Palm Kernel Shell (PKS) is regarded as a natural high quality solid renewable fuel made up of the hard shells of palm kernel nut.
In the palm oil milling process, palm kernel nuts are separated from the fibruos palm pulp. The nuts are then cracked to extract the kernels for subsequent oil extraction while the shells are separated from the main processing line. Part of the shells are used as fuel for the boiler and the balance is processed into renewable palm biofuel.
Similar to other nut shell, PKS has calorific value close to that of wood pellets, lignite (brown coal) and peat, with Lower Heating Value of 3’500 kCal/kg and Higher Heating Value of 4’000 kCal/kg.
Moisture content is kept below 20% to enable dependable boiler and burner emission and combustion performance.
Advantages of using PKS as biomass fuel.
The features and characteristics of the offered product make it the best among the available biomass fuels. High repeatability of the fuel's parameters along with competitive price assure economy, low CO2 emmision and tax allowances, as well as lower costs of inner logistics and savings in exploitation of kettle's peripherals (such as loaders or transporters). There is also no need to invest in such expenses as canopied storage yards.
- high calorific value 14-20 000 kJ/kg,
- very low ash content about 2%,
- stable moisture content 10-20%,
- resistance for crushing also in long-lasting shipping,
- constant granulation curve,
- constant granulation (similar to II A coal dust),
- advantageous apparent density – possibility to use also in bottom-blowing hearths,
- inexpensive inner logistics (thanks to high callorific value),
- resistance for atmospheric conditions - no need to store inside,
- possibility of regular deliveries,
- blends well with coal dust,
- far more resistant to rotting than wood.