Introduction to Low temperature catalytic reduction denitrification and SCR denitration working principle

Low temperature catalytic reduction 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 a product series that integrates Meet the requirements of environmental protection, Promote sustainable development, environmental protection, Promote sustainable development and Meet the requirements of environmental protection。

1、Brief introduction of Low temperature catalytic reduction denitrification

Low temperature catalytic reduction denitrificationthe full name is selective catalytic reduction technology, which is an advanced flue gas denitrification technology.，at the start of the operation,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.，is based on One-combustion energy saving is an advanced Low temperature catalytic reduction denitrification developed by our company in combination with the actual situation of the industry。

Low temperature catalytic reduction denitrification

2、Structural advantages of Low temperature catalytic reduction denitrification

The Low temperature catalytic reduction denitrification has the following structure

1. 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.

2. control system

The whole Low temperature catalytic reduction denitrification is automatically controlled to ensure the stable operation of the system and achieve the expected denitration effect.

3. 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.

4. Temperature control and monitoring system

It is used to monitor and control the temperature of the reactor to ensure that the chemical reaction is carried out in the optimal temperature range.

5. Reducing agent storage and supply system

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

Low temperature catalytic reduction denitrification

3、Functional advantages of Low temperature catalytic reduction denitrification

Low temperature catalytic reduction denitrifications have the following advantages.

1. Mature and stable technology

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

2. Environmental friendliness

The by-products produced by Low temperature catalytic reduction 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 Low temperature catalytic reduction 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.

3. 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 Low temperature catalytic reduction 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 mainly benefits from the promotion of catalyst, which makes the chemical reaction between reductant and NOx more rapid and thorough.

4. Intelligent control and convenience of operation

The Low temperature catalytic reduction denitrification has gradually realized intelligent control. By integrating advanced control system and sensor technology, the Low temperature catalytic reduction 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.

5. Wide applicability

Low temperature catalytic reduction 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 Low temperature catalytic reduction 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.

Low temperature catalytic reduction denitrification

4、Low temperature catalytic reduction denitrification application

Low temperature catalytic reduction denitrificationCommonly used inImprove product quality,Flue gas denitrification,environmental protection,Promote sustainable development,Improve product quality and so on，widely used incement plant,building materials,iron and steel plant,metallurgy,coal-fired power station and other industries，be loved by our customers.。

Low temperature catalytic reduction denitrification

5、Advantages of Low temperature catalytic reduction denitrification principle

Low temperature catalytic reduction denitrificationAmmonia 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 an efficient, stable and environment-friendly flue gas denitrification technology.，generally, it is composed of Temperature control and monitoring system, Flue gas mixing and distribution system, Catalyst supply system, Catalyst reactor, control system and other major components，it has the functions of Improve energy efficiency, Improve working conditions, Promote sustainable development, Improve energy efficiency and environmental protection，it is an ideal choice for customers to buy Low temperature catalytic reduction denitrification。

Low temperature catalytic reduction denitrification

6、Low temperature catalytic reduction denitrification video live broadcast

On-site aerial photography of Low temperature catalytic reduction denitrification。

Low temperature catalytic reduction denitrification

As you can see from the live video.，One-combustion energy saving Simple structure and advanced technology.，it is mainly composed of Temperature control and monitoring system, Flue gas mixing and distribution system, Catalyst reactor, Catalyst supply system and control system。

Low temperature catalytic reduction denitrificationit is widely used inmetallurgy,cement plant,Gas power plant,coal-fired power station,building materials and other industries，at runtime,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.。