Comparison between the economic operation of biomass-fired chain grate boilers and coal-fired chain grate boilers

Advantages of biomass fuel:

• Biomass fuels not only comply with the national renewable energy policies and emission reduction policies but also have broad promotion prospects and significant social significance.

Disadvantages of biomass fuel:

• The supply of biomass fuel is affected by factors such as the season and the production of farmers; Biomass fuel has high requirements for storage sites and fire protection levels; The price of biomass fuel fluctuates greatly.

• Because of the complex source of biomass fuel, it has large calorific value fluctuations. And, some ions contained in the biomass fuel will corrode the boiler.

Advantages of coal:

• The supply of coal is sufficient. The production technology of coal-fired boilers is mature. And, the boiler operator has high familiarity with coal. Therefore, the costs of coal are lower than that of biomass fuel.

Disadvantages of coal:

• The boiler room of coal-fired boilers, the coal storage shed, the coal unloading device and other auxiliary facilities cover a large area.

• Some small and medium-sized industrial boilers have been phased out because of the pressure from environmental protection and emission reduction. The costs of three wastes treatment have increased a lot in recent years.