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Introduction to Low temperature SCR denitrification and SCR flue gas denitrification working principle

2025-5-27

Low temperature SCR denitrificationis an efficient, stable and environment-friendly flue gas denitrification technology.。

1、Brief introduction of Low temperature SCR denitrification

Low temperature SCR denitrificationis an efficient, stable and environment-friendly flue gas denitrification technology.,It is mostly used in Promote sustainable development, environmental protection, Improve product quality, Meet the requirements of environmental protection, Flue gas denitrification, environmental protection and so on,was developed and designed by One-combustion energy saving。

Low temperature SCR denitrification

Low temperature SCR denitrification

2、Structural characteristics of Low temperature SCR denitrification

The Low temperature SCR denitrification structure is introduced as follows:

  1. Reducing agent supply
  2. 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. Reducing agent storage and supply system
  4. Used to store and supply reducing agent (such as ammonia or urea solution) to the reactor.

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

  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.

Low temperature SCR denitrification

Low temperature SCR denitrification

3、Physical picture of Low temperature SCR denitrification

The following picture is a panoramic shot of One-combustion energy saving Low temperature SCR denitrification,the product looks atmospheric., which is trustworthy.。

Low temperature SCR denitrification

Low temperature SCR denitrification

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

4、Low temperature SCR denitrification use

Low temperature SCR denitrificationMainly used forMeet the requirements of environmental protection,Flue gas denitrification,Improve product quality,Promote sustainable development andenvironmental protection,delective catalytic reduction technology is an efficient flue gas denitrification technology.,customizable。

Low temperature SCR denitrification

Low temperature SCR denitrification

5、Working principle of Low temperature SCR denitrification

Low temperature SCR denitrificationthe principle is simple.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.,It can be used for Meet the requirements of environmental protection, Flue gas denitrification, Improve product quality, Promote sustainable development, Improve product quality, environmental protection and so on,it has the functions of environmental protection, Improve working conditions, Improve energy efficiency, Promote sustainable development and environmental protection,the full name is selective catalytic reduction technology, which is an advanced flue gas denitrification technology.,favorable price。

Low temperature SCR denitrification

Low temperature SCR denitrification

6、Brief introduction of Low temperature SCR denitrification

Low temperature SCR denitrificationthat is, selective catalytic reduction technology is a technology used to reduce the emission of nitrogen oxides in flue gas.,at 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 SCR 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.、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 Low temperature SCR denitrification technology to maintain efficient denitrification capability in a wider temperature range and more complex flue gas conditions.、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 Low temperature SCR 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 is famous for its high-efficiency denitration ability, which can usually reach more than 90% denitration efficiency. This means that the Low temperature SCR 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 Low temperature SCR 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 SCR denitrification technology can also reduce operating costs and improve the economic benefits of enterprises by recycling heat energy.。

Low temperature SCR denitrification

Low temperature SCR denitrification

Low temperature SCR denitrificationfeatures include Efficient denitration, Strong adaptability, Strong adaptability, High denitration efficiency and Stable operation,multifunctional, with functions such as Improve working conditions, environmental protection, Improve working conditions, Improve energy efficiency and Promote sustainable development。