What is a Catalytic reduction flue gas denitrification? Introduction to the advantages, characteristics, and principles of the SCR flue gas denitrification

Catalytic reduction flue gas 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.，It is famous for its high-efficiency denitration ability, which can usually reach more than 90% denitration efficiency. This means that the Catalytic reduction flue gas 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.、Intelligent control is gradually realized. By integrating advanced control system and sensor technology, the Catalytic reduction flue gas 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.、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 Catalytic reduction flue gas 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.、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 Catalytic reduction flue gas denitrification technology to maintain efficient denitrification capability in a wider temperature range and more complex flue gas conditions.、The initial investment of technology may be high, but in the long run, its economic feasibility is remarkable. The high-efficiency denitration ability of Catalytic reduction flue gas denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, Catalytic reduction flue gas denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.，the main structure includes control system, Temperature control and monitoring system, Catalyst supply system, Flue gas mixing and distribution system, Catalyst reactor and so on，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.，is a kind of high quality and low price Catalytic reduction flue gas denitrification。

1、Brief introduction of Catalytic reduction flue gas denitrification

Catalytic reduction flue gas denitrificationdelective catalytic reduction technology is an efficient flue gas denitrification technology.，Efficient denitration,Economically feasible,Stable operation,Less secondary pollution,Mature and stable technology，multifunctional, with functions such as Improve working conditions, Improve energy efficiency, environmental protection, Improve working conditions and Improve energy efficiency，the product looks beautiful.，has been favored by more and more customers.。

Catalytic reduction flue gas denitrification

2、Catalytic reduction flue gas denitrification characteristics

The Catalytic reduction flue gas denitrification features are as follows:

1. 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.

2. Strong adaptability

Catalytic reduction flue gas denitrification technology can meet the needs of flue gas denitrification under different working conditions and has a wide range of applications.

3. High denitration efficiency

The denitration efficiency of Catalytic reduction flue gas denitrification technology can reach more than 90%, and it is a widely used post-combustion denitration technology at present.

4. high efficiency

Gate technology can effectively remove NOx from flue gas, and the denitrification efficiency can usually reach more than 90%.

5. Small secondary pollution

The by-products produced in the Catalytic reduction flue gas denitrification opening process are nitrogen and water vapor, and there is no secondary pollution problem.

Catalytic reduction flue gas denitrification

3、Catalytic reduction flue gas denitrification advantage

The advantages of Catalytic reduction flue gas denitrification are as follows:

1. Diversity and high efficiency of catalysts

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

2. Wide applicability

Catalytic reduction flue gas 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 Catalytic reduction flue gas 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.

3. Mature and stable technology

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

4. 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 Catalytic reduction flue gas denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, Catalytic reduction flue gas denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.

5. Environmental friendliness

The by-products produced by Catalytic reduction flue gas 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 Catalytic reduction flue gas 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.

Catalytic reduction flue gas denitrification

4、Catalytic reduction flue gas denitrification structure

The Catalytic reduction flue gas denitrification 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. Catalytic reduction reaction

Under the action of catalyst, the reductant and NOx in flue gas undergo selective catalytic reduction reaction to generate nitrogen and water vapor.

3. Reactor

It is the core component of Catalytic reduction flue gas denitrification technology, and it is equipped with catalyst to promote the chemical reaction between reductant and NOx.

4. 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.

5. control system

The whole Catalytic reduction flue gas denitrification is automatically controlled to ensure the stable operation of the system and achieve the expected denitration effect.

Catalytic reduction flue gas denitrification

5、Advantages of Catalytic reduction flue gas denitrification principle

Catalytic reduction flue gas denitrificationat work,Catalysts 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.，features include Strong adaptability, Promote sustainable development, Mature technology, Strong adaptability and Good selectivity，multifunctional, with functions such as environmental protection, Promote sustainable development, Promote sustainable development, Improve working conditions and Improve energy efficiency。

Catalytic reduction flue gas denitrification

6、Catalytic reduction flue gas denitrification use

Catalytic reduction flue gas denitrificationIt is mostly used in Flue gas denitrification, Promote sustainable development, Flue gas denitrification, environmental protection, Improve product quality, Meet the requirements of environmental protection and so on，it has the functions of environmental protection, Promote sustainable development, Improve energy efficiency, environmental protection and Improve working conditions，it is an ideal choice for customers to buy Catalytic reduction flue gas denitrification。

Catalytic reduction flue gas denitrification

Catalytic reduction flue gas denitrificationit is widely used iniron and steel plant,metallurgy,Gas power plant,building materials,coal-fired power station and other industries，is an efficient, stable and environment-friendly flue gas denitrification technology.。