Validation and Application of a Kinetic Model for Downdraft Biomass Gasification Simulation

Joseph D. Smith; Anand Alembath; Haider Al-Rubaye; Jia Yu; Xi Gao; Hassan Golpour

doi:10.1002/ceat.201900304

Validation and Application of a Kinetic Model for Downdraft Biomass Gasification Simulation

Joseph D. Smith^*, Anand Alembath, Haider Al-Rubaye, Jia Yu, Xi Gao, Hassan Golpour

^*Corresponding author for this work

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

35 Scopus citations

Abstract

Biomass gasification is widely recognized as an effective method to obtain renewable energy. To accurately predict the syngas and tar compositions is a challenge. A chemical reaction kinetics model based on comprehensive gasification kinetics is proposed to simulate downdraft biomass gasification. The kinetic model is validated by direct comparison to experimental results of two downdraft gasifiers available in the literature and is found to be more accurate than the widely used Gibbs energy-minimizing model (GEM model). The kinetic model is then applied to investigate the effects of equivalence ratio (ER), gasification temperature, biomass moisture content, and biomass composition on syngas and tar production. Accurate water-gas shift and CO shift reaction kinetics are found critical to achieve good agreement with experimental results.

Original language	English
Pages (from-to)	2505-2519
Number of pages	15
Journal	Chemical Engineering and Technology
Volume	42
Issue number	12
DOIs	https://doi.org/10.1002/ceat.201900304
State	Published - 1 Dec 2019
Externally published	Yes

Keywords

Biomass gasification
Downdraft gasifier
Gasification
Reaction kinetics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/ceat.201900304

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title = "Validation and Application of a Kinetic Model for Downdraft Biomass Gasification Simulation",

abstract = "Biomass gasification is widely recognized as an effective method to obtain renewable energy. To accurately predict the syngas and tar compositions is a challenge. A chemical reaction kinetics model based on comprehensive gasification kinetics is proposed to simulate downdraft biomass gasification. The kinetic model is validated by direct comparison to experimental results of two downdraft gasifiers available in the literature and is found to be more accurate than the widely used Gibbs energy-minimizing model (GEM model). The kinetic model is then applied to investigate the effects of equivalence ratio (ER), gasification temperature, biomass moisture content, and biomass composition on syngas and tar production. Accurate water-gas shift and CO shift reaction kinetics are found critical to achieve good agreement with experimental results.",

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AU - Smith, Joseph D.

AU - Alembath, Anand

AU - Al-Rubaye, Haider

AU - Yu, Jia

AU - Gao, Xi

AU - Golpour, Hassan

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Biomass gasification is widely recognized as an effective method to obtain renewable energy. To accurately predict the syngas and tar compositions is a challenge. A chemical reaction kinetics model based on comprehensive gasification kinetics is proposed to simulate downdraft biomass gasification. The kinetic model is validated by direct comparison to experimental results of two downdraft gasifiers available in the literature and is found to be more accurate than the widely used Gibbs energy-minimizing model (GEM model). The kinetic model is then applied to investigate the effects of equivalence ratio (ER), gasification temperature, biomass moisture content, and biomass composition on syngas and tar production. Accurate water-gas shift and CO shift reaction kinetics are found critical to achieve good agreement with experimental results.

AB - Biomass gasification is widely recognized as an effective method to obtain renewable energy. To accurately predict the syngas and tar compositions is a challenge. A chemical reaction kinetics model based on comprehensive gasification kinetics is proposed to simulate downdraft biomass gasification. The kinetic model is validated by direct comparison to experimental results of two downdraft gasifiers available in the literature and is found to be more accurate than the widely used Gibbs energy-minimizing model (GEM model). The kinetic model is then applied to investigate the effects of equivalence ratio (ER), gasification temperature, biomass moisture content, and biomass composition on syngas and tar production. Accurate water-gas shift and CO shift reaction kinetics are found critical to achieve good agreement with experimental results.

KW - Biomass gasification

KW - Downdraft gasifier

KW - Gasification

KW - Reaction kinetics

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DO - 10.1002/ceat.201900304

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Validation and Application of a Kinetic Model for Downdraft Biomass Gasification Simulation

Abstract

Keywords

UN SDGs

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