Description
Wood pellet standard
The wood pellets used in Heating and industrial boilers should meet the following standard:
- The diameters are 6-10mm
- The length is 4-5 times that of the diameter.
- The bulk density is more than 600kg/m3.
- The wood pellet density is 1.1-1.4kg/m3, but 0.8-1.1kg/m3 is more economical in industrial boilers.
- The crushing rate is less than 1.5%-2.0%.
- The moisture content of dry base is less than 10%-15%.
- The ash content is less than 1.5%.
- The sulfur content and chlorine content are both less than 0.07%.
- The nitrogen content is less than 0.5%.
- EU doesn’t have specific requirement on the calorific value, but according to the Swedish standard, the calorific value of wood pellets should be higher than 16MJ/kg.