What is a Low temperature oxidation method for external denitrification? Introduction to the advantages and characteristics of SCR denitration system functions

Low temperature oxidation method for external denitrificationdelective catalytic reduction technology is an efficient flue gas denitrification technology.，it can be used in building materials, cement plant, Gas power plant, coal-fired power station, building materials and other industries，is based on One-combustion energy saving is carefully developed by One-combustion energy saving combined with advanced technology。

1、Brief introduction of Low temperature oxidation method for external denitrification

Low temperature oxidation method for external denitrificationthat is, selective catalytic reduction technology is a technology used to reduce the emission of nitrogen oxides in flue gas.，at 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 overall structural design is simple and novel.，structure mainly includes: control system, Catalyst supply system, Catalyst reactor, Flue gas mixing and distribution system, Temperature control and monitoring system and so on，it is an ideal choice for customers to buy Low temperature oxidation method for external denitrification。

Low temperature oxidation method for external denitrification

2、Introduction of Low temperature oxidation method for external denitrification characteristics

Low temperature oxidation method for external denitrification has the following characteristics

1. Small secondary pollution

The by-products produced in the Low temperature oxidation method for external denitrification opening process are nitrogen and water vapor, and there is no secondary pollution problem.

2. Environmental protection

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

3. high efficiency

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

4. 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.

5. Strong adaptability

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

Low temperature oxidation method for external denitrification

3、Structural characteristics of Low temperature oxidation method for external denitrification

The Low temperature oxidation method for external denitrification has the following structure

1. Reactor

It is the core component of Low temperature oxidation method for external denitrification technology, and it is equipped with catalyst to promote the chemical reaction between reductant and NOx.

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. 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. Reducing agent storage and supply system

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

5. Reactor

It is the core component of Low temperature oxidation method for external denitrification technology, and it is equipped with catalyst to promote the chemical reaction between reductant and NOx.

Low temperature oxidation method for external denitrification

4、Low temperature oxidation method for external denitrification real shot picture

One-combustion energy saving Low temperature oxidation method for external denitrificationthe product looks beautiful., the picture is taken.。

Low temperature oxidation method for external denitrification

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

5、Low temperature oxidation method for external denitrification principle

Low temperature oxidation method for external 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.，the full name is selective catalytic reduction technology, which is an advanced flue gas denitrification technology.。

Low temperature oxidation method for external denitrification

Low temperature oxidation method for external denitrificationat the start of the operation,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 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 Low temperature oxidation method for external 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.、It is famous for its high-efficiency denitration ability, which can usually reach more than 90% denitration efficiency. This means that the Low temperature oxidation method for external 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.、Technology has been developed and applied for many years, and it is mature and stable. The Low temperature oxidation method for external denitrification has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the Low temperature oxidation method for external denitrification 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 Low temperature oxidation method for external 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 initial investment of technology may be high, but in the long run, its economic feasibility is remarkable. The high-efficiency denitration ability of Low temperature oxidation method for external 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 oxidation method for external denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.。