With the rapid development of industrialization, the environmental problem of air pollution is becoming more and more serious, among which nitrogen oxides (NOx), as one of the main pollutants, has a great impact on our environment and human health. In order to effectively control NOx emissions, SCR selective catalytic reduction technology has become the most widely used and effective denitrification technology in the world.
Principle of SCR medium temperature denitration technology
The key of SCR denitrification technology is to use a certain catalyst to reduce NOx in flue gas to harmless nitrogen and water vapor. In the temperature range of 280 ° C to 420 ° C, ammonia or other reducing agents are sprayed into the flue gas, and nitrogen and water vapor are generated through chemical reactions. On the surface of the catalyst that occurs during the process, the catalyst can increase the reaction rate so that the reduction reaction can be carried out efficiently at lower temperatures.
At present, the catalyst we use is the honeycomb catalyst, which is the core of SCR technology. The catalyst directly affects the denitration efficiency in terms of performance, and has high activity, high selectivity, good stability and reproducibility. The filter element adopts the folding fan structure, the filter area is larger, the regeneration time is longer, the cleaning is convenient, and can be tailored according to the specific project needs.
With the increasingly strict environmental regulations and the gradual advancement of SCR denitrification technology, on a global scale, whether it is steel, metallurgy, electric power, petrochemical, cement and other industries, will produce a large amount of NOx, effectively control NOx emissions, can greatly improve the quality of the atmosphere.
Through the use of SCR denitration technology, many power plants have realized NOx emissions, environmental pollution has been greatly reduced, has made an important contribution to our country’s environmental protection.
SCR medium temperature denitrification technology occupies an important position in industrial flue gas treatment, which can not only effectively control NOx emissions, but also minimize secondary pollution. With the continuous improvement of environmental protection requirements, SCR technology has a broader application prospect, and SCR technology is widely used in various fields. We expect SCR denitrification technology to further play an important role in the future and contribute to our green environment.
Post time: Apr-08-2024