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

SCR denitration equipmentthe full name is selective catalytic reduction technology, which is an advanced flue gas denitrification technology.，Environment friendly,Efficient denitration,Environmental protection and pollution-free,Strong adaptability,Strong adaptability，is carefully developed by One-combustion energy saving combined with advanced technology。The following is to introduce the SCR denitration equipment:

1、Brief introduction of SCR denitration equipment

SCR denitration equipmentit 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 based on One-combustion energy saving is a SCR denitration equipment newly developed by One-combustion energy saving。

SCR denitration equipment

2、Structural advantages of SCR denitration equipment

The SCR denitration equipment has the following structure

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. control system

The whole SCR denitration equipment is automatically controlled to ensure the stable operation of the system and achieve the expected denitration effect.

3. 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.

4. Reducing agent storage and supply system

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

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 denitration equipment

3、SCR denitration equipment principle

SCR denitration equipmentAmmonia 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 denitration equipment

4、SCR denitration equipment characteristics

The SCR denitration equipment features are as follows:

1. energy saving and environmental protection

This technology can effectively reduce NOx emission in flue gas, reduce environmental pollution, and at the same time, it has stable operation and low energy consumption, which meets the requirements of energy saving and environmental protection.

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. high efficiency

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

4. High denitration efficiency

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

5. Small secondary pollution

The by-products produced in the SCR denitration equipment opening process are nitrogen and water vapor, and there is no secondary pollution problem.

SCR denitration equipment

5、SCR denitration equipment function

SCR denitration equipmentit has the functions of environmental protection, Promote sustainable development, Improve energy efficiency, Improve working conditions and environmental protection，the product looks beautiful.，is a SCR denitration equipment，has been favored by more and more customers.。

SCR denitration equipment

SCR denitration equipmentThe initial investment of technology may be high, but in the long run, its economic feasibility is remarkable. The high-efficiency denitration ability of SCR denitration equipment technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR denitration equipment 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 denitration equipment 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.、It is famous for its high-efficiency denitration ability, which can usually reach more than 90% denitration efficiency. This means that the SCR denitration equipment 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.、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 denitration equipment 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 denitration equipment 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.，at work,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.，Promote sustainable development,Mature technology,Good selectivity,Stable operation,Less secondary pollution。