Pelletizing - Definition, glossary, details
Pelletizing is a compacting process that produces homogenous fuel
with high energy density in cylindrical shapes with dimension of 6-8 mm
diameter. Currently, pellets are the most appropriate biomass-derived fuel to
be utilized in coal-fired plants. The pelletizing process consists of drying,
milling, conditioning, actual pelletizing and cooling, optionally followed by
fines separation and packing.
Pellets are a refined product, which is dry, permits automatic
handling and feeding and has high energy density, which reduces costs of
transportation as well as the required storage space in comparison with other
biomass materials. Pelletizing can be applied to various types of biomass,
woody as well as herbaceous. Additionally, the properties of pellets make it
easier to grind the feedstock, handle it, and feed into the boiler.
An important advantage of pelletizing is that it addresses the issue
of low bulk density of biomass fuels. Low bulk density of biomass has an impact
on transportation costs and can restrict the co-firing ratio due to limited
capacity of boiler input systems.
|Pre-Combustion Carbon Capture||Post combustion carbon capture||Pyrolysis|
|Physical Absorption||Physical Adsorption||Pulverized Coal Combustion|
|Polar amplification||Point Source||Physical trapping|