Effects of limestone calcination on the gasification processes in a BFB coal gasifier

L. M. Armstrong; S. Gu; K. H. Luo

doi:10.1016/j.cej.2011.01.102

Effects of limestone calcination on the gasification processes in a BFB coal gasifier

L. M. Armstrong, S. Gu^*, K. H. Luo

^*Corresponding author for this work

Department of Civil Engineering

University of Southampton

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

An Eulerian-Eulerian computational fluid dynamics (CFD) model of the gasification processes in a coal bubbling fluidised bed (BFB) is presented incorporating the devolatilisation, heterogeneous, homogeneous reactions and limestone calcination. The model considers separate phases for the coal, limestone and char and is carried out for different experimental conditions taken from the literature. The results of the exiting gas compositions have been averaged over time and validated with experimental data. The hydrodynamic behaviour as well as temperature and reaction distributions within the bed is presented. The impact of limestone calcination on the gaseous composition is observed.

Original language	English
Pages (from-to)	848-860
Number of pages	13
Journal	Chemical Engineering Journal
Volume	168
Issue number	2
DOIs	https://doi.org/10.1016/j.cej.2011.01.102
Publication status	Published - 1 Apr 2011

Keywords

CFD
Fluidised bed
Gasification
Limestone calcination
Multiphase

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10.1016/j.cej.2011.01.102

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title = "Effects of limestone calcination on the gasification processes in a BFB coal gasifier",

abstract = "An Eulerian-Eulerian computational fluid dynamics (CFD) model of the gasification processes in a coal bubbling fluidised bed (BFB) is presented incorporating the devolatilisation, heterogeneous, homogeneous reactions and limestone calcination. The model considers separate phases for the coal, limestone and char and is carried out for different experimental conditions taken from the literature. The results of the exiting gas compositions have been averaged over time and validated with experimental data. The hydrodynamic behaviour as well as temperature and reaction distributions within the bed is presented. The impact of limestone calcination on the gaseous composition is observed.",

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author = "Armstrong, {L. M.} and S. Gu and Luo, {K. H.}",

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AU - Gu, S.

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N2 - An Eulerian-Eulerian computational fluid dynamics (CFD) model of the gasification processes in a coal bubbling fluidised bed (BFB) is presented incorporating the devolatilisation, heterogeneous, homogeneous reactions and limestone calcination. The model considers separate phases for the coal, limestone and char and is carried out for different experimental conditions taken from the literature. The results of the exiting gas compositions have been averaged over time and validated with experimental data. The hydrodynamic behaviour as well as temperature and reaction distributions within the bed is presented. The impact of limestone calcination on the gaseous composition is observed.

AB - An Eulerian-Eulerian computational fluid dynamics (CFD) model of the gasification processes in a coal bubbling fluidised bed (BFB) is presented incorporating the devolatilisation, heterogeneous, homogeneous reactions and limestone calcination. The model considers separate phases for the coal, limestone and char and is carried out for different experimental conditions taken from the literature. The results of the exiting gas compositions have been averaged over time and validated with experimental data. The hydrodynamic behaviour as well as temperature and reaction distributions within the bed is presented. The impact of limestone calcination on the gaseous composition is observed.

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KW - Multiphase

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Effects of limestone calcination on the gasification processes in a BFB coal gasifier

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Keywords

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