Briquettes is a bio fuel which will be used in boilers..Its made of agriculture waste, forestry waste..it os beem converted into solid cylindrical shape.major residues are rice husk.coffee husk coir pitch jute sticks groundnut shel mustard syalks etc...
Whats briquettes? 'A block of compressed charcoal or coal dust used as fuel'. briquette (or briquet) is a block of flammable matter used as fuel to start and maintain a fire. Common types of briquettes are charcoal briquettes and biomass briquettes.
Some briquettes are compressed and dried brown coal extruded into hard blocks. This is a common technique for low rank coals. They are typically dried to 12-18% moisture, and are primarily used in household and industry.