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Introduction to SCR oxidation denitrification and SCR denitration working principle

2025-5-27

SCR oxidation denitrificationdelective catalytic reduction technology is an efficient flue gas denitrification technology.。

1、Brief introduction of SCR oxidation denitrification

SCR oxidation denitrificationthat is, selective catalytic reduction technology is a technology used to reduce the emission of nitrogen oxides in flue gas.,it has been widely used in building materials, metallurgy, iron and steel plant, Gas power plant, cement plant and other industries。

SCR oxidation denitrification

SCR oxidation denitrification

2、SCR oxidation denitrification real shot picture

The beauty of SCR oxidation denitrification comes from the detail design.。

SCR oxidation denitrification

SCR oxidation denitrification

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

3、SCR oxidation denitrification structure

The SCR oxidation denitrification structure is introduced as follows:

  1. Flue gas mixing and distribution system
  2. Ensure that the flue gas and reducing agent are fully mixed in the reactor to improve the denitrification efficiency.

  3. Reducing agent supply
  4. 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. Flue gas mixing and distribution
  6. 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.

  7. Catalytic reduction reaction
  8. Under the action of catalyst, the reductant and NOx in flue gas undergo selective catalytic reduction reaction to generate nitrogen and water vapor.

  9. Reducing agent supply
  10. Reducing agents such as liquid pure ammonia or ammonia water (aqueous solution of ammonia) are evaporated and mixed with diluted air or flue gas.

SCR oxidation denitrification

SCR oxidation denitrification

4、Advantages of SCR oxidation denitrification principle

SCR oxidation denitrificationin the course of 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.,multifunctional, with functions such as environmental protection, Improve working conditions, Improve energy efficiency, Improve energy efficiency and Improve working conditions,the advantage is Technology has been developed and applied for many years, and it is mature and stable. The SCR oxidation denitrification has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the SCR oxidation denitrification technology has good adaptability and adjustability, and can be adjusted and optimized according to different flue gas components and emission requirements.、It is famous for its high-efficiency denitration ability, which can usually reach more than 90% denitration efficiency. This means that the SCR oxidation 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.、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 oxidation denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR oxidation denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.、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 oxidation denitrification technology to maintain efficient denitrification capability in a wider temperature range and more complex flue gas conditions.、Intelligent control is gradually realized. By integrating advanced control system and sensor technology, the SCR oxidation 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.,it has the characteristics of Environment friendly, Good selectivity, Less secondary pollution, Strong adaptability and Promote sustainable development,is developed and improved by One-combustion energy saving。

SCR oxidation denitrification

SCR oxidation denitrification

5、SCR oxidation denitrification use

SCR oxidation denitrificationIt is mostly used in Meet the requirements of environmental protection, Improve product quality, Meet the requirements of environmental protection, Promote sustainable development, Flue gas denitrification, environmental protection and so on,is a SCR oxidation denitrification,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 oxidation 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 oxidation denitrification has high reliability and stability, and can maintain stable denitrification efficiency under various working conditions. In addition, the SCR oxidation denitrification technology has good adaptability and adjustability, and can be adjusted and optimized according to different flue gas components and emission requirements.、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 oxidation denitrification technology can significantly reduce the environmental emission cost of enterprises and avoid fines and legal risks due to illegal emissions. In addition, SCR oxidation denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.、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 oxidation 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 SCR oxidation 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.。

SCR oxidation denitrification

SCR oxidation denitrification

6、One-combustion energy saving introduced

One-combustion energy saving, as one of the professional and powerful SCR oxidation denitrification manufacturers in Jinan, Shandong province, produces SCR oxidation denitrification with reliable quality, affordable price and perfect after-sales, which have been successfully practiced in many processing plants at home and abroad.。

One-combustion energy saving

One-combustion energy saving

SCR oxidation denitrificationit is usually composed of Temperature control and monitoring system, Catalyst reactor, Flue gas mixing and distribution system, control system and Catalyst supply system,SCR oxidation denitrificationSimple structure and reliable operation.,the product looks atmospheric.。