Separating Device for Capturing Fine Particles Formed During Operation of Fluidized Bed Reactors.

Autor: Zinurov, V. E., Dmitriev, A. V., Abdullina, A. A., Salakhova, E. I., Dmitrieva, O. S.
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Zdroj: Chemical & Petroleum Engineering; Jul2023, Vol. 59 Issue 3/4, p288-295, 8p
Abstrakt: During operation of fluidized bed reactors, problems associated with capture of catalyst dust particles from the exhaust gases are encountered. A design of the separating device having arcuate components is proposed for their solution. It is shown that the ascending gas flow significantly reduces particle capture efficiency because of repeated entrainment of the separated particles. Three types of separation grids were considered for degrading the descending and ascending gas flows. It was found that it is necessary to use separation grids not only for effective channeling of trapped particles into the device bin without formation of "dead" zones, but also for generating resistance to movement of the ascending gas flow. Most effective is the grid made of longitudinal and cross V-shaped plates. The optimum gas velocity in the inlet of separating device having arcuate components is 1 m/sec, which ensures minimum abrasion wear of the structural components of the separating device in the operation process. The particle capture efficiency is 88.6% and hydraulic resistance is 43.9 Pa. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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