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Investigation on the fusion characterization and melting kinetics of ashes from co-firing of anthracite and pine sawdust

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  • Yao, Xiwen
  • Zhou, Haodong
  • Xu, Kaili
  • Xu, Qingwei
  • Li, Li

Abstract

Co-firing of biomass and coal adds further complexity to variations in ash fusion temperature (AFT), which is regarded as a key parameter reflecting ash agglomerations. This study is focused on evaluating the ash fusion behaviour and kinetics of blends of pine sawdust (PS) and Jincheng anthracite (JC). The ash properties, ash transformation and evolution behaviours during the co-firing were determined. The AFT variations of JC/PS blends did not show a linear variation with a rising biomass ratio. The PS addition promoted the reaction of potassium with quartz to form muscovite, leading to a reduction of arcanite. As the ashing temperature was elevated, the most perceptible effect was the increasing agglomerate size due to adhesion of fine powders. For a given temperature, with a rising PS ratio, the total weight loss, maximum weight loss rate and the exothermic peak distinctly increased, and their relevant peaks shifted to a higher temperature zone. Herein, for different blends, the blending ratio of 30 wt% JC and 70 wt% PS was suggested as optimal for preventing ash-related problems. The ash fusion of blends requires less energy than pure ash at a certain temperature, which can be explained in terms of first-order-reaction with Arrhenius theory.

Suggested Citation

  • Yao, Xiwen & Zhou, Haodong & Xu, Kaili & Xu, Qingwei & Li, Li, 2020. "Investigation on the fusion characterization and melting kinetics of ashes from co-firing of anthracite and pine sawdust," Renewable Energy, Elsevier, vol. 145(C), pages 835-846.
  • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:835-846
    DOI: 10.1016/j.renene.2019.06.087
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    Cited by:

    1. Yao, Xiwen & Zhou, Haodong & Xu, Keqiang & Liu, Qinghua & Xu, Kaili, 2024. "Understanding impacts of introducing CO2 in N2 and operation conditions on physicochemical property and fusion behaviour of solid products during thermal decomposition of corn stalks," Renewable Energy, Elsevier, vol. 221(C).
    2. Zhang, Heng & Hao, Zhenhua & Li, Junguo & Yang, Xin & Wang, Zhiqing & Liu, Zheyu & Huang, Jiejie & Zhang, Yongqi & Fang, Yitian, 2021. "Effect of coal ash additive on potassium fixation and melting behaviors of the mixture under simulated biomass gasification condition," Renewable Energy, Elsevier, vol. 168(C), pages 806-814.
    3. Yao, Xiwen & Zhao, Zhicheng & Li, Jishuo & Zhang, Bohan & Zhou, Haodong & Xu, Kaili, 2020. "Experimental investigation of physicochemical and slagging characteristics of inorganic constituents in ash residues from gasification of different herbaceous biomass," Energy, Elsevier, vol. 198(C).
    4. Yao, Xiwen & Zhao, Zhicheng & Xu, Kaili & Zhou, Haodong, 2020. "Determination of ash forming characteristics and fouling/slagging behaviours during gasification of masson pine in a fixed-bed gasifier," Renewable Energy, Elsevier, vol. 160(C), pages 1420-1430.
    5. Reinmöller, Markus & Schreiner, Marcus & Laabs, Marcel & Scharm, Christoph & Yao, Zhitong & Guhl, Stefan & Neuroth, Manuela & Meyer, Bernd & Gräbner, Martin, 2023. "Formation and transformation of mineral phases in biomass ashes and evaluation of the feedstocks for application in high-temperature processes," Renewable Energy, Elsevier, vol. 210(C), pages 627-639.
    6. Zhou, Chunbao & Zhang, Yingwen & Liu, Yang & Deng, Zeyu & Li, Xiangtong & Wang, Long & Dai, Jianjun & Song, Yongmeng & Jiang, Zhihui & Qu, Junshen & Siyal, Asif Ali, 2021. "Co-pyrolysis of textile dyeing sludge and red wood waste in a continuously operated auger reactor under microwave irradiation," Energy, Elsevier, vol. 218(C).
    7. Yao, Xiwen & Zhou, Haodong & Xu, Kaili & Chen, Shoukun & Ge, Ji & Xu, Qingwei, 2020. "Systematic study on ash transformation behaviour and thermal kinetic characteristics during co-firing of biomass with high ratios of bituminous coal," Renewable Energy, Elsevier, vol. 147(P1), pages 1453-1468.
    8. Yao, Xiwen & Zhao, Zhicheng & Chen, Shoukun & Zhou, Haodong & Xu, Kaili, 2020. "Migration and transformation behaviours of ash residues from a typical fixed-bed gasification station for biomass syngas production in China," Energy, Elsevier, vol. 201(C).
    9. Yao, Xiwen & Zheng, Yan & Zhou, Haodong & Xu, Kaili & Xu, Qingwei & Li, Li, 2020. "Effects of biomass blending, ashing temperature and potassium addition on ash sintering behaviour during co-firing of pine sawdust with a Chinese anthracite," Renewable Energy, Elsevier, vol. 147(P1), pages 2309-2320.
    10. Wang, Qian & Han, Kuihua & Wang, Peifu & Li, Shijie & Zhang, Mingyang, 2020. "Influence of additive on ash and combustion characteristics during biomass combustion under O2/CO2 atmosphere," Energy, Elsevier, vol. 195(C).
    11. Hariana, & Putra, Hanafi Prida & Prabowo, & Hilmawan, Edi & Darmawan, Arif & Mochida, Keiichi & Aziz, Muhammad, 2023. "Theoretical and experimental investigation of ash-related problems during coal co-firing with different types of biomass in a pulverized coal-fired boiler," Energy, Elsevier, vol. 269(C).
    12. Huang, Shengxiong & Lei, Can & Qin, Jie & Yi, Cheng & Chen, Tao & Yao, Lingling & Li, Bo & Wen, Yujiao & Zhou, Zhi & Xia, Mao, 2022. "Properties, kinetics and pyrolysis products distribution of oxidative torrefied camellia shell in different oxygen concentration," Energy, Elsevier, vol. 251(C).
    13. Fakudze, Sandile & Wei, Yingyuan & Shang, Qianqian & Ma, Ru & Li, Yueh-Heng & Chen, Jianqiang & Zhou, Peiguo & Han, Jiangang & Liu, Chengguo, 2021. "Single-pot upgrading of run-of-mine coal and rice straw via Taguchi-optimized hydrothermal treatment: Fuel properties and synergistic effects," Energy, Elsevier, vol. 236(C).
    14. Zhu, Hongqing & Liao, Qi & Hu, Lintao & Xie, Linhao & Qu, Baolin & Gao, Rongxiang, 2023. "Effect of removal of alkali and alkaline earth metals in cornstalk on slagging/fouling and co-combustion characteristics of cornstalk/coal blends for biomass applications," Renewable Energy, Elsevier, vol. 207(C), pages 275-285.

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