Blast furnace gas
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This gas is discharged from iron-making blast furnaces and is similar in composition to producer gas made from coke and air. It is composed mainly of carbon monoxide (27%), nitrogen (60%), and contains small amounts of hydrogen (2%) and carbon dioxide (11%). Although its total calorific value (850-1100 kcal/mm 3 ) is low, it has long been used as a heat source in steelmaking and other industries. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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製鉄溶鉱炉から排出されるガスで，コークスと空気からつくる発生炉ガスと成分的によく似ている。一酸化炭素 (27%) ，窒素 (60%) を主成分とし，少量の水素 (2%) および二酸化炭素 (11%) を含む。総発熱量 (850～1100kcal/mm3) は低いが，古くから製鋼その他の工業熱源として用いられた。
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