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Co-combustion of refuse derived fuel with Korean anthracite in a commercial circulating fluidized bed boiler

Author

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  • Lee, Jong-Min
  • Kim, Down-Won
  • Kim, Jae-Sung
  • Na, Jeong-Geol
  • Lee, See-Hoon

Abstract

The effect of co-combustion of Refuse Derived Fuel (RDF) with Korean anthracite on the combustion and environmental performance was observed in the Tonghae commercial Circulating Fluidized Bed (CFB) boiler. High contents of oxygen and CaO in RDF reduced the amount of air required for combustion and the limestone flow rate for SO2 capture in the CFB boiler, respectively. The temperature in the furnace exit increased slightly due to re-combustion of volatiles which resulted in limiting the co-combustion ratio of RDF for the CFB boiler to operate stably. With the increasing co-combustion ratio of RDF, the output voltages of electrostatic precipitator (EP), which consists of 2-channels and 5-stages collecting plates, decreased linearly. Eventually, stability of the EP could not be maintained above 5% of the RDF co-combustion ratio. The emissions of NOx, HCl and dioxin during co-combustion did not change appreciably as compared to the case when Korean anthracite was burnt alone, which were also low enough to meet Korean emissions limits. On the other hand, chlorine contents in ashes emitted from the CFB boiler increased gradually with the increasing co-combustion ratio, which implied that most of chlorines were fixed by limestone.

Suggested Citation

  • Lee, Jong-Min & Kim, Down-Won & Kim, Jae-Sung & Na, Jeong-Geol & Lee, See-Hoon, 2010. "Co-combustion of refuse derived fuel with Korean anthracite in a commercial circulating fluidized bed boiler," Energy, Elsevier, vol. 35(7), pages 2814-2818.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:7:p:2814-2818
    DOI: 10.1016/j.energy.2010.03.008
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    References listed on IDEAS

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    1. Lee, Jong-Min & Kim, Jae-Sung & Kim, Jong-Jin, 2003. "Evaluation of the 200 MWe Tonghae CFB boiler performance with cyclone modification," Energy, Elsevier, vol. 28(6), pages 575-589.
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    Cited by:

    1. Lee, Jong Min & Kim, Dong Won & Kim, Jae Sung, 2011. "Characteristics of co-combustion of anthracite with bituminous coal in a 200-MWe circulating fluidized bed boiler," Energy, Elsevier, vol. 36(9), pages 5703-5709.
    2. Małgorzata Wzorek, 2020. "Evaluating the Potential for Combustion of Biofuels in Grate Furnaces," Energies, MDPI, vol. 13(8), pages 1-15, April.
    3. Du, Shenglei & Wang, Xianhua & Shao, Jingai & Yang, Haiping & Xu, Guangfu & Chen, Hanping, 2014. "Releasing behavior of chlorine and fluorine during agricultural waste pyrolysis," Energy, Elsevier, vol. 74(C), pages 295-300.
    4. Ling, Zhongqian & Ling, Bo & Kuang, Min & Li, Zhengqi & Lu, Ye, 2017. "Comparison of airflow, coal combustion, NOx emissions, and slagging characteristics among three large-scale MBEL down-fired boilers manufactured at different times," Applied Energy, Elsevier, vol. 187(C), pages 689-705.
    5. Kalisz, Sylwester & Wejkowski, Robert & Maj, Izabella & Garbacz, Przemysław, 2023. "A novel approach to the dry desulfurization process by means of sodium bicarbonate: A full-scale study on SO2 emission and geochemistry of fly ash," Energy, Elsevier, vol. 279(C).
    6. Kopczyński, Marcin & Lasek, Janusz A. & Iluk, Andrzej & Zuwała, Jarosław, 2017. "The co-combustion of hard coal with raw and torrefied biomasses (willow (Salix viminalis), olive oil residue and waste wood from furniture manufacturing)," Energy, Elsevier, vol. 140(P1), pages 1316-1325.
    7. Mlonka-Mędrala, Agata & Dziok, Tadeusz & Magdziarz, Aneta & Nowak, Wojciech, 2021. "Composition and properties of fly ash collected from a multifuel fluidized bed boiler co-firing refuse derived fuel (RDF) and hard coal," Energy, Elsevier, vol. 234(C).
    8. Zhang, Xiaoyu & Zhu, Shujun & Zhu, Jianguo & Liu, Yuhua & Zhang, Jiahang & Hui, Jicheng & Ding, Hongliang & Cao, Xiaoyang & Lyu, Qinggang, 2023. "Preheating and combustion characteristics of anthracite under O2/N2, O2/CO2 and O2/CO2/H2O atmospheres," Energy, Elsevier, vol. 274(C).
    9. Xiaolin Chen & Junlin Xie & Shuxia Mei & Feng He, 2018. "NOx and SO 2 Emissions during Co-Combustion of RDF and Anthracite in the Environment of Precalciner," Energies, MDPI, vol. 11(2), pages 1-13, February.
    10. Ahn, Seong Yool & Eom, Seong Yong & Rhie, Young Hoon & Sung, Yon Mo & Moon, Cheor Eon & Choi, Gyung Min & Kim, Duck Jool, 2013. "Application of refuse fuels in a direct carbon fuel cell system," Energy, Elsevier, vol. 51(C), pages 447-456.
    11. Kuang, Min & Zhu, Qunyi & Ling, Zhongqian & Ti, Shuguang & Li, Zhengqi, 2017. "Improving gas/particle flow deflection and asymmetric combustion of a 600 MWe supercritical down-fired boiler by increasing its upper furnace height," Energy, Elsevier, vol. 127(C), pages 581-593.

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