Analysis of the Overall Pressure Balance around a High-Density Circulating Fluidized Bed

D. Bai; A. S. Issangya; J. X. Zhu; J. R. Grace

doi:10.1021/ie970011+

Analysis of the Overall Pressure Balance around a High-Density Circulating Fluidized Bed

D. Bai, A. S. Issangya, J. X. Zhu, J. R. Grace

Research output: Journal Publication › Article › peer-review

49 Citations (Scopus)

Abstract

A steady-state model is presented for predicting the flow behavior of a novel high-density circulating fluidized-bed coupled dual-loop system. The model allows the maximum achievable solids flux for given steady-state operating conditions to be predicted. The effects of superficial gas velocity, solids inventory, particle diameter and density, and the diameters of both risers and both downcomers as well as the position of the solids control valve are all predicted. Predictions are shown to be in good agreement with experimental values for solids circulation rates as high as 420 kg/m² s for FCC particles in a dual-loop system. Parametric studies illustrate the usefulness of the approach for optimizing the operating conditions of complex gas-solid systems.

Original language	English
Pages (from-to)	3898-3903
Number of pages	6
Journal	Industrial and Engineering Chemistry Research
Volume	36
Issue number	9
DOIs	https://doi.org/10.1021/ie970011+
Publication status	Published - Sept 1997
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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title = "Analysis of the Overall Pressure Balance around a High-Density Circulating Fluidized Bed",

abstract = "A steady-state model is presented for predicting the flow behavior of a novel high-density circulating fluidized-bed coupled dual-loop system. The model allows the maximum achievable solids flux for given steady-state operating conditions to be predicted. The effects of superficial gas velocity, solids inventory, particle diameter and density, and the diameters of both risers and both downcomers as well as the position of the solids control valve are all predicted. Predictions are shown to be in good agreement with experimental values for solids circulation rates as high as 420 kg/m2 s for FCC particles in a dual-loop system. Parametric studies illustrate the usefulness of the approach for optimizing the operating conditions of complex gas-solid systems.",

author = "D. Bai and Issangya, {A. S.} and Zhu, {J. X.} and Grace, {J. R.}",

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AU - Bai, D.

AU - Issangya, A. S.

AU - Zhu, J. X.

AU - Grace, J. R.

PY - 1997/9

Y1 - 1997/9

N2 - A steady-state model is presented for predicting the flow behavior of a novel high-density circulating fluidized-bed coupled dual-loop system. The model allows the maximum achievable solids flux for given steady-state operating conditions to be predicted. The effects of superficial gas velocity, solids inventory, particle diameter and density, and the diameters of both risers and both downcomers as well as the position of the solids control valve are all predicted. Predictions are shown to be in good agreement with experimental values for solids circulation rates as high as 420 kg/m2 s for FCC particles in a dual-loop system. Parametric studies illustrate the usefulness of the approach for optimizing the operating conditions of complex gas-solid systems.

AB - A steady-state model is presented for predicting the flow behavior of a novel high-density circulating fluidized-bed coupled dual-loop system. The model allows the maximum achievable solids flux for given steady-state operating conditions to be predicted. The effects of superficial gas velocity, solids inventory, particle diameter and density, and the diameters of both risers and both downcomers as well as the position of the solids control valve are all predicted. Predictions are shown to be in good agreement with experimental values for solids circulation rates as high as 420 kg/m2 s for FCC particles in a dual-loop system. Parametric studies illustrate the usefulness of the approach for optimizing the operating conditions of complex gas-solid systems.

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JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 9

ER -

Analysis of the Overall Pressure Balance around a High-Density Circulating Fluidized Bed

Abstract

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