Effect of the Density of a Microspherical Catalyst on the Operating Regimes of a Fluidized Bed Full article
| Journal |
Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
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| Output data | Year: 2018, Volume: 10, Number: 2, Pages: 126-134 Pages count : 9 DOI: 10.1134/s2070050418020101 | ||||
| Tags | fluidized bed, microspherical catalyst, turbulent regime, bed sectioning with horizontal grids, mean-square deviation of pressure drop fluctuations, particle bed density effect | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0010 |
Abstract:
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.
Cite:
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
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
Original:
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 ANCAN OpenAlex
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 ANCAN OpenAlex
Dates:
| Submitted: | Jun 1, 2017 |
| Published print: | Apr 1, 2018 |
| Published online: | Jul 5, 2018 |
Identifiers:
| Web of science: | WOS:000437444000007 |
| Scopus: | 2-s2.0-85049696054 |
| Elibrary: | 35777057 |
| OpenAlex: | W2858076928 |
Citing:
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