IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v275y2023ics036054422300854x.html
   My bibliography  Save this article

Theoretical analysis and experimental verification of diminishing the diffusion influence on determination of char oxidation kinetics by thermo-gravimetric analysis

Author

Listed:
  • Hu, Fan
  • Xiong, Biao
  • Huang, Xiaohong
  • Liu, Zhaohui

Abstract

In this paper, theoretical analysis and experimental studies are carried out to analyze the intrinsic kinetic properties of coal char oxidation based on a thermo-gravimetric analyzer (TGA). A one-dimensional oxidation model of the char particles’ layer is established to consider various diffusion resistances, including external, inter-particle layer, and intra-particle diffusion in the crucible during TGA experiments. The model is validated (1) with the effective factor results calculated by the Thiele modulus formula; (2) with the present TGA experimental data. Then, the oxidation process of coal char in TGA under different crucible loading positions, particle thicknesses, oxygen concentrations, and heating rates, is inverted by the model. The results show that the external diffusion in the crucible significantly affects the char oxidation process. The external diffusion resistance increases with increasing the stagnation zone. The inter-particle layer resistance enhances with thickening particle thickness. The influence of diffusion resistance can be diminished as much as possible by filling the bottom of the crucible with inertia alumina particles. Further non-isothermal TGA experiments and kinetic analysis of a bituminous coal char confirm that the activation energy obtained by the optimized method (168.3 kJ/mol) is much higher than that obtained by the conventional method (134.1 kJ/mol).

Suggested Citation

  • Hu, Fan & Xiong, Biao & Huang, Xiaohong & Liu, Zhaohui, 2023. "Theoretical analysis and experimental verification of diminishing the diffusion influence on determination of char oxidation kinetics by thermo-gravimetric analysis," Energy, Elsevier, vol. 275(C).
    • Handle: RePEc:eee:energy:v:275:y:2023:i:c:s036054422300854x
    DOI: 10.1016/j.energy.2023.127460
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054422300854X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2023.127460?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 search for a different version of it.

