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A Numerical Simulation and Experimental Study of Fluidization Characteristics of a Bubbling Fluidized Bed in Biomass Gasification

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Listed:
  • Na Gao

    (School of Electrical Engineering, Guangzhou City University of Technology, Guangzhou 510800, China
    Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Kang Zhu

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Shiwen Fang

    (College of Mechanical and Electrical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China)

  • Lisheng Deng

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Yan Lin

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Zhen Huang

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Jun Li

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Hongyu Huang

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy, Guangzhou 510640, China)

Abstract

Traditional fossil energy sources still dominate the world energy structure. And fully utilizing biomass is a viable approach for energy transition. A bubbling fluidized bed has better heat and mass transfer, while particle agglomeration limits the development of its industrial application. In this paper, two-phase flow characteristics of a bubbling fluidized bed are investigated by combining numerical simulations and fluidized bed gasification experiments. Numerical simulations found that the bed fluidization height reached twice the initial fluidization height at the 0.054 m initial fluidization height with uniform particle distribution. Fluidized bed gasification experiments found that syngas yield increased with increasing temperature. The carbon conversion efficiency reached 79.3% and the effective gas production was 0.64 m 3 /kg at 850 °C. In addition, when the water vapor concentration reached 15%, the carbon conversion efficiency and effective gas production reached the maximum values of 86.01% and 0.81 m 3 /kg, respectively.

Suggested Citation

  • Na Gao & Kang Zhu & Shiwen Fang & Lisheng Deng & Yan Lin & Zhen Huang & Jun Li & Hongyu Huang, 2024. "A Numerical Simulation and Experimental Study of Fluidization Characteristics of a Bubbling Fluidized Bed in Biomass Gasification," Energies, MDPI, vol. 17(10), pages 1-13, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:10:p:2302-:d:1391935
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    References listed on IDEAS

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    1. Gokon, Nobuyuki & Kumaki, Satoshi & Miyaguchi, Yosuke & Bellan, Selvan & Kodama, Tatsuya & Cho, Hyunseok, 2019. "Development of a 5kWth internally circulating fluidized bed reactor containing quartz sand for continuously-fed coal-coke gasification and a beam-down solar concentrating system," Energy, Elsevier, vol. 166(C), pages 1-16.
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    Cited by:

    1. Xiangli Zuo & Huawei Jiang & Tianyu Gao & Man Zhang & Hairui Yang & Tuo Zhou, 2025. "Generation Characteristics of Gas Products in Fluidized Bed Gasification of Wood Pellets Under Oxygen-Enriched Conditions and Their Effects on Methanol Synthesis," Energies, MDPI, vol. 18(5), pages 1-22, March.

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