IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v328y2025ics0360544225023102.html
   My bibliography  Save this article

Effects of biomass blending ratios on flame temperature, alkali concentrations and slagging degree in coal and cornstalk/pine mixed combustion

Author

Listed:
  • Zheng, Shu
  • Zhang, Jian
  • Yan, Shaozhuo
  • Cai, Weiguang
  • Wang, Yuxin
  • Zhang, Jing
  • Xu, Ziqing
  • Lu, Qiang

Abstract

High contents of sodium (Na) and potassium (K) released from biomass fuels can cause slagging of the incinerator during the co-combustion of coal and biomass fuels. The temperature distributions, Na and K concentrations and slagging index of coal, cornstalk and pine mixed combustion were measured by spectrometer and complementary metal-oxide-semiconductor (CMOS) camera at different blending ratios. The average flame temperature at 2.6 s (1527.82 K) of pine was 1.07 times that at 2.8 s of cornstalk, due to the higher volatile content (75.31 %) of pine compared with cornstalk (53.35 %). As an increase of the blending ratios of cornstalk in the fuel from 20 % to 80 %, the total combustion duration first increased from 40 s to 45 s and finally reduced to 29 s. The nonlinear variation was attributed to the low heating value and low density of cornstalk. Na and K concentrations were positively correlated with the variation in the blending ratios of pine in the fuel. As the blending ratio of cornstalk in the fuel was 40 %, the slagging index was 0.5 (high level of slagging). The slagging degree during the mixed combustion of coal and cornstalk was affected by ash content and Na and K concentrations.

Suggested Citation

  • Zheng, Shu & Zhang, Jian & Yan, Shaozhuo & Cai, Weiguang & Wang, Yuxin & Zhang, Jing & Xu, Ziqing & Lu, Qiang, 2025. "Effects of biomass blending ratios on flame temperature, alkali concentrations and slagging degree in coal and cornstalk/pine mixed combustion," Energy, Elsevier, vol. 328(C).
    • Handle: RePEc:eee:energy:v:328:y:2025:i:c:s0360544225023102
    DOI: 10.1016/j.energy.2025.136668
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225023102
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.136668?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to

    for a different version of it.

