FUELS AND COMBUSTION QUIZ

As a perfume

For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR)

As a motor fuel

As an explosive

Washing lump coal (> 80 mm size)

All of these

Removing ash from the coal based on difference in specific gravity of coal and ash

Washing fine coal dust (< 0.5 mm size)

Bituminous coal

Lignite

Anthracite

High temperature coke (V.M < 0.5%)

C₂H₆

H₂

C₂H₂

CO

Increase

Decrease

May increase or decrease ; depends on the quantity of products of combustion

Remain unchanged

Blast furnace gas

Petrol

Pitch

Refinery gas

2CO ⟷ C + CO₂

C + H₂O ⟷ CO + H₂

C + 2H₂O ⟷ CO₂ + 2H₂

CO + H₂O ⟷ CO₂ + H₂

Solar oil and pitch

Pitch and creosote oil

Anthracene and crecosote oil

Light oil and pitch

Phenolic water

Nitrogen

Carbon dioxide

Air

Both B and C

High production of CO₂

High production of CO

Low production of CO₂