Compared with coal, biomass pellet fuel has the following advantages:
The environmental benefits are significant: the amount of carbon dioxide produced when the biomass pellet fuel is burned is approximately equal to the amount of carbon dioxide absorbed during its growth process, which can realize the carbon cycle and help slow down the greenhouse effect. Coal combustion emits a large amount of carbon dioxide, which is one of the important factors leading to global climate warming. Moreover, biomass pellet fuel does not contain harmful components such as sulfur and phosphorus, and will not produce pollutants such as sulfur dioxide, nitrogen oxides and phosphorus pentoxide during combustion, which can effectively reduce the formation of acid rain and pollution to the atmosphere. Coal combustion will release a large amount of such harmful gases, seriously affecting the air quality.
Renewable: Biomass pellet fuel comes from renewable resources such as crop straw and forestry waste, and its resources are widely and sustainable. As long as there is agricultural and forestry production, there will be a continuous supply of raw materials, which can reduce the dependence on non-renewable fossil fuels. Coal is a non-renewable energy with limited reserves and will gradually dry up as it is mined and used.
High combustion efficiency: The biomass pellet fuel has been processed and has high density, high calorific value, and high combustion efficiency. Compared with traditional biomass fuels, it burns more fully and utilizes energy more effectively. Although the calorific value of biomass pellet fuel is slightly lower than that of coal, in actual use, due to its more thorough combustion, the heat utilization efficiency is higher, and the residual, solid emissions and sulfur dioxide emissions after combustion are far lower than the emissions from coal combustion.
Cleanliness and hygiene: Biomass pellet fuel is clean and hygienic, and it is easy to feed materials. It can reduce the labor intensity of workers and greatly improve the working environment. There is very little ash slag after combustion, which can greatly reduce the site where coal slag is stacked and reduce the cost of slag output. At the same time, the burned ash is a high-quality organic potassium fertilizer of extremely high quality, which can be recycled and profitable.
High safety: Coal has certain safety risks during mining, transportation and storage, such as gas explosion, coal dust explosion, etc. Biomass pellet fuel is relatively safe and does not have these safety hazards.
Widely used: Biomass pellet fuel is suitable for various heat source equipment, such as boilers, hot air furnaces, etc., and can meet the energy needs in different fields. In some regions and industries with high environmental protection requirements, biomass pellet fuel is becoming more and more widely used.
Promote the development of circular economy: The production and use of biomass pellet fuel can drive the industrial development of waste materials reuse in agriculture, forestry, and by-products, and promote the development of circular economy. For example, the recycling of crop straw can increase farmers' income while reducing the pollution of the environment by straw burning.