Fuels and Combustion
The sequence of absorption in flue gas analysis by Orsat's apparatus is respectively

CO₂, CO, O₂
O₂, CO₂, CO
CO, O₂, CO₂
CO₂, O₂, CO

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Fuels and Combustion
Coke oven gas is a better fuel than blast furnace gas, because of its higher

Adiabatic flame temperature
All of these
Heat release rate (thus requiring smaller combustion chamber)
Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity)

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