Biomass comes from the CO2 in the air, and then generates CO2 after combustion, so it will not increase the content of CO2 in the air, so biomass is cleaner than mineral energy.
Biomass sawdust, corn, wheat, rice, beans, peanuts, yam and firewood with moisture content of 15-25% below 50 mm are pressed into rod-shaped solid pellet biofuels with a cross-section size of 33-40 mm and a length of more than 15 cm. After briquetting, the particle ratio is large and the volume is small, which is convenient for storage and transportation. It is a high-quality solid fuel with high volatile. It can be directly burned. Its calorific value can reach 3200-4000 kcal. It has the characteristics of flammability, low ash content and low cost. It can replace wood, raw coal, gas and other fuels, and is widely used in heating, domestic stoves, boilers, biomass power plants, etc.