Situating the high-density circulating fluidized bed

John R. Grace; Allan S. Issangya; Dingrong Bai; Hsiaotao Bi; Jingxu Zhu

doi:10.1002/aic.690451009

Situating the high-density circulating fluidized bed

John R. Grace, Allan S. Issangya, Dingrong Bai, Hsiaotao Bi, Jingxu Zhu

Research output: Journal Publication › Article › peer-review

161 Citations (Scopus)

Abstract

Gas-solid flow in high-density circulating fluidized-bed risers differs significantly from that in conventional flow regimes, including fast fluidization and pneumatic conveying. It is shown that when there is no downward flux at the wall at high suspension densities, and hence no core/annulus structure, the flow corresponds to a dense suspension up-flow regime. This flow regime is explained, and its key properties given. A lower boundary is also proposed for this new flow regime based on available data.

Original language	English
Pages (from-to)	2108-2116
Number of pages	9
Journal	AICHE Journal
Volume	45
Issue number	10
DOIs	https://doi.org/10.1002/aic.690451009
Publication status	Published - Oct 1999
Externally published	Yes

ASJC Scopus subject areas

Biotechnology
Environmental Engineering
General Chemical Engineering

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10.1002/aic.690451009

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abstract = "Gas-solid flow in high-density circulating fluidized-bed risers differs significantly from that in conventional flow regimes, including fast fluidization and pneumatic conveying. It is shown that when there is no downward flux at the wall at high suspension densities, and hence no core/annulus structure, the flow corresponds to a dense suspension up-flow regime. This flow regime is explained, and its key properties given. A lower boundary is also proposed for this new flow regime based on available data.",

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AU - Bai, Dingrong

AU - Bi, Hsiaotao

AU - Zhu, Jingxu

PY - 1999/10

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AB - Gas-solid flow in high-density circulating fluidized-bed risers differs significantly from that in conventional flow regimes, including fast fluidization and pneumatic conveying. It is shown that when there is no downward flux at the wall at high suspension densities, and hence no core/annulus structure, the flow corresponds to a dense suspension up-flow regime. This flow regime is explained, and its key properties given. A lower boundary is also proposed for this new flow regime based on available data.

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Situating the high-density circulating fluidized bed

Abstract

ASJC Scopus subject areas

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