Biofuels can replace wood, coal, liquefied natural gas, are widely ... After crushing and pressing, it can be used as fuel with high energy.What is straw charcoal?A green fuel ... 0.8-1.4g/cm3. Durable to use, calorie can reach 3500-55004. Convenient to store and transport. 5. ... fertilizerApplication area of charcoal: (the market of straw charcoal)can replace firewood, raw coal, liquefied gas, widely used in ...