    References listed on IDEAS

    as
    1. Huang, Xiaohong & Hu, Fan & Liu, Xuhui & Liu, Zhaohui, 2022. "Structure and reactivity of chars prepared from low-volatile coal under O2/N2 and O2/CO2 conditions in a flat-flame assisted entrained flow reactor," Energy, Elsevier, vol. 261(PB).
    2. Fan, Weidong & Wu, Xiaofeng & Guo, Hao & Zhu, Jiangtao & Liu, Peng & Chen, Can & Wang, Yong, 2019. "Experimental study on the impact of adding NH3 on NO production in coal combustion and the effects of char, coal ash, and additives on NH3 reducing NO under high temperature," Energy, Elsevier, vol. 173(C), pages 109-120.
    3. Rago, Yogeshwari Pooja & Collard, François-Xavier & Görgens, Johann F. & Surroop, Dinesh & Mohee, Romeela, 2022. "Co-combustion of torrefied biomass-plastic waste blends with coal through TGA: Influence of synergistic behaviour," Energy, Elsevier, vol. 239(PA).
    4. Vincent, Shubha Shalini & Mahinpey, Nader & Aqsha, Aqsha, 2014. "Mass transfer studies during CO2 gasification of torrefied and pyrolyzed chars," Energy, Elsevier, vol. 67(C), pages 319-327.
    5. Liu, Feng & Liu, Jing & Li, Yu & Fang, Ruixue & Yang, Yingju, 2022. "Studies on the synergistically improved reactivity of spinel NiFe2O4 oxygen carrier for chemical-looping combustion," Energy, Elsevier, vol. 239(PB).
    6. Gil, M.V. & Riaza, J. & Álvarez, L. & Pevida, C. & Pis, J.J. & Rubiera, F., 2012. "Kinetic models for the oxy-fuel combustion of coal and coal/biomass blend chars obtained in N2 and CO2 atmospheres," Energy, Elsevier, vol. 48(1), pages 510-518.
    7. Siddiqi, Hammad & Kumari, Usha & Biswas, Subrata & Mishra, Asmita & Meikap, B.C., 2020. "A synergistic study of reaction kinetics and heat transfer with multi-component modelling approach for the pyrolysis of biomass waste," Energy, Elsevier, vol. 204(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).
    9. Yu, Junqin & Xia, Weidong & Areeprasert, Chinnathan & Ding, Lu & Umeki, Kentaro & Yu, Guangsuo, 2022. "Catalytic effects of inherent AAEM on char gasification: A mechanism study using in-situ Raman," Energy, Elsevier, vol. 238(PC).
    10. Parrillo, F. & Ruoppolo, G. & Arena, U., 2020. "The role of activated carbon size in the catalytic cracking of naphthalene," Energy, Elsevier, vol. 190(C).
    11. Kibria, M.A. & Sripada, Pramod & Woo, M.W. & Bhattacharya, Sankar, 2019. "Fate of a biomass particle during CO2 gasification: A mathematical model under entrained flow condition at high temperature," Energy, Elsevier, vol. 168(C), pages 1045-1062.
    12. Jayaraman, Kandasamy & Kök, Mustafa Versan & Gökalp, Iskender, 2020. "Combustion mechanism and model free kinetics of different origin coal samples: Thermal analysis approach," Energy, Elsevier, vol. 204(C).
    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. Hu, Fan & Xiong, Biao & Liu, Xuhui & Huang, Xiaohong & Li, Yu & Liu, Zhaohui, 2023. "Optimized TGA-based experimental method for studying intrinsic kinetics of coal char oxidation under moderate or intense low-oxygen dilution oxy-fuel conditions," Energy, Elsevier, vol. 265(C).
    2. Mostafa, Mohamed E. & He, Limo & Xu, Jun & Hu, Song & Wang, Yi & Su, Sheng & Hu, Xun & Elsayed, Saad A. & Xiang, Jun, 2019. "Investigating the effect of integrated CO2 and H2O on the reactivity and kinetics of biomass pellets oxy-steam combustion using new double parallel volumetric model (DVM)," Energy, Elsevier, vol. 179(C), pages 343-357.
    3. Shunji Kang & Zhi Shen & Xizhou Shen & Liuya Fang & Li Xiang & Wenze Yang, 2021. "Experimental investigation on CO2 desorption kinetics from MDEA + PZ and comparison with MDEA/MDEA + DEA aqueous solutions with thermo‐gravimetric analysis method," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 11(5), pages 974-987, October.
    4. Granados, David A. & Chejne, Farid & Mejía, Juan M. & Gómez, Carlos A. & Berrío, Ariel & Jurado, William J., 2014. "Effect of flue gas recirculation during oxy-fuel combustion in a rotary cement kiln," Energy, Elsevier, vol. 64(C), pages 615-625.
