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A two-stage circulated fluidized bed process to minimize tar generation of biomass gasification for fuel gas production

Author

Listed:
  • Wang, Chao
  • Zhu, Lianfeng
  • Zhang, Mengjuan
  • Han, Zhennan
  • Jia, Xin
  • Bai, Dingrong
  • Duo, Wenli
  • Bi, Xiaotao
  • Abudula, Abuliti
  • Guan, Guoqing
  • Xu, Guangwen

Abstract

This study tested a two-stage circulated fluidized bed process consisting of a downer for pyrolysis of biomass and a riser for char gasification and tar removal to produce fuel gas containing tar below 100 mg/Nm3 from pine chips using steam-oxygen (not N2-oxygen) as the agent. A pilot facility treating 15 kg/h biomass was run at different equivalent ratios (ERs) and steam-to-biomass ratios (S/Bs). Under the typical conditions of S/B = 0.15 and ER = 0.3, the produced fuel gas contained (in volume) 21.64% CO, 21.97% CO2, 15.34% H2, 18.59% CH4, 1.49% CnHm and 1.83 g/Nm3db tar. A long-tern running of the pilot pant realized a tar content low as 95.5 mg/Nm3db in the produced gas. These results thus well verified the technology feasibility for low-tar biomass fuel production via the two-stage circulated fluidized bed steam-oxygen gasification.

Suggested Citation

  • Wang, Chao & Zhu, Lianfeng & Zhang, Mengjuan & Han, Zhennan & Jia, Xin & Bai, Dingrong & Duo, Wenli & Bi, Xiaotao & Abudula, Abuliti & Guan, Guoqing & Xu, Guangwen, 2022. "A two-stage circulated fluidized bed process to minimize tar generation of biomass gasification for fuel gas production," Applied Energy, Elsevier, vol. 323(C).
    • Handle: RePEc:eee:appene:v:323:y:2022:i:c:s0306261922009412
    DOI: 10.1016/j.apenergy.2022.119639
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    References listed on IDEAS

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    2. Liu, Lingqin & Chen, Guo & Huang, Yaji & Liu, Changqi & Wang, Xinye & Yu, Mengzhu, 2025. "Investigation of rice straw gasification in a two-stage fluidized bed gasifier," Energy, Elsevier, vol. 331(C).
    3. Marco Mancini & Andreas Schwabauer, 2023. "On the Thermal Stability of a Counter-Current Fixed-Bed Gasifier," Energies, MDPI, vol. 16(9), pages 1-36, April.
    4. Li, Jishuo & Wang, Tie & Hao, Tengteng & Yao, Xiwen & Xu, Kaili & Liu, Jia, 2025. "Application of biochar catalysts in tar catalytic reforming: A review on preparation, modification, deactivation, and regeneration," Energy, Elsevier, vol. 317(C).
    5. Qimei Chen & Yurong Gou & Tangrong Wang & Pengbo Liu & Jianguo Zhu, 2024. "The Evolutionary Path and Emerging Trends of Circulating Fluidized Bed Technology: An Integrated Analysis through Bibliometric Assessment and Data Visualization," Energies, MDPI, vol. 17(14), pages 1-19, July.
    6. Hortência E. P. Santana & Meirielly Jesus & Joana Santos & Ana Cristina Rodrigues & Preciosa Pires & Denise S. Ruzene & Isabelly P. Silva & Daniel P. Silva, 2025. "Lignocellulosic Biomass Gasification: Perspectives, Challenges, and Methods for Tar Elimination," Sustainability, MDPI, vol. 17(5), pages 1-42, February.
    7. Wu, Yan & Yu, Yue & Wang, Yi & Pan, Xuwei & Shi, Wenjing & Huang, Yingjie & Liao, Yang & Yang, Yueyue & Zuo, Xinyu, 2025. "The effect of cyclic catalytic pyrolysis system on the co-pyrolysis products of sewage sludge and chicken manure, focusing on the yield and quality of syngas," Energy, Elsevier, vol. 314(C).
    8. Yang, Dongtai & Li, Sheng & He, Song, 2024. "Zero/negative carbon emission coal and biomass staged co-gasification power generation system via biomass heating," Applied Energy, Elsevier, vol. 357(C).

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