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Experiences and results on a 0.8MWth oxy-fuel operation pilot-scale circulating fluidized bed

Author

Listed:
  • Tan, Y.
  • Jia, L.
  • Wu, Y.
  • Anthony, E.J.

Abstract

Oxy-fuel circulating fluidized bed combustion (CFBC) is an alternate technology to oxy-fuel pulverized combustion (PC), which has a number of advantages that can often make it a better choice for CO2 capture. This paper presents experimental results and operating experiences from a 0.8MWth pilot-scale, oxy-fuel-fired circulating fluidized bed. Test work demonstrated smooth transition between air-fired and oxy-fuel-fired operation and stable oxy-fuel operation with CO2 concentrations above 90% on a dry basis. Our experimental results also showed that limestone performance for sulfur removal is impacted by the combustion mode and that this impact depends on fuel characteristics as well as on combustion temperature. The test experiences showed that operating the pilot-scale unit over a long period under oxy-fuel mode led to enhanced corrosion due to higher sulfur concentrations in the flue gas. As demonstration projects of oxy-fuel CFB proceed in both Europe and North America, it is hoped that these tests can provide valuable data on the combustion characteristics, pollutant formation and operating experiences specific to this technology.

Suggested Citation

  • Tan, Y. & Jia, L. & Wu, Y. & Anthony, E.J., 2012. "Experiences and results on a 0.8MWth oxy-fuel operation pilot-scale circulating fluidized bed," Applied Energy, Elsevier, pages 343-347.
  • Handle: RePEc:eee:appene:v:92:y:2012:i:c:p:343-347 DOI: 10.1016/j.apenergy.2011.11.037
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    References listed on IDEAS

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    1. Liu, Hao & Shao, Yingjuan, 2010. "Predictions of the impurities in the CO2 stream of an oxy-coal combustion plant," Applied Energy, Elsevier, pages 3162-3170.
    2. Li, H. & Yan, J. & Yan, J. & Anheden, M., 2009. "Impurity impacts on the purification process in oxy-fuel combustion based CO2 capture and storage system," Applied Energy, Elsevier, pages 202-213.
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    4. Wu, Yinghai & Wang, Chunbo & Tan, Yewen & Jia, Lufei & Anthony, Edward J., 2011. "Characterization of ashes from a 100kWth pilot-scale circulating fluidized bed with oxy-fuel combustion," Applied Energy, Elsevier, pages 2940-2948.
    5. Hammond, G.P. & Akwe, S.S. Ondo & Williams, S., 2011. "Techno-economic appraisal of fossil-fuelled power generation systems with carbon dioxide capture and storage," Energy, Elsevier, vol. 36(2), pages 975-984.
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    Citations

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    Cited by:

    1. Seddighi, Sadegh, 2017. "Design of large scale oxy-fuel fluidized bed boilers: Constant thermal power and constant furnace size scenarios," Energy, Elsevier, vol. 118(C), pages 1286-1294.
    2. Duan, Lunbo & Jiang, Zhongxiao & Chen, Xiaoping & Zhao, Changsui, 2013. "Investigation on water vapor effect on direct sulfation during wet-recycle oxy-coal combustion," Applied Energy, Elsevier, vol. 108(C), pages 121-127.
    3. Singh, Ravi Inder & Kumar, Rajesh, 2016. "Current status and experimental investigation of oxy-fired fluidized bed," Renewable and Sustainable Energy Reviews, Elsevier, vol. 61(C), pages 398-420.
    4. repec:eee:appene:v:199:y:2017:i:c:p:310-322 is not listed on IDEAS
    5. de Diego, L.F. & de las Obras-Loscertales, M. & Rufas, A. & García-Labiano, F. & Gayán, P. & Abad, A. & Adánez, J., 2013. "Pollutant emissions in a bubbling fluidized bed combustor working in oxy-fuel operating conditions: Effect of flue gas recirculation," Applied Energy, Elsevier, vol. 102(C), pages 860-867.
    6. Li, Shiyuan & Xu, Mingxin & Jia, Lufei & Tan, Li & Lu, Qinggang, 2016. "Influence of operating parameters on N2O emission in O2/CO2 combustion with high oxygen concentration in circulating fluidized bed," Applied Energy, Elsevier, vol. 173(C), pages 197-209.
    7. Wang, Chang’an & Zhang, Xiaoming & Liu, Yinhe & Che, Defu, 2012. "Pyrolysis and combustion characteristics of coals in oxyfuel combustion," Applied Energy, Elsevier, vol. 97(C), pages 264-273.
    8. Gomez-Garcia, Fabrisio & Gauthier, Daniel & Flamant, Gilles, 2017. "Design and performance of a multistage fluidised bed heat exchanger for particle-receiver solar power plants with storage," Applied Energy, Elsevier, vol. 190(C), pages 510-523.
    9. repec:eee:appene:v:197:y:2017:i:c:p:203-211 is not listed on IDEAS
    10. Ramadan, Islam A. & Ibrahim, Abdelmaged H. & Abou-Arab, Tharwat W. & Rashwan, Sherif S. & Nemitallah, Medhat A. & Habib, Mohamed A., 2016. "Effects of oxidizer flexibility and bluff-body blockage ratio on flammability limits of diffusion flames," Applied Energy, Elsevier, vol. 178(C), pages 19-28.
    11. Xu, Mingxin & Li, Shiyuan & Wu, Yinghai & Jia, Lufei & Lu, Qinggang, 2017. "The characteristics of recycled NO reduction over char during oxy-fuel fluidized bed combustion," Applied Energy, Elsevier, vol. 190(C), pages 553-562.
    12. Bu, Changsheng & Liu, Daoyin & Chen, Xiaoping & Pallarès, David & Gómez-Barea, Alberto, 2014. "Ignition behavior of single coal particle in a fluidized bed under O2/CO2 and O2/N2 atmospheres: A combination of visual image and particle temperature," Applied Energy, Elsevier, vol. 115(C), pages 301-308.
    13. repec:eee:energy:v:126:y:2017:i:c:p:854-867 is not listed on IDEAS
    14. Bolea, Irene & Romeo, Luis M. & Pallarés, David, 2012. "The role of external heat exchangers in oxy-fuel circulating fluidized bed," Applied Energy, Elsevier, pages 215-223.
    15. Chi, Chung-Cheng & Lin, Ta-Hui, 2013. "Oxy-oil combustion characteristics of an existing furnace," Applied Energy, Elsevier, vol. 102(C), pages 923-930.

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    Keywords

    Oxy-fuel; Circulating fluidized bed; Combustion; Sulfur removal; CO2 capture;

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