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Advanced One-Dimensional Entrained-Flow Gasifier Model Considering Melting Phenomenon of Ash

Author

Listed:
  • Jinsu Kim

    (Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea)

  • Hyunmin Oh

    (Graduate Institute of Ferrous Technology, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea)

  • Seokyoung Lee

    (Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea)

  • Young-Seek Yoon

    (Graduate Institute of Ferrous Technology, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea)

Abstract

A one-dimensional model is developed to represent the ash-melting phenomenon, which was not considered in the previous one-dimensional (1-D) entrained-flow gasifier model. We include sensible heat of slag and the fusion heat of ash in the heat balance equation. To consider the melting of ash, we propose an algorithm that calculates the energy balance for three scenarios based on temperature. We also use the composition and the thermal properties of anorthite mineral to express ash. gPROMS for differential equations is used to solve this algorithm in a simulation; the results include coal conversion, gas composition, and temperature profile. Based on the Texaco pilot plant gasifier, we validate our model. Our results show good agreement with previous experimental data. We conclude that the sensible heat of slag and the fusion heat of ash must be included in the entrained flow gasifier model.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:1015-:d:142442
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    References listed on IDEAS

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    1. Ronald W. Breault, 2010. "Gasification Processes Old and New: A Basic Review of the Major Technologies," Energies, MDPI, vol. 3(2), pages 1-25, February.
    2. Xia Liu & Juntao Wei & Wei Huo & Guangsuo Yu, 2017. "Gasification under CO 2 –Steam Mixture: Kinetic Model Study Based on Shared Active Sites," Energies, MDPI, vol. 10(11), pages 1-10, November.
    3. Vijayaragavan Krishnamoorthy & Sarma V. Pisupati, 2015. "A Critical Review of Mineral Matter Related Issues during Gasification of Coal in Fixed, Fluidized, and Entrained Flow Gasifiers," Energies, MDPI, vol. 8(9), pages 1-34, September.
    4. Qitai Eri & Wenzhen Wu & Xinjun Zhao, 2017. "Numerical Investigation of the Air-Steam Biomass Gasification Process Based on Thermodynamic Equilibrium Model," Energies, MDPI, vol. 10(12), pages 1-19, December.
    5. 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.
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    Cited by:

    1. Mejdi Jeguirim & Lionel Limousy, 2019. "Biomass Chars: Elaboration, Characterization and Applications II," Energies, MDPI, vol. 12(3), pages 1-6, January.
    2. Kim, Jinsu & Kim, Jungil & Oh, Hyunmin & Lee, Seokyoung & Lee, In-Beum & Yoon, Young-Seek, 2022. "Techno-economic and environmental impact analysis of tuyere injection of hot reducing gas from low-rank coal gasification in blast furnace," Energy, Elsevier, vol. 241(C).

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