    5. Zhang, Zhiyuan & Wang, Xutao & Zhang, Lilin & Zhou, Hengtao & Ju, Rui & Rao, Peijun & Guo, Xiaoyu & Han, Yaqian & Chen, Hongwei, 2022. "Characteristics of steel slag as an oxygen carrier for chemical looping gasification of sewage sludge," Energy, Elsevier, vol. 247(C).
    6. Wang, Xun & Fu, Genshen & Xiao, Bo & Xu, Tingting, 2022. "Optimization of nickel-iron bimetallic oxides for coproduction of hydrogen and syngas in chemical looping reforming with water splitting process," Energy, Elsevier, vol. 246(C).
    7. Ni, Guanhua & Dou, Haoran & Li, Zhao & Zhu, Chuanjie & Sun, Gongshuai & Hu, Xiangming & Wang, Gang & Liu, Yixin & Wang, Zhenyang, 2022. "Study on the combustion characteristics of bituminous coal modified by typical inorganic acids," Energy, Elsevier, vol. 261(PA).
    8. Zhao, Jingyu & Hang, Gai & Song, Jiajia & Lu, Shiping & Ming, Hanqi & Chang, Jiaming & Deng, Jun & Zhang, Yanni & Shu, Chi-Min, 2023. "Spontaneous oxidation kinetics of weathered coal based upon thermogravimetric characteristics," Energy, Elsevier, vol. 275(C).
    9. Daniela Almeida Streitwieser & Arturo Arteaga & Alvaro Gallo-Cordova & Alexis Hidrobo & Sebastian Ponce, 2023. "Chemical Recycling of Used Motor Oil by Catalytic Cracking with Metal-Doped Aluminum Silicate Catalysts," Sustainability, MDPI, vol. 15(13), pages 1-13, July.
    10. 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).
    11. Aprianti, Nabila & Faizal, Muhammad & Said, Muhammad & Nasir, Subriyer & Fudholi, Ahmad, 2023. "Gasification kinetic and thermodynamic parameters of fine coal using thermogravimetric analysis," Energy, Elsevier, vol. 268(C).
    12. Ma, Zhangke & Cheng, Leming & Wang, Qinhui & Li, Liyao & Luo, Guanwen & Zhang, Weiguo, 2022. "Co-combustion characteristics and CO2 emissions of low-calorific multi-fuels by TG-FTIR analysis," Energy, Elsevier, vol. 252(C).
    13. Zou, Huihuang & Liu, Chao & Evrendilek, Fatih & He, Yao & Liu, Jingyong, 2021. "Evaluation of reaction mechanisms and emissions of oily sludge and coal co-combustions in O2/CO2 and O2/N2 atmospheres," Renewable Energy, Elsevier, vol. 171(C), pages 1327-1343.
    14. Tanui, J.K. & Kioni, P.N. & Mirre, T. & Nowitzki, M. & Karuri, N.W., 2020. "The influence of particle packing density on wood combustion in a fixed bed under oxy-fuel conditions," Energy, Elsevier, vol. 194(C).
    15. Růžičková, Jana & Raclavská, Helena & Juchelková, Dagmar & Kucbel, Marek & Raclavský, Konstantin & Švédová, Barbora & Šafář, Michal & Pfeifer, Christoph & Hrbek, Jitka, 2022. "Organic compounds in the char deposits characterising the combustion of unauthorised fuels in residential boilers," Energy, Elsevier, vol. 257(C).
    16. Chen, Bin & Li, Yanlin & Yuan, Mengxue & Shen, Jun & Wang, Sha & Tong, Jianhui & Guo, Yun, 2022. "Study of the Co-pyrolysis characteristics of oil shale with wheat straw based on the hierarchical collection," Energy, Elsevier, vol. 239(PB).
    17. Bai, Yonghui & Wang, Yulong & Zhu, Shenghua & Li, Fan & Xie, Kechang, 2014. "Structural features and gasification reactivity of coal chars formed in Ar and CO2 atmospheres at elevated pressures," Energy, Elsevier, vol. 74(C), pages 464-470.
    18. Zhu, Haodong & Yi, Baojun & Hu, Hongyun & Fan, Qizhou & Wang, Hao & Yao, Hong, 2021. "The effects of char and potassium on the fast pyrolysis behaviors of biomass in an infrared-heating condition," Energy, Elsevier, vol. 214(C).
    19. Jiao, Anyao & Zhou, Zining & Yang, Xiuchao & Xu, Hongtao & Liu, Feng & Liao, Xiaowei & Liu, Jiaxun & Jiang, Xiumin, 2023. "The crucial role of oxygen in NO heterogeneous reduction with NH3 at high temperature," Energy, Elsevier, vol. 284(C).
    20. Ali Abdelaal & Vittoria Benedetti & Audrey Villot & Francesco Patuzzi & Claire Gerente & Marco Baratieri, 2023. "Innovative Pathways for the Valorization of Biomass Gasification Char: A Systematic Review," Energies, MDPI, vol. 16(10), pages 1-24, May.

    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:275:y:2023:i:c:s036054422300854x. 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.