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Blast furnace gas

Genesis & Process

⁄ Also known as “Tieglgas” or “Gichtgas”

⁄ Generated as a by-product of blast furnaces

during the reduction of iron ore with coke to metallic iron

⁄ For combustion, mostly enrichment of natural
or other siderugical gases needed (just for flaring)

- Fairly low heating value ~0,8kWh/m³

⁄ Presently used, after enrichment, in boilers or power plants
(steam plant) or directly flared

⁄ Synthesis (endoderm):

• Boduard reaction

• C + CO → 2CO
2
• Water gas reaction
• C + H O → H + CO
2
2
• …and some more!

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