Effect of the Density of a Microspherical Catalyst on the Operating Regimes of a Fluidized Bed | Sciact - CRIS-система Института катализа

Effect of the Density of a Microspherical Catalyst on the Operating Regimes of a Fluidized Bed Научная публикация

Журнал

Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555

Вых. Данные

Год: 2018, Том: 10, Номер: 2, Страницы: 126-134 Страниц : 9 DOI: 10.1134/s2070050418020101

Ключевые слова

fluidized bed, microspherical catalyst, turbulent regime, bed sectioning with horizontal grids, mean-square deviation of pressure drop fluctuations, particle bed density effect

Авторы

Klenov O.P. ¹ , Noskov A.S. ¹ , Parakhin O.A. ²

Организации

1	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
2	OOO NPO Sintez, Barnaul, 656015 Russia

Информация о финансировании (1)

Федеральное агентство научных организаций России

0303-2016-0010

An experimental study is performed of a circulating fluidized bed of two types of finely dispersed Geldart A particles with different bulk densities. The first type of particles have bulk density ρb = 1200 kg/m3, while the bulk density of the second type of particles is ρb = 1300 kg/m3. The studies are performed on a test bench 0.7 m in diameter and 5.75 m tall at room temperature with air used as the fluidizing gas. The velocity of fluidization ranges from 0.1 to 0.75 m/s. The bed is sectioned along its height with a set of horizontal diffuser grids. The results from measuring the fluctuations, the average drops in pressure, and the pressure distribution along the height of the fluidized bed are used to estimate the effect produced by the density of particles on its operational regimes. Velocity of transition Uc, determined from the mean-square deviations of pressure drop fluctuations, is 0.40 m/s for lighter particles and 0.35 m/s for heavier particles. Velocity of transition Uc determined from the power of the energy spectrum of pressure fluctuations Е is 0.45 and 0.40 m/s for lighter and heavier particles, respectively. The results from pressure measurements along the bed height show a linear drop with increasing bed height, and this drop is faster for heavier particles than for lighter particles.

Klenov O.P. , Noskov A.S. , Parakhin O.A.
Effect of the Density of a Microspherical Catalyst on the Operating Regimes of a Fluidized Bed
Catalysis in Industry. 2018. V.10. N2. P.126-134. DOI: 10.1134/s2070050418020101 WOS Scopus РИНЦ OpenAlex

Кленов О.П. , Носков А.С. , Парахин О.А.
Влияние плотности микросферического катализатора на режимы работы псевдоожиженного слоя
Катализ в промышленности. 2017. Т.17. №4. С.295-303. DOI: 10.18412/1816-0387-2017-4-295-303 РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	1 июн. 2017 г.
Опубликована в печати:	1 апр. 2018 г.
Опубликована online:	5 июл. 2018 г.

Web of science:	WOS:000437444000007
Scopus:	2-s2.0-85049696054
РИНЦ:	35777057
OpenAlex:	W2858076928

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