Nox treatment | Low temperature SCR denitrification technology: to solve the low temperature problem of industrial flue gas treatment


Release time:

2024-06-14

Global environmental regulations have promoted the application of SCR denitration technology in many fields, and low-temperature SCR technology has high efficiency but faces challenges such as insufficient low-temperature activity and catalyst selectivity. Solutions such as developing new catalysts, optimizing formulations, increasing technological maturity, and using durable materials overcome challenges to promote a wide range of industrial applications, reduce NOx emissions, and improve air quality.

With the improvement of global awareness of environmental protection, governments have introduced a series of strict environmental regulations, which has promoted the application of SCR denitration technology in more fields. SCR denitrification technology is currently our most widely used industrial flue gas denitrification technology, not only in the power industry has been widely used, but also in steel, non-ferrous metals, glass, cement and other industries for the control of NOx emissions in industrial flue gas.

The application of low-temperature SCR denitration technology has been relatively mature in some fields, and for these fields, choosing low-temperature SCR denitration technology can reduce technical risks. In the case of strict NOX emission standards or ultra-low emission, low-temperature SCR denitrification technology can provide higher denitrification efficiency to meet environmental protection requirements, but low-temperature SCR denitrification technology will face various challenges in practical application, how to solve these challenges?

First, the challenges faced by low-temperature SCR denitration technology in practical application are as follows:

1, the problem of insufficient low temperature activity. The decrease of catalyst activity at low temperature will lead to the decrease of denitration efficiency.
2. Catalyst selectivity problem. At low temperatures, side reactions may increase.
3. Low temperature SCR denitration technology has stability and reliability problems.
4, equipment efficiency and life problems, low temperature operating conditions may put higher requirements on the material and design of equipment.

Second, in the face of the problems encountered in the application of low-temperature SCR technology, our solutions are as follows:

1, the development of new low-temperature catalysts, through the development of innovation, these catalysts need to be at lower temperatures, but also can maintain high activity.
2, further optimize the catalyst formulation, improve its selectivity, reduce the generation of by-products.
3, through more experimental research and field experiments to improve the maturity of the technology to ensure long-term stable operation.
4, the use of more durable materials, improve the equipment design to adapt to low temperature environment.
5, the application of intelligent and automation technology to achieve accurate control and operation optimization, for low-temperature SCR denitration system, accurate control, optimize its performance.

Through the implementation of the solution, the challenges of low-temperature SCR denitration technology are overcome in order to promote the wide application in industrial applications. SCR denitration technology can reach more than 95% denitration rate, which is one of the denitration technologies with the highest denitration efficiency. Although SCR denitrification technology is quite mature at present, technological innovation still continues, and the application of SCR denitrification technology helps to reduce NOx emissions in the atmosphere and improve air quality, which is of great significance to environmental protection and human health.