Advancement of SCR / SNCR Technology in Electrical Precipitator
Introduction
Today, air pollution caused by industry emissions has become an urgent environmental problem. The electricity precipitator is the most reliable, efficient, economical and most widely used equipment for controlling industrial smoke emissions. The latest advancement in electrical precipitator technology is the use of SCR / SNCR (Selective Catalytic Reduction / Selective Non-Catalytic Reduction) systems. This new technology helps to significantly reduce the concentration of air pollutants and is being used to control emissions from both industrial and municipal sources.
Background of SCR/SNCR Technology
The SCR / SNCR technology was developed in the 1950s to reduce nitrogen oxide (NOX) emissions from industrial sources. This technology has become widely used in the past decade, initially to control NOX emissions from power plants and other large combustion sources. Today, it is used to control NOX emissions from smaller sources such as boilers, furnaces, hot-air furnaces and diesel engines. SCR / SNCR systems can also be used in combination with other emission control systems such as wet scrubber and electrostatic precipitator to reduce particulate matter and other pollutants.
How SCR / SNCR works
The working principle of the SCR / SNCR technology is based on chemical reactions that convert NOX into harmless by-products such as nitrogen and water vapor. The SCR /SNCR system injects a controlled amount of a reducing agent, such as ammonia or urea, into the chemical reaction chamber. The reducing agent reacts with the NOX and other pollutants at high temperatures to form harmless by-products.
Advantages of SCR/SNCR Technology
The advantages of using SCR / SNCR systems are numerous. These systems are very efficient at reducing NOX emissions and can reduce emissions as much as 95% or more. They also require less maintenance and monitoring than other types of air pollution control systems. As well, SCR / SNCR systems are relatively easy to install and operate, and they can be monitored remotely. In addition, these systems are quite cost-effective, making them an attractive choice when compared to other emission control systems.
Applications of SCR/SNCR Technology
SCR / SNCR systems can be used to control NOX emissions from power plants, industrial boilers, furnaces, hot-air furnaces and diesel engines. They can also be used in combination with other emission control systems such as wet scrubbers and electrostatic precipitators to reduce particulate matter from the atmosphere. These systems can also be used to reduce the concentration of volatile organic compounds (VOCs) emissions from many different types of sources.
Conclusion
The advancement of SCR / SNCR technology has helped to significantly reduce the concentration of air pollutants released into the atmosphere. This technology is easy to install and operate, requires less maintenance and monitoring, and is quite cost- effective. SCR / SNCR systems can be used to reduce NOX, VOCs, and particulate matter from various sources, making them an attractive choice when compared to other emission control technologies. With continued research and development, the advancement of SCR / SNCR technology is likely to help reduce air pollution even further in the near future.
