Calorific value of blast furnace gas is around _____________ KCal/Nm3?
Correct answer: A. 850
- A. 850
- B. 1800
- C. 4200
- D. 6500
Explanation
Blast-furnace gas contains much nitrogen and carbon dioxide, which dilute its combustible carbon monoxide and give it a low heating value. Its calorific value is approximately 850 kcal/Nm³.
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