Abstract: A catalyst grain in a fixed-bed reactor is surrounded by an non-uniform flow because the reactant concentration changes as the reaction mixture moves through the bed. A problem was considered in which a spherical grain is in an non-uniform flow with a linear dependence of the reactant concentration on the longitudinal coordinate of the reactor in the presence of pore-diffusion resistance in the catalyst grain. For a first-order reaction, an analytical solution for the reactant concentration distribution within the grain was obtained. It was shown that, in comparison with a grain in a uniform flow, the reactant concentration increases in the frontal hemisphere of the grain and decreases in its rear hemisphere, and the grain performance remains unchanged because the increase in the reaction rate in the frontal hemisphere is compensated by its decrease in the rear hemisphere. © 2020, Pleiades Publishing, Ltd.

Cite: Zavarukhin S.G. , Kukushkin R.G.
The Effect of the Flow Nonuniformity on the Chemical Process in a Catalyst Grain in the Presence of Pore-Diffusion Resistance
Kinetics and Catalysis. 2020. V.61. N6. P.903-906. DOI: 10.1134/S0023158420060178 WOS Scopus РИНЦ AN OpenAlex

Original: Заварухин С.Г. , Кукушкин Р.Г.
Влияние неоднородности потока на химический процесс в зерне катализатора при наличии внутридиффузионного сопротивления
Кинетика и катализ. 2020. Т.61. №6. С.888-892. DOI: 10.31857/s0453881120060180RSCI РИНЦ OpenAlex

Dates:

Submitted:	Mar 5, 2020
Accepted:	Apr 7, 2020
Published print:	Nov 1, 2020
Published online:	Dec 28, 2020

Identifiers:

Web of science:	WOS:000603310400010
Scopus:	2-s2.0-85098138388
Elibrary:	45055764
Chemical Abstracts:	2021:19454
OpenAlex:	W3116337270

Citing: Пока нет цитирований

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