Total oxygen required for blast furnace gas combustion
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Blast furnace gas
Blast furnace gas is produced during the iron oxide reduction in blast furnace iron making in which iron ore, coke and limestone are heated and melted in a blast furnace and is an indigenous process gas of the steelworks industry (Pugh et al., 2013). Blast furnace gas has a high carbon monoxide (CO) content and a low heating value, typical 3900 MJ/m3 (International Energy Agency, 2007). The five primary components of blast furnace gas are N2, CO, CO2, H2O and H2. The typical blast furnace gas composition in volume is N2 = 55.19%, CO = 20.78%, CO2 = 21.27% and H2 = 2.76% (Hou et al., 2011). The water content is removed by demisters following the cleaning process. This gas is used for the furnace mills, in gas engines and for electricity and steam generation. Often, in the steel industry, blast furnace gas is used as an accessional to natural gas (Bojic and Mourdoukountas, 2000). Blast furnace gas deposits adhere firmly; therefore, boilers using these type of fuel should be frequently cleaned.
Blast furnace gas is produced during the iron oxide reduction in blast furnace iron making in which iron ore, coke and limestone are heated and melted in a blast furnace and is an indigenous process gas of the steelworks industry (Pugh et al., 2013). Blast furnace gas has a high carbon monoxide (CO) content and a low heating value, typical 3900 MJ/m3 (International Energy Agency, 2007). The five primary components of blast furnace gas are N2, CO, CO2, H2O and H2. The typical blast furnace gas composition in volume is N2 = 55.19%, CO = 20.78%, CO2 = 21.27% and H2 = 2.76% (Hou et al., 2011). The water content is removed by demisters following the cleaning process. This gas is used for the furnace mills, in gas engines and for electricity and steam generation. Often, in the steel industry, blast furnace gas is used as an accessional to natural gas (Bojic and Mourdoukountas, 2000). Blast furnace gas deposits adhere firmly; therefore, boilers using these type of fuel should be frequently cleaned.
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