Introduction to Low temperature catalyst denitrification, advantages, characteristics and principles of SCR denitration

Low temperature catalyst denitrificationthat is, selective catalytic reduction technology is a technology used to reduce the emission of nitrogen oxides in flue gas.，usually used in Gas power plant, coal-fired power station, building materials, metallurgy, iron and steel plant and other fields，is a popular Low temperature catalyst denitrification，Mainly used forFlue gas denitrification,environmental protection,Improve product quality,Meet the requirements of environmental protection andPromote sustainable development，it is widely used in coal-fired power station, cement plant, Gas power plant, building materials and metallurgy。

1、Brief introduction of Low temperature catalyst denitrification

Low temperature catalyst 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.，is a Low temperature catalyst denitrification。

Low temperature catalyst denitrification

2、Introduction of advantages of Low temperature catalyst denitrification

Low temperature catalyst denitrifications have the following advantages.

1. Mature and stable technology

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

Low temperature catalyst 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 catalyst 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.

4. 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 catalyst 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.

5. 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 Low temperature catalyst denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, Low temperature catalyst denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.

Low temperature catalyst denitrification

3、Physical picture of Low temperature catalyst denitrification

Provide a variety of specifications and models of Low temperature catalyst denitrification, high-definition picture list.。

Low temperature catalyst denitrification

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

4、Low temperature catalyst denitrification principle

Low temperature catalyst denitrificationat runtime,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 a popular Low temperature catalyst denitrification，it is an ideal choice for customers to buy Low temperature catalyst denitrification。

Low temperature catalyst denitrification

5、Low temperature catalyst denitrification characteristics

Low temperature catalyst denitrification has the following characteristics

1. Environmental protection

The final products of Low temperature catalyst denitrification technology are harmless nitrogen and water vapor, which will not cause secondary pollution to the environment.

2. 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.

3. Strong adaptability

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

4. high efficiency

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

5. high efficiency

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

Low temperature catalyst denitrification

6、Low temperature catalyst denitrification structure composition

The Low temperature catalyst denitrification structure is introduced as follows:

1. Flue gas mixing and distribution

The mixed reducing agent and flue gas are fully mixed in the mixing tube and evenly distributed to the catalyst reactor through the distribution system.

2. 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.

3. 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.

4. Reducing agent storage and supply system

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

5. control system

The whole Low temperature catalyst denitrification is automatically controlled, including the adjustment of reducing agent supply, flue gas flow and temperature, so as to ensure the stable operation of the system and achieve the expected denitrification effect.

Low temperature catalyst denitrification

Low temperature catalyst 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 a common Low temperature catalyst denitrification。