Introduction to SCR low-temperature catalytic absorption denitrification, SCR denitration specifications, model parameters

SCR low-temperature catalytic absorption denitrificationis an efficient, stable and environment-friendly flue gas denitrification technology.，is developed and improved by One-combustion energy saving。The following is to introduce the SCR low-temperature catalytic absorption denitrification:

1、Brief introduction of SCR low-temperature catalytic absorption denitrification

SCR low-temperature catalytic absorption denitrificationis an efficient, stable and environment-friendly flue gas denitrification technology.，the 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.，it has the functions of Promote sustainable development, Improve energy efficiency, environmental protection, Improve working conditions and Promote sustainable development，The overall structural design is simple, diverse and beautiful.，it has the structure of Catalyst reactor, Flue gas mixing and distribution system, Temperature control and monitoring system, control system and Catalyst supply system，be of high quality。

SCR low-temperature catalytic absorption denitrification

2、SCR low-temperature catalytic absorption denitrification application

SCR low-temperature catalytic absorption denitrificationWidely used in Improve product quality, environmental protection, Flue gas denitrification, Promote sustainable development and environmental protection，Strong adaptability,Strong adaptability,Less secondary pollution,Promote sustainable development,High denitration efficiency，the advantage is 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 low-temperature catalytic absorption 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.、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 low-temperature catalytic absorption denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR low-temperature catalytic absorption denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.、Intelligent control is gradually realized. By integrating advanced control system and sensor technology, the SCR low-temperature catalytic absorption 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.、Technology has been developed and applied for many years, and it is mature and stable. The SCR low-temperature catalytic absorption denitrification has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the SCR low-temperature catalytic absorption denitrification technology has good adaptability and adjustability, and can be adjusted and optimized according to different flue gas components and emission requirements.、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 low-temperature catalytic absorption 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.，it has the functions of environmental protection, Improve energy efficiency, Improve working conditions, Promote sustainable development and Improve working conditions，be loved by our customers.。

SCR low-temperature catalytic absorption denitrification

3、SCR low-temperature catalytic absorption denitrification function

SCR low-temperature catalytic absorption denitrificationmultifunctional, with functions such as environmental protection, Improve energy efficiency, Promote sustainable development, Improve energy efficiency and environmental protection，widely used in cement plant, cement plant, coal-fired power station, building materials, metallurgy and other fields，it is an ideal choice for customers to buy SCR low-temperature catalytic absorption denitrification。

SCR low-temperature catalytic absorption denitrification

4、Functional advantages of SCR low-temperature catalytic absorption denitrification

SCR low-temperature catalytic absorption denitrifications have the following advantages.

1. Mature and stable technology

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

2. Intelligent control and convenience of operation

The SCR low-temperature catalytic absorption denitrification has gradually realized intelligent control. By integrating advanced control system and sensor technology, the SCR low-temperature catalytic absorption 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.

3. Diversity and high efficiency of catalysts

There are many kinds of catalysts used in the SCR low-temperature catalytic absorption 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 SCR low-temperature catalytic absorption denitrification technology to maintain high efficiency of denitration in a wider temperature range and more complex flue gas conditions.

4. Wide applicability

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

SCR low-temperature catalytic absorption denitrification

5、Structural advantages of SCR low-temperature catalytic absorption denitrification

The SCR low-temperature catalytic absorption denitrification structure is introduced as follows:

1. 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.

2. control system

The whole SCR low-temperature catalytic absorption 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.

3. Reactor

It is the core component of SCR low-temperature catalytic absorption 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. 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.

SCR low-temperature catalytic absorption denitrification

6、Structural characteristics of SCR low-temperature catalytic absorption denitrification

The SCR low-temperature catalytic absorption denitrification has the following structure

1. Reducing agent storage and supply system

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

2. 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.

3. control system

The whole SCR low-temperature catalytic absorption denitrification is automatically controlled to ensure the stable operation of the system and achieve the expected denitration effect.

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. 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.

SCR low-temperature catalytic absorption denitrification

SCR low-temperature catalytic absorption 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.，it 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.，at work,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.。