SPECIFICATION AND CLASSES OF SOLID BIOFUELS IN EUROPEAN STANDARDS

Solid biofuels are specified according to origin, source, major traded forms and properties. In the hierarchical classification system the main origin - based solid biofuel groups are woody, herbaceous and fruit biomass, and blends and mixtures. The second level of classification describes fuels from different sources within the main groups, primarily stating whether the biomass is a virgin material, a by-product or a residue from the industry. Presented is in connection with the classification scheme solid biofuels, examples of specification properties for briquettes, pellets, straw bales and woody pellets high quality classes are recommended for smaller scale appliances.