Introduction to SCR catalyst denitrification system and SCR denitration system working principle

SCR catalyst denitrification systemthe full name is selective catalytic reduction technology, which is an advanced flue gas denitrification technology.，multifunctional, with functions such as Improve energy efficiency, Promote sustainable development, Promote sustainable development, environmental protection and Improve energy efficiency。

1、Brief introduction of SCR catalyst denitrification system

SCR catalyst denitrification systemthat is, selective catalytic reduction technology is a technology used to reduce the emission of nitrogen oxides in flue gas.，is a popular SCR catalyst denitrification system，is a SCR catalyst denitrification system newly developed by One-combustion energy saving。

SCR catalyst denitrification system

2、Functional advantages of SCR catalyst denitrification system

SCR catalyst denitrification systems have the following advantages.

1. economic viability

The initial investment of this technology may be high, but in the long run, its economic feasibility is remarkable. The high-efficiency denitration ability of SCR catalyst denitrification system technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR catalyst denitrification system technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.

2. Intelligent control and convenience of operation

The SCR catalyst denitrification system has gradually realized intelligent control. By integrating advanced control system and sensor technology, the SCR catalyst denitrification system can monitor the composition and emission concentration of flue gas in real time, and automatically adjust the injection amount of reductant and the active state of catalyst to ensure the stability and reliability of denitrification efficiency.

3. Diversity and high efficiency of catalysts

There are many kinds of catalysts used in the SCR catalyst denitrification system technology, including vanadium-based catalysts and titanium-based catalysts, which can promote the chemical reaction between reductant and NOx at low temperature. At the same time, the active components and carrier materials of the catalyst are constantly being developed and improved to improve its catalytic efficiency and service life. This enables the SCR catalyst denitrification system technology to maintain high efficiency of denitration in a wider temperature range and more complex flue gas conditions.

4. Environmental friendliness

The by-products produced by SCR catalyst denitrification system technology are mainly nitrogen and water vapor, which are harmless to the environment and will not cause secondary pollution. Compared with the traditional wet flue gas denitrification technology, the SCR catalyst denitrification system technology does not need to use a lot of water resources and will not produce pollutants such as wastewater, which is more in line with the requirements of environmental protection and sustainable development.

5. High efficiency denitration capacity

Gate is famous for its high efficiency of denitration, which can usually reach more than 90% denitration efficiency. This means that the SCR catalyst denitrification system technology can significantly reduce the concentration of nitrogen oxides (NOx) in flue gas and make it meet strict environmental protection emission standards. This high-efficiency denitration ability mainly benefits from the promotion of catalyst, which makes the chemical reaction between reductant and NOx more rapid and thorough.

SCR catalyst denitrification system

3、Structural characteristics of SCR catalyst denitrification system

The SCR catalyst denitrification system structure is introduced as follows:

1. Reducing agent storage and supply system

Used to store and supply reducing agent (such as ammonia or urea solution) to the reactor.

2. Reactor

It is the core component of SCR catalyst denitrification system technology, and it is equipped with catalyst to promote the chemical reaction between reductant and NOx.

3. Reducing agent supply

Reducing agents such as liquid pure ammonia or ammonia water (aqueous solution of ammonia) are evaporated and mixed with diluted air or flue gas.

4. Flue gas mixing and distribution system

Ensure that the flue gas and reducing agent are fully mixed in the reactor to improve the denitrification efficiency.

5. control system

The whole SCR catalyst denitrification system is automatically controlled to ensure the stable operation of the system and achieve the expected denitration effect.

SCR catalyst denitrification system

4、SCR catalyst denitrification system principle

SCR catalyst denitrification systemat work,Ammonia gas or other suitable reducing agent (such as urea aqueous solution) is sprayed into the flue gas upstream of the catalyst at high temperature. Under the action of catalyst, the reducing agent selectively reacts with nitrogen oxides (NOx) in flue gas to generate pollution-free nitrogen and water vapor. Because NH3 is selective, it only reacts with NOx and basically does not react with O2, so this technology is called selective catalytic reduction denitrification.，Commonly used inImprove product quality,Flue gas denitrification,Improve product quality,Meet the requirements of environmental protection,environmental protection and so on，it has the functions of Improve working conditions, Promote sustainable development, environmental protection, Improve energy efficiency and Improve working conditions，is developed and improved by One-combustion energy saving。

SCR catalyst denitrification system

5、Introduction of advantages of SCR catalyst denitrification system

The advantages of SCR catalyst denitrification system are as follows:

1. Intelligent control and convenience of operation

The SCR catalyst denitrification system has gradually realized intelligent control. By integrating advanced control system and sensor technology, the SCR catalyst denitrification system can monitor the composition and emission concentration of flue gas in real time, and automatically adjust the injection amount of reductant and the active state of catalyst to ensure the stability and reliability of denitrification efficiency.

2. Mature and stable technology

SCR catalyst denitrification system technology has been developed and applied for many years, and the technology is mature and stable. The SCR catalyst denitrification system has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the SCR catalyst denitrification system technology has good adaptability and adjustability, and can be adjusted and optimized according to different flue gas components and emission requirements.

3. Diversity and high efficiency of catalysts

There are many kinds of catalysts used in the SCR catalyst denitrification system technology, including vanadium-based catalysts and titanium-based catalysts, which can promote the chemical reaction between reductant and NOx at low temperature. At the same time, the active components and carrier materials of the catalyst are constantly being developed and improved to improve its catalytic efficiency and service life. This enables the SCR catalyst denitrification system technology to maintain high efficiency of denitration in a wider temperature range and more complex flue gas conditions.

4. Wide applicability

SCR catalyst denitrification system technology is suitable for many industries and processes, such as coal-fired power plants, iron and steel smelting, cement production and so on. These industries will produce a large number of NOx emissions in the production process, and the SCR catalyst denitrification system technology can provide effective denitrification solutions for them. In addition, the gate technology can be adjusted and optimized according to different flue gas components and emission requirements to meet different denitration requirements.

5. Environmental friendliness

The by-products produced by SCR catalyst denitrification system technology are mainly nitrogen and water vapor, which are harmless to the environment and will not cause secondary pollution. Compared with the traditional wet flue gas denitrification technology, the SCR catalyst denitrification system technology does not need to use a lot of water resources and will not produce pollutants such as wastewater, which is more in line with the requirements of environmental protection and sustainable development.

SCR catalyst denitrification system

6、SCR catalyst denitrification system characteristics

The SCR catalyst denitrification system features are as follows:

1. Small secondary pollution

The by-products produced in the SCR catalyst denitrification system opening process are nitrogen and water vapor, and there is no secondary pollution problem.

2. energy saving and environmental protection

This technology can effectively reduce NOx emission in flue gas, reduce environmental pollution, and at the same time, it has stable operation and low energy consumption, which meets the requirements of energy saving and environmental protection.

3. selectivity

Under the action of catalyst, the reducing agent mainly reacts with NOx selectively, but less with other components (such as oxygen) in flue gas, thus reducing unnecessary consumption.

4. High denitration efficiency

The denitration efficiency of SCR catalyst denitrification system technology can reach more than 90%, and it is a widely used post-combustion denitration technology at present.

5. Stable operation and stability

The SCR catalyst denitrification system technology runs stably and can meet the requirements of flue gas treatment under different working conditions.

SCR catalyst denitrification system

SCR catalyst denitrification systemThe overall structural design is simple, diverse and beautiful.，it has the structure of Catalyst reactor, Temperature control and monitoring system, Catalyst supply system, Flue gas mixing and distribution system and control system，is an efficient, stable and environment-friendly flue gas denitrification technology.。