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Simulation and Optimization of Biomass Gasification Process in Fluidized Bed Coupled with Entrained-Flow Bed.

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Title: Simulation and Optimization of Biomass Gasification Process in Fluidized Bed Coupled with Entrained-Flow Bed.
Authors: Wang, Jingjing1 (AUTHOR), Liu, Zhen1,2 (AUTHOR), Zhang, Huimin1 (AUTHOR), Huang, Xin1,2 (AUTHOR), Peng, Baozai1 (AUTHOR), Chang, Liang1 (AUTHOR), Yang, Ruihan1 (AUTHOR), Li, Weiwei2 (AUTHOR) liweiwei197@126.com
Source: Energies (19961073). Jan2026, Vol. 19 Issue 1, p37. 18p.
Subjects: Biomass gasification, Fluidized bed reactors, Synthesis gas, Tar, Gasworks, Fluidization
Abstract: Biomass gasification serves as a key carbon-neutral technology. To effectively address the challenge of tar treatment during biomass gasification, the National Institute of Clean and low-carbon Energy developed a fluidized bed coupled with an entrained-flow bed. A steady-state Aspen Plus V12 model was designed to assess the compatibility between the two beds and optimize operating parameters. The model divides the process into three main zones: fluidized bed gasification, entrained-flow bed gasification, and bottom slag treatment, employing a reaction-restricted equilibrium assumption. Simulation results indicate that an increase in pressure leads to a reduction in the concentration of syngas components (CO and H2), an insignificant rise in gas low heating value (LHV), and a notable decline in cold gas efficiency (η). A higher equivalence ratio (ER) results in decreased syngas components, along with a significant reduction in both LHV and η. The introduction of carbon dioxide reduces syngas components and lowers LHV. Similarly, the addition of steam reduces the CO content of the syngas and decreases its LHV. When the fluidized bed temperature exceeds 900 °C, changes in LHV and gas yield become negligible, while variations remain minimal when the entrained-flow bed temperature exceeds 1200 °C. [ABSTRACT FROM AUTHOR]
Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Simulation and Optimization of Biomass Gasification Process in Fluidized Bed Coupled with Entrained-Flow Bed.
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Jingjing%22">Wang, Jingjing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Zhen%22">Liu, Zhen</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Huimin%22">Zhang, Huimin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huang%2C+Xin%22">Huang, Xin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Peng%2C+Baozai%22">Peng, Baozai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chang%2C+Liang%22">Chang, Liang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Ruihan%22">Yang, Ruihan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Weiwei%22">Li, Weiwei</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> liweiwei197@126.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Jan2026, Vol. 19 Issue 1, p37. 18p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Biomass+gasification%22">Biomass gasification</searchLink><br /><searchLink fieldCode="DE" term="%22Fluidized+bed+reactors%22">Fluidized bed reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Synthesis+gas%22">Synthesis gas</searchLink><br /><searchLink fieldCode="DE" term="%22Tar%22">Tar</searchLink><br /><searchLink fieldCode="DE" term="%22Gasworks%22">Gasworks</searchLink><br /><searchLink fieldCode="DE" term="%22Fluidization%22">Fluidization</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Biomass gasification serves as a key carbon-neutral technology. To effectively address the challenge of tar treatment during biomass gasification, the National Institute of Clean and low-carbon Energy developed a fluidized bed coupled with an entrained-flow bed. A steady-state Aspen Plus V12 model was designed to assess the compatibility between the two beds and optimize operating parameters. The model divides the process into three main zones: fluidized bed gasification, entrained-flow bed gasification, and bottom slag treatment, employing a reaction-restricted equilibrium assumption. Simulation results indicate that an increase in pressure leads to a reduction in the concentration of syngas components (CO and H2), an insignificant rise in gas low heating value (LHV), and a notable decline in cold gas efficiency (η). A higher equivalence ratio (ER) results in decreased syngas components, along with a significant reduction in both LHV and η. The introduction of carbon dioxide reduces syngas components and lowers LHV. Similarly, the addition of steam reduces the CO content of the syngas and decreases its LHV. When the fluidized bed temperature exceeds 900 °C, changes in LHV and gas yield become negligible, while variations remain minimal when the entrained-flow bed temperature exceeds 1200 °C. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/en19010037
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 37
    Subjects:
      – SubjectFull: Biomass gasification
        Type: general
      – SubjectFull: Fluidized bed reactors
        Type: general
      – SubjectFull: Synthesis gas
        Type: general
      – SubjectFull: Tar
        Type: general
      – SubjectFull: Gasworks
        Type: general
      – SubjectFull: Fluidization
        Type: general
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      – TitleFull: Simulation and Optimization of Biomass Gasification Process in Fluidized Bed Coupled with Entrained-Flow Bed.
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            NameFull: Wang, Jingjing
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            – D: 01
              M: 01
              Text: Jan2026
              Type: published
              Y: 2026
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