The Secret Code of Biomass Pellets: Raw Materials
Biomass pellets are primarily made from compressed agricultural and forestry waste (such as wood chips and straw), essentially representing solidified solar energy.
Compared to fossil fuels like coal, their carbon emissions are theoretically balanced – the carbon dioxide released during combustion is reabsorbed by newly planted plants.
However, in actual combustion, if the raw materials contain impurities such as painted wood, harmful substances may be released.
The Two Sides of Combustion Performance
Clean Combustion: When fully combusted in professional boilers, particulate emissions are more than 60% lower than those of loose coal.
Potential Hazards: Incomplete combustion in household stoves may produce tar and carbon monoxide.
Ash Disposal: The ash after combustion is rich in potassium and phosphorus and can be directly returned to the field as fertilizer.
Key Variables for Environmental Friendliness
Just like the difference between fresh ingredients and leftovers, the environmental friendliness of biomass pellets depends on:
Raw Material Purity: Industrial-grade pellets have an impurity content of less than 1%.
Equipment Matching: Dedicated boilers have a thermal efficiency of over 85%.
Proper Operation: Insufficient ventilation can lead to black smoke emissions.
