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Carbonization of biomass: Effect of additives on alkali metals residue, SO2 and NO emission of chars during combustion

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  • Qi, Jianhui
  • Han, Kuihua
  • Wang, Qian
  • Gao, Jie

Abstract

The effect of additives (NH4H2PO4, CaCO3 and CaO) on biomass carbonization was studied in the current paper, including residual K and Na in chars, SO2 and NO emission of different chars during combustion. Experiment was carried on a tube furnace system. The results show that, CaO and NH4H2PO4 reduce the alkali content of chars to different degree. Three additives inhibit SO2 emission from raw and carbonized biomass remarkably, and SO2 mass emission is lesser than 0.1 mg g−1. Three additives enhance NO emission at different levels, and NO mass emission is from 1.2 to 3.5 mg g−1. Both raw and carbonized biomass can be modified by some additives to achieve near zero emissions of SO2. Although the additives promote the NO release, the total emission rate (3.8–10.1%) was much lower than that of brown coal combustion, which was reported as 33.5–37.7%. Economic analysis shows that three additives are economy for industry utility. Thus the three additives are good for modifying biomass carbon to attain clean and efficient combustion.

Suggested Citation

  • Qi, Jianhui & Han, Kuihua & Wang, Qian & Gao, Jie, 2017. "Carbonization of biomass: Effect of additives on alkali metals residue, SO2 and NO emission of chars during combustion," Energy, Elsevier, vol. 130(C), pages 560-569.
    • Handle: RePEc:eee:energy:v:130:y:2017:i:c:p:560-569
    DOI: 10.1016/j.energy.2017.04.109
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    Cited by:

    1. Khiari, Besma & Jeguirim, Mejdi & Limousy, Lionel & Bennici, Simona, 2019. "Biomass derived chars for energy applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 108(C), pages 253-273.
    2. Silva, F.T.M. & Ataíde, C.H., 2019. "Valorization of eucalyptus urograndis wood via carbonization: Product yields and characterization," Energy, Elsevier, vol. 172(C), pages 509-516.
    3. Aamer Bilal Asghar & Saad Farooq & Muhammad Shahzad Khurram & Mujtaba Hussain Jaffery & Krzysztof Ejsmont, 2021. "Estimation of the Solid Circulation Rate in Circulating Fluidized Bed System Using Adaptive Neuro-Fuzzy Algorithm," Energies, MDPI, vol. 15(1), pages 1-17, December.
    4. Jianhui Qi & Haopeng Li & Qian Wang & Kuihua Han, 2021. "Combustion Characteristics, Kinetics, SO 2 and NO Release of Low-Grade Biomass Materials and Briquettes," Energies, MDPI, vol. 14(9), pages 1-13, May.
    5. Qi, Jianhui & Zhao, Jianli & Xu, Yang & Wang, Yongjia & Han, Kuihua, 2018. "Segmented heating carbonization of biomass: Yields, property and estimation of heating value of chars," Energy, Elsevier, vol. 144(C), pages 301-311.
    6. Zacharczuk, Wojciech & Andruszkiewicz, Artur & Tatarek, Andrzej & Alahmer, Ali & Alsaqoor, Sameh, 2021. "Effect of Ca-based additives on the capture of SO2 during combustion of pulverized lignite," Energy, Elsevier, vol. 231(C).
    7. Yin, Chungen, 2020. "Development in biomass preparation for suspension firing towards higher biomass shares and better boiler performance and fuel rangeability," Energy, Elsevier, vol. 196(C).
    8. Yaxin Ge & Guangyi Zhang & Jianling Zhang & Wennan Zhang & Lijie Cui, 2022. "Emission Characteristics of NO x and SO 2 during the Combustion of Antibiotic Mycelial Residue," IJERPH, MDPI, vol. 19(3), pages 1-14, January.
    9. Sun, Jin & Zhao, Bingtao & Su, Yaxin, 2019. "Advanced control of NO emission from algal biomass combustion using loaded iron-based additives," Energy, Elsevier, vol. 185(C), pages 229-238.

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    Keywords

    Biomass carbonization; Alkali metal; SO2; NO; Additive;
    All these keywords.

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