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.

Other Terms

Pre-Combustion Carbon Capture Post combustion carbon capture Pyrolysis
Physical Absorption Physical Adsorption Pulverized Coal Combustion
Polar amplification Point Source Physical trapping
Particulate matter Permit

Power Plant CCS - Glossary

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