Boilers play a key role in industrial production and civil heating, nitrogen oxides (NOx) generated in the combustion process pose a serious threat to the environment and human health, with the global awareness of environmental protection and environmental regulations are increasingly strict, boiler low nitrogen environmental protection transformation has become the inevitable choice to achieve green energy and sustainable development.
Nitrogen oxides are one of the main pollutants that form acid rain and photochemical smog, causing damage to the human respiratory system and the ecological environment. During the combustion process of boilers, especially coal-fired boilers, a large amount of NOx will be produced. Therefore, low-nitrogen transformation is an important measure to reduce pollutant emission and improve air quality.
The necessity of boiler low nitrogen transformation:
1, with the development of the economy, countries are more and more stringent requirements for environmental protection, effectively limit the NOx emissions of industrial boilers, in order to reduce the impact on the environment.
2, low nitrogen transformation can reduce the emission of pollutants, while improving combustion efficiency to reduce energy consumption.
3, the low-nitrogen transformation of the boiler helps to reduce NOx emissions, help to reduce the risk of respiratory diseases, and improve public health.
4, energy conservation and emission reduction brought about by the reduction of energy costs and avoid national fines, but also for enterprises to enhance social responsibility and establish a good green image.
Green Valley environmental protection Selective Catalytic Reduction, selective catalytic reduction catalyst (hereinafter referred to as SCR) and reducing agent urea solution (or ammonia, NH₃·H₂O) as the core purification components. This filter unit selectively reduces nitrogen oxides (NOx) from the exhaust gas to nitrogen.
SCR reaction is a complex, multi-component catalytic reduction reaction, the main reactions are as follows:
NH₃·H₂O→NH₃↑+H₂O(Urea hydrolysis reaction)
NO+NO₂+2NH₃→2N₂↑+3H₂O(nitrogen oxide reduction reaction)
4NO+O₂+4NH₃→4N₂↑+6H₂O(Nitric oxide reduction reaction)
2NO₂+O₂+4NH₃→3N₂↑+6H₂O(nitrogen dioxide reduction reaction)
System composition:
Catalyst, PLC control system, compressed air supply system, urea supply system, reactor housing, jet mixing section
Boiler low nitrogen environmental protection transformation is a key action to promote green energy transformation and promote environmental sustainable development, through the use of advanced low nitrogen combustion technology, industrial and civil heat supply to achieve environmental protection upgrade, to ensure the cleanliness and sustainability of heat sources. With the continuous progress and innovation of technology, the low-nitrogen transformation technology will be more efficient and provide a cleaner and sustainable heat source for industrial production and civil heating.
Post time: Aug-29-2024