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This study developed a series of models to simulate blast furnaceBlast furnace hydrogen-enriched injection operations under hydrogenHydrogen-rich gas injection, including coke oven gas(COG), natural gas(NG), syngas, and hydrogenHydrogen, based on mass-energyEnergy balance, theoretical combustion temperatureTheoretical combustion temperature, and energyEnergy and carbonCarbon emission analysis. The results showed a consistent decrease in the degree of direct reductionDirect reduction with increasing gas injection volume (10–60 m3/t). For each 10 m3/t increase in injection, the degree of direct reductionDirect reduction decreased by 0.0097 (COG), 0.0185 (NG), 0.0047 (syngas), and 0.0087 (hydrogenHydrogen). Similarly, the theoretical combustion temperatureTheoretical combustion temperature decreased by 4.93 °C (COG), 12 °C (NG), 3.13 °C (syngas), and 2.41 °C (hydrogenHydrogen). The average fuel replacement ratiosReplacement ratio were 0.478 kg/m3 (NG), 0.867 kg/m3 (COG), 0.289 kg/m3 (syngas), and 0.384 kg/m3 (hydrogenHydrogen). EnergyEnergy consumption increased by 1.07 kgce/t (COG), 2.74 kgce/t (NG), and 0.683 kgce/t (syngas) per 10 m3/t of gas injected, whereas it decreased by 0.675 kgce/t for hydrogenHydrogen. Notably, carbonCarbon emissions were reduced by 5.728 kg/t (COG), 13.763 kg/t (NG), 3.933 kg/t (syngas), and 14.977 kg/t (hydrogenHydrogen) per 10 m3/t injection.

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Study on the Influence of Blast Furnace Hydrogen-Rich Blowing Smelting Parameters and Energy Saving and Carbon Reduction

  • 会议论文

  • 发表日期：

    2026年

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  • Haipeng Xia,
  • Meng Xu,
  • Gele Qing,
  • Xiangfeng Cheng,
  • Wenxuan Xu,
  • Guilin Wang

摘要

This study developed a series of models to simulate blast furnaceBlast furnace hydrogen-enriched injection operations under hydrogenHydrogen-rich gas injection, including coke oven gas(COG), natural gas(NG), syngas, and hydrogenHydrogen, based on mass-energyEnergy balance, theoretical combustion temperatureTheoretical combustion temperature, and energyEnergy and carbonCarbon emission analysis. The results showed a consistent decrease in the degree of direct reductionDirect reduction with increasing gas injection volume (10–60 m3/t). For each 10 m3/t increase in injection, the degree of direct reductionDirect reduction decreased by 0.0097 (COG), 0.0185 (NG), 0.0047 (syngas), and 0.0087 (hydrogenHydrogen). Similarly, the theoretical combustion temperatureTheoretical combustion temperature decreased by 4.93 °C (COG), 12 °C (NG), 3.13 °C (syngas), and 2.41 °C (hydrogenHydrogen). The average fuel replacement ratiosReplacement ratio were 0.478 kg/m3 (NG), 0.867 kg/m3 (COG), 0.289 kg/m3 (syngas), and 0.384 kg/m3 (hydrogenHydrogen). EnergyEnergy consumption increased by 1.07 kgce/t (COG), 2.74 kgce/t (NG), and 0.683 kgce/t (syngas) per 10 m3/t of gas injected, whereas it decreased by 0.675 kgce/t for hydrogenHydrogen. Notably, carbonCarbon emissions were reduced by 5.728 kg/t (COG), 13.763 kg/t (NG), 3.933 kg/t (syngas), and 14.977 kg/t (hydrogenHydrogen) per 10 m3/t injection.