Introduction to SCR catalytic oxidation denitrification and SCR denitration advantages and features

SCR catalytic oxidation denitrificationit refers to the process of removing nitrogen oxides from flue gas to reduce environmental pollution. NOx is a pollutant harmful to the atmospheric environment, which has strong irritation and toxicity, and will lead to environmental problems such as acid rain and photochemical smog, and also endanger human health. The main principle of flue gas denitrification technology is to reduce NOx to nitrogen and water by adding appropriate reducing agent or catalyst in the combustion process or flue gas treatment system, so as to reduce NOx emission.。The following is to introduce the SCR catalytic oxidation denitrification:

1、Brief introduction of SCR catalytic oxidation denitrification

SCR catalytic oxidation denitrificationthat is, selective catalytic reduction technology is a technology used to reduce the emission of nitrogen oxides in flue gas.，super quality and competitive price。

SCR catalytic oxidation denitrification

2、SCR catalytic oxidation denitrification structure composition

The SCR catalytic oxidation denitrification has the following structure

1. Temperature control and monitoring

The temperature in the catalyst reactor is maintained within the optimal reaction temperature range through the temperature control and monitoring system.

2. 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.

3. Reducing agent storage and supply system

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

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. Reactor

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

SCR catalytic oxidation denitrification

3、SCR catalytic oxidation denitrification function

SCR catalytic oxidation denitrificationit has the functions of environmental protection, Improve working conditions, Improve energy efficiency, Promote sustainable development and environmental protection，There are many kinds of catalysts used in the technology, including vanadium-based catalysts and titanium-based catalysts, which can promote the chemical reaction between reductant and NOx at a lower 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 catalytic oxidation denitrification technology to maintain efficient denitrification capability in a wider temperature range and more complex flue gas conditions.、Technology has been developed and applied for many years, and it is mature and stable. The SCR catalytic oxidation denitrification has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the SCR catalytic oxidation denitrification technology has good adaptability and adjustability, and can be adjusted and optimized according to different flue gas components and emission requirements.、The 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 catalytic oxidation denitrification 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.、The by-products produced by the 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 catalytic oxidation denitrification 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.、Intelligent control is gradually realized. By integrating advanced control system and sensor technology, the SCR catalytic oxidation denitrification 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.。

SCR catalytic oxidation denitrification

4、SCR catalytic oxidation denitrification principle

SCR catalytic oxidation denitrificationCatalysts are used to promote the selective catalytic reduction reaction between reducing agents (such as ammonia and urea) and NOx in flue gas. Under the action of catalyst, the reductant preferentially reacts with NOx to generate harmless nitrogen and water vapor, but hardly reacts with oxygen in flue gas. This chemical reaction is usually carried out in the temperature range of 200-450℃, and the specific reaction temperature depends on the type of catalyst selected.，widely used in metallurgy, coal-fired power station, Gas power plant, iron and steel plant, building materials and other fields，the advantage is The by-products produced by the 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 catalytic oxidation denitrification 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.、It is famous for its high-efficiency denitration ability, which can usually reach more than 90% denitration efficiency. This means that the SCR catalytic oxidation denitrification 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 is mainly due to the promotion of the catalyst, which makes the chemical reaction between reductant and NOx more rapid and thorough.、Technology has been developed and applied for many years, and it is mature and stable. The SCR catalytic oxidation denitrification has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the SCR catalytic oxidation denitrification technology has good adaptability and adjustability, and can be adjusted and optimized according to different flue gas components and emission requirements.、The initial investment of technology may be high, but in the long run, its economic feasibility is remarkable. The high-efficiency denitration ability of SCR catalytic oxidation denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR catalytic oxidation denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.、The 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 catalytic oxidation denitrification 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.。

SCR catalytic oxidation denitrification

5、Introduction of advantages of SCR catalytic oxidation denitrification

SCR catalytic oxidation denitrifications have the following advantages.

1. Intelligent control and convenience of operation

The SCR catalytic oxidation denitrification has gradually realized intelligent control. By integrating advanced control system and sensor technology, the SCR catalytic oxidation denitrification 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. Diversity and high efficiency of catalysts

There are many kinds of catalysts used in the SCR catalytic oxidation denitrification 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 catalytic oxidation denitrification technology to maintain high efficiency of denitration in a wider temperature range and more complex flue gas conditions.

3. Environmental friendliness

The by-products produced by SCR catalytic oxidation denitrification 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 catalytic oxidation denitrification 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.

4. Wide applicability

SCR catalytic oxidation denitrification 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 catalytic oxidation denitrification 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. Diversity and high efficiency of catalysts

There are many kinds of catalysts used in the SCR catalytic oxidation denitrification 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 catalytic oxidation denitrification technology to maintain high efficiency of denitration in a wider temperature range and more complex flue gas conditions.

SCR catalytic oxidation denitrification

SCR catalytic oxidation denitrificationthe main features are Stable operation, Less secondary pollution, Promote sustainable development, Strong adaptability and Stable operation，It has the functions of environmental protection, Improve product quality, Meet the requirements of environmental protection, Flue gas denitrification and Improve product quality，it is widely used incoal-fired power station,building materials,cement plant,metallurgy,cement plant and other industries。