$\end{document}, and Mi are differently defined for thin-disk (i = 1), infinite-cylinder (i = 2), and spherical (i = 3) geometries. The results are also presented graphically for rapid calculation of these quantities. The phenomenon of reactant exhaustion associated with a zero-order reaction and the criteria for its occurrence are also discussed.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690170533
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