In the modernization construction, a large amount of straw is burned or discarded in China, which not only causes serious environmental pollution, but also wastes valuable renewable resources. Straw, sawdust and other processed biomass fuels have high density and high calorific value. It has the characteristics of sufficient fuel, low cost, easy to use, clean and hygienic, easy to transport and store, etc. It can be used directly as fuel for straw biomass boiler.
Take corn stover as an example: the calorific value is about 0.8-0.9 times of coal, that is, 1.1t of corn stover forming fuel is equivalent to 1t of coal. If the corn stover shaped fuel is burned in a biomass boiler, its combustion efficiency is 1.3-1.5 times that of a coal-fired boiler. Therefore, the heat utilization rate of 1t corn stover forming fuel is equal to or even higher than that of 1t high-quality coal.
The CO2 emissions from the combustion exhaust gas are close to zero, the NO2 emissions are 14mg/m3, and the SO2 and soot emissions are much lower than the national standards. Therefore, forming biomass fuel has important environmental protection significance and energy saving significance, which lays a foundation for its market application.
At present, the purchase price of crop straw is 160 yuan, the production cost of 1t straw forming fuel is 300 yuan, and the coal price of 1t calorific value is 5500 kcal is about 420 yuan/t. It can be seen that even if the biomass fuel is processed into biomass particles Compared with coal costs, it still has advantages.
Through the above analysis, it is not difficult to see that biomass energy not only has good environmental protection and energy saving significance, but also has good economic benefits, and biomass boilers will also have good market prospects.