    References listed on IDEAS

    as
    1. Wu, Dongyin & Wang, Yuhao & Wang, Yang & Li, Sen & Wei, Xiaolin, 2016. "Release of alkali metals during co-firing biomass and coal," Renewable Energy, Elsevier, vol. 96(PA), pages 91-97.
    2. Qi, Jingwei & Wang, Yijie & Xu, Pengcheng & Hu, Ming & Huhe, Taoli & Ling, Xiang & Yuan, Haoran & Chen, Yong, 2024. "Study on the Co-gasification characteristics of biomass and municipal solid waste based on machine learning," Energy, Elsevier, vol. 290(C).
    3. Liu, Yingzu & He, Yong & Wang, Zhihua & Xia, Jun & Wan, Kaidi & Whiddon, Ronald & Cen, Kefa, 2018. "Characteristics of alkali species release from a burning coal/biomass blend," Applied Energy, Elsevier, vol. 215(C), pages 523-531.
    4. Yin, Fan & Sun, Liyan & Zeng, Dewang & Gao, Zixiang & Xiao, Rui, 2024. "Investigations on oxygen carriers derived from natural ores or industrial solid wastes for chemical looping hydrogen generation using biomass pyrolysis gas," Energy, Elsevier, vol. 293(C).
    5. Liu, Lang & Ren, Shan & Yang, Jian & Jiang, Donghai & Guo, Junjiang & Pu, Yubao & Meng, Xianpiao, 2022. "Experimental study on K migration, ash fouling/slagging behaviors and CO2 emission during co-combustion of rice straw and coal gangue," Energy, Elsevier, vol. 251(C).
    6. Li, Mingda & Luo, Guangqian & Zou, Renjie & Qiu, Wencong & Xiao, Yi & Xu, Guangwen & Yao, Hong, 2025. "Combustion kinetics and ash particles structure analysis of biomass in-situ and cooling char," Energy, Elsevier, vol. 318(C).
    7. Wan, Kaidi & Vervisch, Luc & Gao, Zhenxun & Domingo, Pascale & Jiang, Chongwen & Xia, Jun & Wang, Zhihua, 2020. "Development of reduced and optimized reaction mechanism for potassium emissions during biomass combustion based on genetic algorithms," Energy, Elsevier, vol. 211(C).
    8. Liu, Yang & Fu, Peifang & Yu, Bo & Yan, Weijie & Chen, Yumin & Zhou, Huaichun, 2023. "Intrinsic combustion kinetics of rapid-pyrolysis Zhundong coal char," Energy, Elsevier, vol. 262(PB).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Zhang, Zhen & Liu, Jing & Shen, Fenghua & Wang, Zhen, 2020. "Temporal release behavior of potassium during pyrolysis and gasification of sawdust particles," Renewable Energy, Elsevier, vol. 156(C), pages 98-106.
    2. Zhang, Yufeng & Xie, Xingyun & Zhao, Jing & Wei, Xiaolin, 2020. "The alkali metal occurrence characteristics and its release and conversion during wheat straw pyrolysis," Renewable Energy, Elsevier, vol. 151(C), pages 255-262.
    3. Cao, Wenhan & Martí-Rosselló, Teresa & Li, Jun & Lue, Leo, 2019. "Prediction of potassium compounds released from biomass during combustion," Applied Energy, Elsevier, vol. 250(C), pages 1696-1705.
    4. Santhappan, Joseph Sekhar & Boddu, Muralikrishna & Gopinath, Arun S. & Mathimani, Thangavel, 2024. "Analysis of 27 supervised machine learning models for the co-gasification assessment of peanut shell and spent tea residue in an open-core downdraft gasifier," Renewable Energy, Elsevier, vol. 235(C).
    5. Shi, Kaiqi & Oladejo, Jumoke Mojisola & Yan, Jiefeng & Wu, Tao, 2019. "Investigation on the interactions among lignocellulosic constituents and minerals of biomass and their influences on co-firing," Energy, Elsevier, vol. 179(C), pages 129-137.
    6. Ghazidin, Hafizh & Suyatno, Suyatno & Prismantoko, Adi & Ruhiyat, Ade Sana & Prabowo, & Darmawan, Arif & Soleh, Mochamad & Aziz, Amiral & Asmanto, Puji & Vuthaluru, Hari & Wang, Yibin & Yurismono, Har, 2025. "Control of slagging and fouling during co-firing of solid recovered fuel and high-sodium coal using aluminum and magnesium-based additives," Energy, Elsevier, vol. 318(C).
    7. Ghazidin, Hafizh & Suyatno, Suyatno & Prismantoko, Adi & Karuana, Feri & Sarjono, & Prabowo, & Setiyawan, Atok & Darmawan, Arif & Aziz, Muhammad & Vuthaluru, Hari & Hariana, Hariana, 2024. "Impact of additives in mitigating ash-related problems during co-combustion of solid recovered fuel and high-sulfur coal," Energy, Elsevier, vol. 292(C).
    8. Yinghui Sun & Bohao Bai & Xu Yang & Shujun Zhu & Jilin Tian & Zhuozhi Wang & Li Xu & Lianfei Xu & Boxiong Shen, 2025. "Coal Gangue Utilization: Applications, Challenges, and Sustainable Development Strategies," Energies, MDPI, vol. 18(2), pages 1-39, January.
    9. Peng, Zeyu & Zhang, Qian & Liang, Litong & Gao, Zhihua & Wang, Dong & Li, Le & Han, Chun & Jia, Yu & Huang, Wei, 2024. "Evolution of structure and pyrolysis behavior of macerals and their interaction based on macro separation of a sub-bituminous coal," Energy, Elsevier, vol. 312(C).
    10. Quan, Jinxia & Miao, Zhenwu & Lin, Yousheng & Lv, Juan & Liu, Hailu & Feng, Chunzhou & Jiang, Enchen & Hu, Zhifeng, 2023. "Agglomeration mechanism of Fe2O3/Al2O3 oxygen carrier in chemical looping gasification," Energy, Elsevier, vol. 284(C).
    11. Zhao, Jing & Li, Bo & Wei, Xiaolin & Zhang, Yufeng & Li, Teng, 2020. "Slagging characteristics caused by alkali and alkaline earth metals during municipal solid waste and sewage sludge co-incineration," Energy, Elsevier, vol. 202(C).
    12. Yoonah Jeong & Ye-Eun Lee & I-Tae Kim, 2020. "Characterization of Sewage Sludge and Food Waste-Based Biochar for Co-Firing in a Coal-Fired Power Plant: A Case Study in Korea," Sustainability, MDPI, vol. 12(22), pages 1-12, November.
    13. Javier Royo & Paula Canalís & Sebastián Zapata & Maider Gómez & Carmen Bartolomé, 2022. "Ash Behaviour during Combustion of Agropellets Produced by an Agro-Industry—Part 2: Chemical Characterization of Sintering and Deposition," Energies, MDPI, vol. 15(4), pages 1-20, February.
    14. Li, Hang & Liu, Xinhui & Cao, Bingwei & Liu, Changyi & Yang, Jianwen & Chen, Wei, 2024. "Optimisation of downdraft gasifier in biomass-fuelled power generation system: Experimental analysis and chemical kinetics modelling with tar cracking," Energy, Elsevier, vol. 313(C).
    15. Li, Fenghai & Li, Yang & Fan, Hongli & Wang, Tao & Guo, Mingxi & Fang, Yitian, 2019. "Investigation on fusion characteristics of deposition from biomass vibrating grate furnace combustion and its modification," Energy, Elsevier, vol. 174(C), pages 724-734.
    16. Ye-Eun Lee & Dong-Chul Shin & Yoonah Jeong & I-Tae Kim & Yeong-Seok Yoo, 2019. "Effects of Pyrolysis Temperature and Retention Time on Fuel Characteristics of Food Waste Feedstuff and Compost for Co-Firing in Coal Power Plants," Energies, MDPI, vol. 12(23), pages 1-14, November.
    17. Zhang, Zihang & Liu, Jinlong & Yi, Weiming & Wang, Shurong, 2025. "Automated machine learning-assisted analysis of biomass catalytic pyrolysis for selective production of benzene, toluene, and xylene," Energy, Elsevier, vol. 320(C).
    18. 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.
    19. Guo, Feihong & He, Yi & Hassanpour, Ali & Gardy, Jabbar & Zhong, Zhaoping, 2020. "Thermogravimetric analysis on the co-combustion of biomass pellets with lignite and bituminous coal," Energy, Elsevier, vol. 197(C).
    20. Huang, Junxuan & Liao, Yanfen & Lin, Jianhua & Dou, Changjiang & Huang, Zengxiu & Yu, Xiongwei & Yu, Zhaosheng & Chen, Chunxiang & Ma, Xiaoqian, 2024. "Numerical simulation of the co-firing of pulverized coal and eucalyptus wood in a 1000MWth opposed wall-fired boiler," Energy, Elsevier, vol. 298(C).

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:328:y:2025:i:c:s0360544225023102. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.