Introduction to SCR flue gas denitrification system, advantages, characteristics and principles of SCR denitration

SCR flue gas denitrification systemit 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 can be used in coal-fired power station, cement plant, building materials, iron and steel plant, metallurgy and other industries，Strong adaptability,Mature and stable technology,Environment friendly,Good selectivity,Less secondary pollution，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 flue gas denitrification system 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 flue gas denitrification system 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.、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 flue gas denitrification system technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR flue gas denitrification system technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.、Technology has been developed and applied for many years, and it is mature and stable. The SCR flue gas denitrification system has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the SCR flue gas denitrification system technology has good adaptability and adjustability, and can be adjusted and optimized according to different flue gas components and emission requirements.、Intelligent control is gradually realized. By integrating advanced control system and sensor technology, the SCR flue gas denitrification system 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.，at runtime,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 following is to introduce the SCR flue gas denitrification system:

1、Brief introduction of SCR flue gas denitrification system

SCR flue gas denitrification systemdelective catalytic reduction technology is an efficient flue gas denitrification technology.，is a popular SCR flue gas denitrification system，is based on One-combustion energy saving is a SCR flue gas denitrification system newly developed by One-combustion energy saving。

SCR flue gas denitrification system

2、SCR flue gas denitrification system principle

SCR flue gas denitrification systemthe principle is simple.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.，customizable。

SCR flue gas denitrification system

3、Video analysis of SCR flue gas denitrification system

One-combustion energy saving provides customers with on-site high-definition video, fully demonstrates the advantages of on-site SCR flue gas denitrification systemt operation, and helps customers to deeply understand the product production process and production site, and gain favorable comments and recognition from customers.。

SCR flue gas denitrification system

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4、SCR flue gas denitrification system function

SCR flue gas denitrification systemmultifunctional, with functions such as Improve working conditions, Improve working conditions, environmental protection, Promote sustainable development and Improve energy efficiency，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.。

SCR flue gas denitrification system

5、SCR flue gas denitrification system structure

The SCR flue gas denitrification system has the following structure

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. Reactor

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

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. Reactor

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

5. Reducing agent storage and supply system

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

SCR flue gas denitrification system

6、Advantages of SCR flue gas denitrification system principle

SCR flue gas denitrification systemat the start of the operation,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 overall structural design is simple, diverse and beautiful.，it is mainly composed of control system, Flue gas mixing and distribution system, Temperature control and monitoring system, Catalyst supply system and Catalyst reactor，the main features are Mature and stable technology, Less secondary pollution, Stable operation, Stable operation and Promote sustainable development，it has the functions of environmental protection, Improve energy efficiency, Promote sustainable development, Promote sustainable development and Improve working conditions，is a kind of SCR flue gas denitrification system manufactured by One-combustion energy saving。

SCR flue gas denitrification system

SCR flue gas denitrification systemthe advantage is 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 flue gas denitrification system technology to maintain efficient denitrification capability in a wider temperature range and more complex flue gas conditions.、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 flue gas denitrification system 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.、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 flue gas denitrification system 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.、It is famous for its high-efficiency denitration ability, which can usually reach more than 90% denitration efficiency. This means that the SCR flue gas denitrification system 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.、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 flue gas denitrification system technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR flue gas denitrification system technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.，features include energy saving and environmental protection, Strong adaptability, Mature technology, Efficient denitration and energy saving and environmental protection，multifunctional, with functions such as Improve working conditions, environmental protection, Promote sustainable development, Improve energy efficiency and Improve working conditions。