Biofuels, due to their state of concentration, can be divided into solid, liquid and biogas in the gaseous form. Solid fuels can be used for energy purposes in direct combustion, gasification and pyrolysis processes. They are for example:
The diversity of starting material and the need to adapt technology and power make biofuels used in various forms. Wood in the form of slabs, flaked (chips, cuttings, sawdust, wood dust) and compacted (briquettes, pellets). Straw and other non-lignite biofuels are used in the form of compacted cubes and bales, chopped as well as briquettes and pellets.
Global benefits are associated with a reduction in the negative environmental impact of fossil fuels (pollution emissions, waste generation, soil and landscape degradation), an opportunity to increase revenues for agriculture, forestry and horticulture, and to create new jobs in the sector of harvesting and preparation biofuel.