Introduction to Low temperature catalytic reduction flue gas denitrification and SCR flue gas denitrification working principle

Low temperature catalytic reduction flue gas denitrificationthe full name is selective catalytic reduction technology, which is an advanced flue gas denitrification technology.，The overall structural design is relatively simple and compact.，the main structure includes Temperature control and monitoring system, Catalyst reactor, control system, Flue gas mixing and distribution system, Catalyst supply system and so on，at 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.。

1、Brief introduction of Low temperature catalytic reduction flue gas denitrification

Low temperature 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.，in the course of work,Under the action of catalyst, reducing agents (such as ammonia, urea, etc.) react with nitrogen oxides in flue gas to convert them into harmless nitrogen and water vapor.，the product looks beautiful.。

Low temperature catalytic reduction flue gas denitrification

2、Advantages of Low temperature catalytic reduction flue gas denitrification principle

Low temperature catalytic reduction flue gas denitrificationthe principle is simple.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.，the product looks atmospheric.，it has the characteristics of Efficient denitration, energy saving and environmental protection, Strong adaptability, Environmental protection and pollution-free and energy saving and environmental protection，widely used inGas power plant,coal-fired power station,building materials,metallurgy,iron and steel plant and other industries，favorable price，be of high quality。

Low temperature catalytic reduction flue gas denitrification

3、Low temperature catalytic reduction flue gas denitrification work site real shot

One-combustion energy saving Low temperature catalytic reduction flue gas denitrification is completely upgraded, savoring the beauty of details.。

Low temperature catalytic reduction flue gas denitrification

Note: All the pictures in this article were taken by One-combustion energy saving manufacturer.。

4、Introduction of advantages of Low temperature catalytic reduction flue gas denitrification

The advantages of Low temperature catalytic reduction flue gas denitrification are as follows:

1. Intelligent control and convenience of operation

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

2. 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 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 mainly benefits from the promotion of catalyst, which makes the chemical reaction between reductant and NOx more rapid and thorough.

3. Mature and stable technology

Low temperature catalytic reduction flue gas denitrification technology has been developed and applied for many years, and the technology is mature and stable. The Low temperature catalytic reduction flue gas denitrification has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the Low temperature 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. Wide applicability

Low temperature 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 Low temperature 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.

5. Environmental friendliness

The by-products produced by Low temperature 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 Low temperature 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.

Low temperature catalytic reduction flue gas denitrification

5、Structural characteristics of Low temperature catalytic reduction flue gas denitrification

The Low temperature catalytic reduction flue gas denitrification structure is introduced as follows:

1. 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.

2. Reactor

It is the core component of Low temperature catalytic reduction flue gas denitrification 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. control system

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

5. 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.

Low temperature catalytic reduction flue gas denitrification

Low temperature catalytic reduction flue gas denitrificationIt can be used for Flue gas denitrification, environmental protection, environmental protection, Improve product quality, Flue gas denitrification, Promote sustainable development and so on，features include Mature technology, High denitration efficiency, Good selectivity, Promote sustainable development and Strong adaptability。