Author name: Admin

Increase the adiabatic flame temperature

Increase the calorific value of the fuel

Complete the combustion of fuel

Reduce its requirement for effecting the complete combustion

High calorific value

Better combustion

Smokeless burning

Less erosion on furnace walls

8800 kcal/m³

8800 kcal/kg

Same as that of coal middling

25000 kcal/kg

Process of conversion of lignite into anthracite

Underground gasification of coal

Complete combustion of coal

Direct hydrogenation of coal

Less volatile matter

More carbon

Greater percentage of ash

All of the above

Ash

Volatile matter

Sulphur (4-6%)

Moisture

Produce weak coke

Produce strong coke

May damage the coke oven walls during carbonisation

Both B and C

5

10

20

35

CO

CH₄

CO₂

S

Increases its calorific value

Decreases its calorific value

Does not alter its calorific value

Is not possible on commerical scale