What is a SCR catalytic flue gas denitrification? Introduction to the principle of SCR flue gas denitrification structure

SCR catalytic flue gas denitrificationis an efficient, stable and environment-friendly flue gas denitrification technology.，it is mainly composed of Catalyst supply system, control system, Flue gas mixing and distribution system, Temperature control and monitoring system and Catalyst reactor，This SCR catalytic flue gas denitrificationThe structure is novel, special, advanced, reasonable and scientific.。The following is to introduce the SCR catalytic flue gas denitrification:

1、Brief introduction of SCR catalytic flue gas denitrification

SCR catalytic 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.，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.，Commonly used inImprove product quality,Flue gas denitrification,environmental protection,Improve product quality,Flue gas denitrification and so on，it has the characteristics of Environment friendly, Good selectivity, Environmental protection and pollution-free, Efficient denitration and Strong adaptability，the advantage is 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 catalytic flue gas denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR catalytic flue gas 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 catalytic 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.、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 catalytic 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.、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 catalytic 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.、Technology has been developed and applied for many years, and it is mature and stable. The SCR catalytic flue gas denitrification has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the SCR catalytic flue gas denitrification technology has good adaptability and adjustability, and can be adjusted and optimized according to different flue gas components and emission requirements.。

SCR catalytic flue gas denitrification

2、SCR catalytic flue gas denitrification principle

SCR catalytic flue gas denitrificationthe 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.，the full name is selective catalytic reduction technology, which is an advanced flue gas denitrification technology.。

SCR catalytic flue gas denitrification

3、Functional advantages of SCR catalytic flue gas denitrification

SCR catalytic flue gas denitrifications have the following advantages.

1. Diversity and high efficiency of catalysts

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

2. Intelligent control and convenience of operation

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

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 SCR catalytic 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.

4. Environmental friendliness

The by-products produced by SCR catalytic 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 SCR catalytic 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.

5. Mature and stable technology

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

SCR catalytic flue gas denitrification

4、Introduction of SCR catalytic flue gas denitrification characteristics

SCR catalytic flue gas denitrification has the following characteristics

1. Environmental protection

The final products of SCR catalytic flue gas denitrification technology are harmless nitrogen and water vapor, which will not cause secondary pollution to the environment.

2. Mature technology

After years of development and application, SCR catalytic flue gas denitrification technology is very mature and has a wide application prospect.

3. 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.

4. Environmental protection

The final products of SCR catalytic flue gas denitrification technology are harmless nitrogen and water vapor, which will not cause secondary pollution to the environment.

5. High denitration efficiency

The denitration efficiency of SCR catalytic flue gas denitrification technology can reach more than 90%, and it is a widely used post-combustion denitration technology at present.

SCR catalytic flue gas denitrification

5、SCR catalytic flue gas denitrification structure composition

The SCR catalytic flue gas denitrification structure is introduced as follows:

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. 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.

3. Reducing agent storage and supply system

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

4. 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.

5. Reactor

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

SCR catalytic flue gas denitrification

6、SCR catalytic flue gas denitrification price concessions

The SCR catalytic flue gas denitrification price is introduced as follows:

1. product configuration

There is a direct connection between configuration and specifications. Generally speaking, with different specifications, its configuration scheme will be different, and the selection of products' materials and parts will be different, so the sales price of products will be different. It is not difficult to see that the configuration and price of SCR catalytic flue gas denitrification are closely related. One-combustion energy saving has comprehensively measured the configuration and sales price of products when designing SCR catalytic flue gas denitrification, which not only ensures that the functions of products can meet the actual needs of customers, but also can be in terms of price.

2. quality

The selling price of excellent quality products is also high, so users should also consider the quality and price of products comprehensively when purchasing products, so as to buy products with high cost performance.

3. geographical position

Different provinces and regions have different consumption levels, different market positioning and different prices.

4. product function

The more functions a product has, the higher its manufacturing cost, so that the product can be used by customers as much as possible, which can create more useful value for customers, so the price will be higher.

5. Model size

One-combustion energy saving is a manufacturer specializing in the production of different products, the SCR catalytic flue gas denitrification of various specifications and models manufactured are affordable, reliable in quality, good in performance and perfect after-sales, which is a good choice for everyone to buy SCR catalytic flue gas denitrification.

SCR catalytic flue gas denitrification

SCR catalytic flue gas denitrificationit has the structure of Catalyst supply system, control system, Temperature control and monitoring system, Flue gas mixing and distribution system and Catalyst reactor，This productThe overall structural design is simple and novel.，It is famous for its high-efficiency denitration ability, which can usually reach more than 90% denitration efficiency. This means that the SCR catalytic 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 is mainly due to the promotion of the catalyst, which makes the chemical reaction between reductant and NOx more rapid and thorough.、Intelligent control is gradually realized. By integrating advanced control system and sensor technology, the SCR catalytic 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.、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 catalytic 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.、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 catalytic flue gas denitrification technology to maintain efficient denitrification capability in a wider temperature range and more complex flue gas conditions.、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 catalytic flue gas denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR catalytic flue gas denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.，it has the functions of Improve working conditions, environmental protection, Improve working conditions, Promote sustainable development and Improve energy efficiency。