Effect of the blend ratio on the co-gasification of biomass and coal in a bubbling fluidized bed with CFD-DEM

Juhui Chen; Shilin Zhong; Dan Li; Chenxi Zhao; Changliang Han; Guangbin Yu; Meiqi Song

doi:10.1016/j.ijhydene.2022.05.075

Effect of the blend ratio on the co-gasification of biomass and coal in a bubbling fluidized bed with CFD-DEM

Juhui Chen^*
, Shilin Zhong
, Dan Li^*
, Chenxi Zhao
, Changliang Han
, Guangbin Yu
, Meiqi Song

^*Corresponding author for this work

Harbin University of Science and Technology

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

27 Scopus citations

Abstract

Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) is employed to describe the co-gasification of biomass and coal in bubbling fluidized bed coupled with chemical reaction kinetic model. Six sets of simulations are set up to study the effect of blend ratio on the amount of gasification products compared with experiments. The calorific value of syngas, carbon conversion efficiency, hydrogen conversion efficiency and cold gas efficiency are calculated. Compared with the separate gasification, the hydrogen efficiency and cold gas efficiency in the co-gasification are enhanced. When biomass accounts for 75%, the contents of CO gas and CO₂ gas are the lowest, while the contents of H₂ gas and CH₄ gas are the highest. The high calorific value, carbon conversion efficiency and hydrogen conversion efficiency reach the maximum under this blend ratio. The cold gas efficiency is not obviously affected by the blend ratio, and reaches the maximum when the biomass content is 50%.

Original language	English
Pages (from-to)	22328-22339
Number of pages	12
Journal	International Journal of Hydrogen Energy
Volume	47
Issue number	53
DOIs	https://doi.org/10.1016/j.ijhydene.2022.05.075
State	Published - 26 Jun 2022
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Biomass/coal co-gasification
Blend ratio
Bubbling fluidized bed
CFD-DEM

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10.1016/j.ijhydene.2022.05.075

Cite this

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title = "Effect of the blend ratio on the co-gasification of biomass and coal in a bubbling fluidized bed with CFD-DEM",

abstract = "Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) is employed to describe the co-gasification of biomass and coal in bubbling fluidized bed coupled with chemical reaction kinetic model. Six sets of simulations are set up to study the effect of blend ratio on the amount of gasification products compared with experiments. The calorific value of syngas, carbon conversion efficiency, hydrogen conversion efficiency and cold gas efficiency are calculated. Compared with the separate gasification, the hydrogen efficiency and cold gas efficiency in the co-gasification are enhanced. When biomass accounts for 75\%, the contents of CO gas and CO2 gas are the lowest, while the contents of H2 gas and CH4 gas are the highest. The high calorific value, carbon conversion efficiency and hydrogen conversion efficiency reach the maximum under this blend ratio. The cold gas efficiency is not obviously affected by the blend ratio, and reaches the maximum when the biomass content is 50\%.",

keywords = "Biomass/coal co-gasification, Blend ratio, Bubbling fluidized bed, CFD-DEM",

author = "Juhui Chen and Shilin Zhong and Dan Li and Chenxi Zhao and Changliang Han and Guangbin Yu and Meiqi Song",

note = "Publisher Copyright: {\textcopyright} 2022 Hydrogen Energy Publications LLC",

year = "2022",

month = jun,

day = "26",

doi = "10.1016/j.ijhydene.2022.05.075",

language = "英语",

volume = "47",

pages = "22328--22339",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

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TY - JOUR

T1 - Effect of the blend ratio on the co-gasification of biomass and coal in a bubbling fluidized bed with CFD-DEM

AU - Chen, Juhui

AU - Zhong, Shilin

AU - Li, Dan

AU - Zhao, Chenxi

AU - Han, Changliang

AU - Yu, Guangbin

AU - Song, Meiqi

PY - 2022/6/26

Y1 - 2022/6/26

N2 - Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) is employed to describe the co-gasification of biomass and coal in bubbling fluidized bed coupled with chemical reaction kinetic model. Six sets of simulations are set up to study the effect of blend ratio on the amount of gasification products compared with experiments. The calorific value of syngas, carbon conversion efficiency, hydrogen conversion efficiency and cold gas efficiency are calculated. Compared with the separate gasification, the hydrogen efficiency and cold gas efficiency in the co-gasification are enhanced. When biomass accounts for 75%, the contents of CO gas and CO2 gas are the lowest, while the contents of H2 gas and CH4 gas are the highest. The high calorific value, carbon conversion efficiency and hydrogen conversion efficiency reach the maximum under this blend ratio. The cold gas efficiency is not obviously affected by the blend ratio, and reaches the maximum when the biomass content is 50%.

AB - Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) is employed to describe the co-gasification of biomass and coal in bubbling fluidized bed coupled with chemical reaction kinetic model. Six sets of simulations are set up to study the effect of blend ratio on the amount of gasification products compared with experiments. The calorific value of syngas, carbon conversion efficiency, hydrogen conversion efficiency and cold gas efficiency are calculated. Compared with the separate gasification, the hydrogen efficiency and cold gas efficiency in the co-gasification are enhanced. When biomass accounts for 75%, the contents of CO gas and CO2 gas are the lowest, while the contents of H2 gas and CH4 gas are the highest. The high calorific value, carbon conversion efficiency and hydrogen conversion efficiency reach the maximum under this blend ratio. The cold gas efficiency is not obviously affected by the blend ratio, and reaches the maximum when the biomass content is 50%.

KW - Biomass/coal co-gasification

KW - Blend ratio

KW - Bubbling fluidized bed

KW - CFD-DEM

UR - https://www.scopus.com/pages/publications/85131406702

U2 - 10.1016/j.ijhydene.2022.05.075

DO - 10.1016/j.ijhydene.2022.05.075

M3 - 文章

AN - SCOPUS:85131406702

SN - 0360-3199

VL - 47

SP - 22328

EP - 22339

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 53

ER -

Effect of the blend ratio on the co-gasification of biomass and coal in a bubbling fluidized bed with CFD-DEM

Abstract

UN SDGs

Keywords

Access to Document

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