... , the biomass briquette is characterized by high density, small in size, better combustion, capable as the substitute for the ... firewood. This bio-fuel briquette is 50-70mm in diameter, occurs in the hollow quadrangular or hexagonal cylinder with a 15 ... can be used to heat boiler,fireplace,etc for warm in house. carbonization furnace Flowchart of the Charcoal / Biomass Briquetting Technology: ...