Advantages and disadvantages of liquid fuel over solid fuel

Advantages of liquid fuel over solid fuel:

1.  Higher calorific value
2.  Practically no ashes
3.  Non-corrosion of boiler plate
4.  Better flow control by controlling valve
5.  Pollutant is low.
6.  Higher efficiency

Disadvantages of liquid fuel over solid fuel:

1.  Risk of fire
2.  Require better container than solid fuel
3.  Higher cost