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One-Dimensional Modeling of an Entrained Coal Gasification Process Using Kinetic Parameters

Author

Listed:
  • Moonkyeong Hwang

    (School of Mechanical Engineering, Pusan National University, Pusan 46241, Korea)

  • Eunhye Song

    (School of Mechanical Engineering, Pusan National University, Pusan 46241, Korea)

  • Juhun Song

    (School of Mechanical Engineering, Pusan National University, Pusan 46241, Korea)

Abstract

A one-dimensional reactor model was developed to simulate the performance of an entrained flow gasifier under various operating conditions. The model combined the plug flow reactor (PFR) model with the well-stirred reactor (WSR) model. Reaction kinetics was considered together with gas diffusion for the solid-phase reactions in the PFR model, while equilibrium was considered for the gas-phase reactions in the WSR model. The differential and algebraic equations of mass balance and energy balance were solved by a robust ODE solver, i.e. , an semi-implicit Runge–Kutta method, and by a nonlinear algebraic solver, respectively. The computed gasifier performance was validated against experimental data from the literature. The difference in product gas concentration from the equilibrium model, and the underlying mechanisms were discussed further. The optimal condition was found after parameter studies were made for various operating conditions.

Suggested Citation

  • Moonkyeong Hwang & Eunhye Song & Juhun Song, 2016. "One-Dimensional Modeling of an Entrained Coal Gasification Process Using Kinetic Parameters," Energies, MDPI, vol. 9(2), pages 1-21, February.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:2:p:99-:d:63688
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    Citations

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    Cited by:

    1. Jinsu Kim & Hyunmin Oh & Seokyoung Lee & Young-Seek Yoon, 2018. "Advanced One-Dimensional Entrained-Flow Gasifier Model Considering Melting Phenomenon of Ash," Energies, MDPI, vol. 11(4), pages 1-14, April.
    2. Tomasz Janoszek & Wojciech Masny, 2021. "CFD Simulations of Allothermal Steam Gasification Process for Hydrogen Production," Energies, MDPI, vol. 14(6), pages 1-28, March.
    3. Christopher Otto & Thomas Kempka, 2020. "Synthesis Gas Composition Prediction for Underground Coal Gasification Using a Thermochemical Equilibrium Modeling Approach," Energies, MDPI, vol. 13(5), pages 1-17, March.
    4. Gyeong-Min Kim & Jong-Pil Kim & Kevin Yohanes Lisandy & Chung-Hwan Jeon, 2017. "Experimental Model Development of Oxygen-Enriched Combustion Kinetics on Porous Coal Char and Non-Porous Graphite," Energies, MDPI, vol. 10(9), pages 1-14, September.
    5. Kibria, M.A. & Sripada, Pramod & Bhattacharya, Sankar, 2020. "Steady state kinetic model for entrained flow CO2 gasification of biomass at high temperature," Energy, Elsevier, vol. 196(C).
    6. Xi Lin & Qingya Liu & Zhenyu Liu, 2018. "Estimation of Effective Diffusion Coefficient of O 2 in Ash Layer in Underground Coal Gasification by Thermogravimetric Apparatus," Energies, MDPI, vol. 11(2), pages 1-14, February.

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