Two categories of biomass fuels, woody fuels and animal wastes, comprise the vast majority of available biomass fuels. Municipal solid waste (MSW) is also a source of biomass fuel but these types of fuel have lower energy densities compared to fossil fuels.
Wood pellets are made from compacted sawdust or woodchips. Often, these are byproducts from sawmills and other industries that use wood. Pellets are formed under heat and pressure, which releases natural plant lignin that holds the pellets together without glue or additives.
Pelleting reduces the moisture content of the product and increases density. This not only makes it ready for shipping and reduces logistics but also gives the product higher energy density.
A fibrous oily pulp surrounds the nut and is covered by a thin smooth skin (exocarp).
The material left after palm-oil extraction contains some residual oil and includes other non-toxic elements.
The properties of the Empty Fruit Bunch (EFB) charcoal briquettes are comparable to those of commercial sawdust charcoal briquettes and a great source of renewable energy fuels. EFB fibre is a viable alternative raw material for the production of charcoal briquettes.