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Emissions from a conical FBC fired with a biomass fuel

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  • Kouprianov, V. I.
  • Permchart, W.

Abstract

The results of experimental tests conducted on a conical fluidised bed combustor (FBC), firing mixed sawdust of some Thai woods, are discussed. The concentration profiles for major gaseous emissions (CO, NOx and CO2), as well as the temperature and O2 profiles along the combustor height, were obtained for various operating conditions (fuel feed rate and excess air) for three "fixed" bed heights (20, 30 and 40 cm). The influence of fuel quality (through varying the fuel's moisture content) on the formation of gaseous emissions was also studied. Both CO and NOx axial profiles were found to have an extreme (maximum) in the active combustion zone. The effects of FBC load and excess air, as well as fuel moisture, on the COmax were found to be very strong. The NOx,max was less affected by the combustion conditions, approaching 1.5-3 times the NOx values at the combustor outlet. The influence of the sand's bed height on the rate of gaseous emissions was found to be minor. The dependencies of the CO and NOx emissions (i.e. concentrations in the waste flue gas) on the FBC operating conditions are shown for different values of fuel's moisture content.

Suggested Citation

  • Kouprianov, V. I. & Permchart, W., 2003. "Emissions from a conical FBC fired with a biomass fuel," Applied Energy, Elsevier, vol. 74(3-4), pages 383-392, March.
    • Handle: RePEc:eee:appene:v:74:y:2003:i:3-4:p:383-392
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    References listed on IDEAS

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    1. Bhattacharya, S.C. & Abdul Salam, P. & Sharma, Mahen, 2000. "Emissions from biomass energy use in some selected Asian countries," Energy, Elsevier, vol. 25(2), pages 169-188.
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    1. Elmay, Yassine & Jeguirim, Mejdi & Dorge, Sophie & Trouvé, Gwenaëlle & Said, Rachid, 2014. "Evaluation of date palm residues combustion in fixed bed laboratory reactor: A comparison with sawdust behaviour," Renewable Energy, Elsevier, vol. 62(C), pages 209-215.
    2. Ninduangdee, Pichet & Kuprianov, Vladimir I., 2016. "A study on combustion of oil palm empty fruit bunch in a fluidized bed using alternative bed materials: Performance, emissions, and time-domain changes in the bed condition," Applied Energy, Elsevier, vol. 176(C), pages 34-48.
    3. Arromdee, Porametr & Kuprianov, Vladimir I., 2012. "Combustion of peanut shells in a cone-shaped bubbling fluidized-bed combustor using alumina as the bed material," Applied Energy, Elsevier, vol. 97(C), pages 470-482.
    4. Yoonah Jeong & Jae-Sung Kim & Ye-Eun Lee & Dong-Chul Shin & Kwang-Ho Ahn & Jinhong Jung & Kyeong-Ho Kim & Min-Jong Ku & Seung-Mo Kim & Chung-Hwan Jeon & I-Tae Kim, 2023. "Investigation and Optimization of Co-Combustion Efficiency of Food Waste Biochar and Coal," Sustainability, MDPI, vol. 15(19), pages 1-12, October.
    5. Kuprianov, Vladimir I. & Kaewklum, Rachadaporn & Chakritthakul, Songpol, 2011. "Effects of operating conditions and fuel properties on emission performance and combustion efficiency of a swirling fluidized-bed combustor fired with a biomass fuel," Energy, Elsevier, vol. 36(4), pages 2038-2048.
    6. Kuprianov, Vladimir I. & Kaewklum, Rachadaporn & Sirisomboon, Kasama & Arromdee, Porametr & Chakritthakul, Songpol, 2010. "Combustion and emission characteristics of a swirling fluidized-bed combustor burning moisturized rice husk," Applied Energy, Elsevier, vol. 87(9), pages 2899-2906, September.

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