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Development of Oxygen-rich Furnace System for reduced CO2 and NOx emissions

The purpose of this work was to develop an O2-enriched furnace system that will reduce CO2 and NOx emissions under typical steel industry operating conditions. The combination of the latest burner technology for air-fuel combustion with O2-enrichment should result in both lower NOx and CO2 emissions. A modification to an ultra-low-NOx burner design to accommodate O2-enriched combustion was made and installed in a pilot reheat furnace. The burner was tested and optimized within its range of operating configurations.

Development Status Products
Demonstration

Development of Oxygen-rich Furnace System for reduced CO2 and NOx emissionsCosts & Benefits

Parent Process: Rolling Mills
Energy Savings Potential

By applying this technology, fuel firing rate was decreased from 325-365 KW to 200-220 KW.

CO2 Emission Reduction Potential

Potential savings are 40 – 45% in fuel usage. A corresponding reduction in CO2 emissions is obvious.

Costs

Fuel savings are offset to some extent by the cost of the Oxygen. However O2 production technologies are becoming more economical.

Development of Oxygen-rich Furnace System for reduced CO2 and NOx emissions Publications