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Combustion Characterization and Kinetic Analysis of Coupled Combustion of Bio-Syngas and Bituminous Coal

Author

Listed:
  • Ailing He

    (School of Civil and Transportation Engineering, Qinghai Minzu University, Xining 810007, China)

  • Zaifeng Li

    (Henan Key Lab of Biomass Energy, Zhengzhou 450008, China)

  • Bingdong Gu

    (School of Civil and Transportation Engineering, Qinghai Minzu University, Xining 810007, China)

  • Tingzhou Lei

    (Institute of Urban & Rural Mining CCZU, Changzhou University, Changzhou 213164, China)

Abstract

The coupled combustion of bio-syngas and bituminous coal is an effective technology to reduce pollutant emissions from coal-fired power plants and improve the utilization rate of biomass energy. However, the effects of bio-syngas blending on bituminous coal combustion characteristics and reaction kinetics remain unclear, restricting the development of bio-syngas and bituminous coal combustion technology. In this study, the experimental studies on the coupled combustion of bio-syngas and bituminous coal under different bio-syngas lower-heating-value-based blending ratio (BLBR) were carried out by Micro-Fluidized Bed Reaction Analyzer (MFBRA), the coupled combustion characteristics and kinetic reaction mechanism of coupled combustion of bio-syngas and bituminous coal were analyzed. The results indicated that the nucleation and growth model (F1 Model) provided a reasonable description of the bituminous coal combustion process on the coupled combustion of bio-syngas and bituminous coal in MFBRA. The blending of bio-syngas significantly reduces the apparent activation energy and pre-exponential factor of bituminous coal combustion reaction. In particular, when the BLBR is 5, 10, 20, and 30%, the apparent activation energy is 48.70, 45.45, 46.75, and 42.35 kJ·mol −1 , and the pre-exponential factor is 9.26, 7.10, 8.95, and 6.70 s −1 , respectively. This research is helpful for improving the coupled combustion efficiency and ensuring the efficient operation of the coupled combustion system.

Suggested Citation

  • Ailing He & Zaifeng Li & Bingdong Gu & Tingzhou Lei, 2024. "Combustion Characterization and Kinetic Analysis of Coupled Combustion of Bio-Syngas and Bituminous Coal," Energies, MDPI, vol. 17(23), pages 1-16, December.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:23:p:6205-:d:1539932
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    References listed on IDEAS

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    1. João Silva & Senhorinha Teixeira & José Teixeira, 2023. "A Review of Biomass Thermal Analysis, Kinetics and Product Distribution for Combustion Modeling: From the Micro to Macro Perspective," Energies, MDPI, vol. 16(18), pages 1-23, September.
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