The Effect of the Flow Nonuniformity on the Chemical Process in a Catalyst Grain in the Presence of Pore-Diffusion Resistance | Sciact - CRIS-система Института катализа

The Effect of the Flow Nonuniformity on the Chemical Process in a Catalyst Grain in the Presence of Pore-Diffusion Resistance Научная публикация

Журнал

Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210

Вых. Данные

Год: 2020, Том: 61, Номер: 6, Страницы: 903-906 Страниц : 4 DOI: 10.1134/S0023158420060178

Ключевые слова

analytical solution; catalyst grain; first-order reaction; grain performance; non-uniform flow

Авторы

Zavarukhin S.G. ^1,2 , Kukushkin R.G. ¹

Организации

1	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
2	Novosibirsk State Technical University, Novosibirsk, 630073 Russia

Информация о финансировании (1)

Российский научный фонд

18-43-08002

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.

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 CAPlus OpenAlex

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

Поступила в редакцию:	5 мар. 2020 г.
Принята к публикации:	7 апр. 2020 г.
Опубликована в печати:	1 нояб. 2020 г.
Опубликована online:	28 дек. 2020 г.

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

Пока нет цитирований