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Reactivity prediction and mechanism analysis of raw and demineralized coal char gasification

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  • He, Qing
  • Gong, Yan
  • Ding, Lu
  • Guo, Qinghua
  • Yoshikawa, Kunio
  • Yu, Guangsuo

Abstract

A series of thermogravimetric experiments were conducted to study the gasification kinetics of raw and demineralized coal char. The gasification mechanism was reveled through the kinetic analysis and the structure evolution. The systematic analyses showed that the reactivity of demineralized coal char was more sensitive to the heating rate β. The random pore model was more suitable for both raw and demineralized coal chars, where the pre-exponential factor (A) played the essential role in fitting performance. Moreover, the parameters of kinetic compensation effect were found to have a good linear relationship with lnβ, and the variations of kinetic triplet (A, Ea and f(X)) with the conversion level could be further explored accordingly. The reactivity predictions employing the integral and differential approaches were compared under the isothermal and non-isothermal conditions. The reactivity of raw coal char was more easily affected by diffusion, and the conversion-effectiveness factors increased with the conversion level at high temperatures. Finally, the local gasification mechanism was analyzed by piecewise comparing different single-step global models. The raw coal char featured the closed-pore reopening according to the distribution pore structure. The ash can act as the nuclei for gasification and affect pore growth and coalescence.

Suggested Citation

  • He, Qing & Gong, Yan & Ding, Lu & Guo, Qinghua & Yoshikawa, Kunio & Yu, Guangsuo, 2021. "Reactivity prediction and mechanism analysis of raw and demineralized coal char gasification," Energy, Elsevier, vol. 229(C).
    • Handle: RePEc:eee:energy:v:229:y:2021:i:c:s0360544221009725
    DOI: 10.1016/j.energy.2021.120724
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    1. Ku, Xiaoke & Wang, Jin & Jin, Hanhui & Lin, Jianzhong, 2019. "Effects of operating conditions and reactor structure on biomass entrained-flow gasification," Renewable Energy, Elsevier, vol. 139(C), pages 781-795.
    2. Kouprianov, V.I, 2001. "Modeling of thermal characteristics for a furnace of a 500 MW boiler fired with high-ash coal," Energy, Elsevier, vol. 26(9), pages 839-853.
    3. Almazrouei, Manar & Janajreh, Isam, 2020. "Model-fitting approach to kinetic analysis of non-isothermal pyrolysis of pure and crude glycerol," Renewable Energy, Elsevier, vol. 145(C), pages 1693-1708.
    4. Iwaszenko, Sebastian & Howaniec, Natalia & Smoliński, Adam, 2019. "Determination of random pore model parameters for underground coal gasification simulation," Energy, Elsevier, vol. 166(C), pages 972-978.
    5. Rousseau, Pieter & Laubscher, Ryno, 2020. "Analysis of the impact of coal quality on the heat transfer distribution in a high-ash pulverized coal boiler using co-simulation," Energy, Elsevier, vol. 198(C).
    6. Ahmed, I.I. & Gupta, A.K., 2011. "Kinetics of woodchips char gasification with steam and carbon dioxide," Applied Energy, Elsevier, vol. 88(5), pages 1613-1619, May.
    7. Kim, Ryang-Gyoon & Hwang, Chan-Won & Jeon, Chung-Hwan, 2014. "Kinetics of coal char gasification with CO2: Impact of internal/external diffusion at high temperature and elevated pressure," Applied Energy, Elsevier, vol. 129(C), pages 299-307.
    8. Stoesser, P. & Schneider, C. & Kreitzberg, T. & Kneer, R. & Kolb, T., 2018. "On the influence of different experimental systems on measured heterogeneous gasification kinetics," Applied Energy, Elsevier, vol. 211(C), pages 582-589.
    9. Li, Mi & Jiang, Lin & He, Jia-Jia & Sun, Jin-Hua, 2019. "Kinetic triplet determination and modified mechanism function construction for thermo-oxidative degradation of waste polyurethane foam using conventional methods and distributed activation energy mode," Energy, Elsevier, vol. 175(C), pages 1-13.
    10. He, Qing & Yu, Junqin & Song, Xudong & Ding, Lu & Wei, Juntao & Yu, Guangsuo, 2020. "Utilization of biomass ash for upgrading petroleum coke gasification: Effect of soluble and insoluble components," Energy, Elsevier, vol. 192(C).
    11. He, Qing & Guo, Qinghua & Umeki, Kentaro & Ding, Lu & Wang, Fuchen & Yu, Guangsuo, 2021. "Soot formation during biomass gasification: A critical review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 139(C).
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