Calorific value comparison of biomass pellets and fire coal. The carbon content of biomass pellet fuel is less, the highest carbon content of biomass pellet fuel is only about 50%, and the oxygen content of biomass pellet fuel is higher than that of fire coal, so the calorific value of biomass pellet fuel is lower than that of coal combustion.
Ignition comparison of biomass pellets and fire coal. The hydrogen content in biomass pellet fuel is slightly higher, resulting in higher volatile matter. The carbon in biomass pellet fuel combines with hydrogen to form hydrocarbons with low molecular weight. After decomposition at a certain temperature, volatile matter is released. Therefore, biomass pellet fuel is easier to ignite than fire coal.
Burn out rate comparison of biomass pellets and fire coal. Biomass pellet fuel has low density, loose texture and is easy to burn out. The density of coal is higher than that of biomass pellet fuel, which results in less residual heat of biomass pellet fuel than that of coal-fired carbon. Therefore, biomass pellet fuel burns more fully and has a higher utilization rate.
Sulphur content comparison of biomass pellets and fire coal. The sulfur content of biomass pellet fuel is only 0.02%-0.12%, while the sulfur content of coal combustion is generally 0.5%-6%. So biomass pellet fuel is more environmentally friendly than coal, and there is no need to install desulfurization device.
CO2 emissions comparison of biomass pellets and fire coal. The carbon dioxide emission of biomass pellet fuel is almost zero, while that of power plant boilers range from 2.36 to 2.37 tons of carbon dioxide per ton of coal, and that of industrial boilers is 2.6 tons of carbon dioxide per ton of coal. So biomass pellet fuel emits less carbon dioxide harmful gases than fire coal.
Ash and slag utilization situation comparison of biomass pellets and fire coal. The ash after burning biomass pellet fuel is a kind of high potassium fertilizer, which can make chemical fertilizer and realize the recycling of waste, while coal-burning cinder brings more hydrological and land pollution. So biomass pellet fuel has better ash and slag utilization than after coal combustion.
Biomass pellet fuel combustion belongs to waste utilization, realizing resource recycling, and is harmless to environmental protection, while coal combustion brings more waste pollution and air pollution.
Combustion carrier comparison of biomass pellets and fire coal. In principle, biomass boilers specially designed for biomass pellet fuel can burn coal with higher combustion efficiency and lower emissions. Coal-fired boilers are generally backward in design and can not burn biomass pellet fuel without retrofitting. Moreover, the retrofitted coal-fired boilers have poor combustion efficiency and low utilization rate of biomass pellet fuel.
Comparison of thermal efficiency utilization of biomass pellet fuel and coal-fired boiler. The thermal efficiency of biomass pellet fuel boilers is as high as 85%, and that of coal-fired boilers is generally 65%. Therefore, coal-fired boilers waste more resources and have low utilization rate.
Price comparison of biomass pellets and fire coal. The price of biomass pellet fuel is lower than that of high-quality anthracite and sulfur-less coal, and the price of biomass pellet fuel is higher than that of low-quality coal. Comparing the comprehensive cost, the operating cost of biomass pellet fuel is almost the same as that of coal combustion.
Based on the analysis of the ten comparisons between biomass pellet fuel and coal-fired fuel, it is a general trend that biomass pellet fuel will replace coal-fired fuel. In order to leave a productive environment for our children and grandchildren, it is our responsibility to eliminate coal combustion and promote biomass pellet fuel. If you have any questions about how to make biomass pellet fuel at home, please consult us.