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Thermochemical conversion of brown coal and biomass in a pressurised fluidised bed gasifier with hot gas filtration using ceramic channel filters: measurements and gasifier modelling

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  • de Jong, W.
  • Ünal, Ö.
  • Andries, J.
  • Hein, K. R. G.
  • Spliethoff, H.

Abstract

Biomass (wood and Miscanthus pellets) and Rhenish brown-coal were gasified using a 1.5 MWth (max.) pressurised fluidised bed gasification (PFBG) installation. NOx precursor and tar emissions were studied by varying process parameters like the fuel type, pressure, temperature and air factor. Carbon conversions were well above 80%. Fuel-nitrogen conversion into NH3 was mostly above ca. 50%. Fuel-nitrogen conversion into HCN was significantly lower. Results were in-line with comparable investigations with bottom feeding. Measurements of the gas composition for Miscanthus gasification were compared with a steady-state model based on elementary reaction chemistry and heterogeneous gas-char reactions related to the emission of nitrogen species. A flash pyrolysis model (FG-DVC-biomass version) was applied to determine the initial yields. Measurements and model simulation results were in reasonably good agreement.

Suggested Citation

  • de Jong, W. & Ünal, Ö. & Andries, J. & Hein, K. R. G. & Spliethoff, H., 2003. "Thermochemical conversion of brown coal and biomass in a pressurised fluidised bed gasifier with hot gas filtration using ceramic channel filters: measurements and gasifier modelling," Applied Energy, Elsevier, vol. 74(3-4), pages 425-437, March.
    • Handle: RePEc:eee:appene:v:74:y:2003:i:3-4:p:425-437
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    Citations

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    Cited by:

    1. Ren, Qiangqiang & Zhao, Changsui, 2013. "NOx and N2O precursors (NH3 and HCN) from biomass pyrolysis: interaction between amino acid and mineral matter," Applied Energy, Elsevier, vol. 112(C), pages 170-174.
    2. Sun, Zhi-Ao & Jin, Bao-Sheng & Zhang, Ming-Yao & Liu, Ren-Ping & Zhang, Yong, 2008. "Experimental study on cotton stalk combustion in a circulating fluidized bed," Applied Energy, Elsevier, vol. 85(11), pages 1027-1040, November.
    3. Li, Fenghai & Li, Zhenzhu & Huang, Jiejie & Fang, Yitian, 2014. "Understanding mineral behaviors during anthracite fluidized-bed gasification based on slag characteristics," Applied Energy, Elsevier, vol. 131(C), pages 279-287.
    4. Xu, Shisen & Ren, Yongqiang & Wang, Baomin & Xu, Yue & Chen, Liang & Wang, Xiaolong & Xiao, Tiancun, 2014. "Development of a novel 2-stage entrained flow coal dry powder gasifier," Applied Energy, Elsevier, vol. 113(C), pages 318-323.
    5. Font Palma, Carolina, 2013. "Modelling of tar formation and evolution for biomass gasification: A review," Applied Energy, Elsevier, vol. 111(C), pages 129-141.
    6. Han, Long & Wang, Qinhui & Luo, Zhongyang & Rong, Nai & Deng, Guangyi, 2013. "H2 rich gas production via pressurized fluidized bed gasification of sawdust with in situ CO2 capture," Applied Energy, Elsevier, vol. 109(C), pages 36-43.
    7. Li, Guangyu & Xu, Shisen & Zhao, Xuebin & Sun, Ruijin & Wang, Chang’an & Liu, Kang & Mao, Qisen & Che, Defu, 2020. "Investigation of chemical composition and morphology of ash deposition in syngas cooler of an industrialized two-stage entrained-flow coal gasifier," Energy, Elsevier, vol. 194(C).
    8. Broer, Karl M. & Brown, Robert C., 2015. "The role of char and tar in determining the gas-phase partitioning of nitrogen during biomass gasification," Applied Energy, Elsevier, vol. 158(C), pages 474-483.
    9. Ud Din, Zia & Zainal, Z.A., 2016. "Biomass integrated gasification–SOFC systems: Technology overview," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 1356-1376.
    10. Al-attab, K.A. & Zainal, Z.A., 2015. "Externally fired gas turbine technology: A review," Applied Energy, Elsevier, vol. 138(C), pages 474-487.
    11. Al-attab, K.A. & Zainal, Z.A., 2018. "Micro gas turbine running on naturally aspirated syngas: An experimental investigation," Renewable Energy, Elsevier, vol. 119(C), pages 210-216.

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