NOx treatment | Denitrification technology of recycled aluminum alloy and application of SCR denitrification equipment


Release time:

2024-05-23

Aluminum alloy is widely used in many fields, and impurities such as nitrogen oxides must be removed in the regeneration process. SCR denitrification technology can effectively remove nitrogen oxides in aluminum alloy and improve product quality. In aluminum smelting furnace, SCR denitrification technology realizes low nitrogen transformation, reduces pollutant emission, improves energy efficiency, and brings double benefits.

As a kind of lightweight and high-strength material, aluminum alloy has been widely used in aviation, automobile, construction and other fields. However, in the process of aluminum alloy regeneration, the removal of nitrogen and other impurities has become the key to improve product quality. This paper mainly discusses the development of denitrification technology of recycled aluminum alloy and its application in actual production.

By recycling waste aluminum alloy materials, the aluminum alloy obtained after reprocessing can become recycled aluminum alloy. This process not only saves resources, but also reduces environmental pollution. However, the regeneration process will produce nitrogen oxides, and denitrification technology is a key step to ensure the quality of aluminum alloys.

In the process of aluminum alloy production, nitrogen and other impurities in aluminum alloy are removed by denitrification technology. These impurities can affect the mechanical properties and corrosion resistance of the aluminum alloy, thereby reducing the service life and safety of the product. SCR denitrification technology has been applied in many fields, including thermal power plants, smelters, steel plants, kilns, boilers and smelting furnace smelting, especially in the field of smelting flue gas denitrification in aluminum smelting furnace, SCR denitrification technology is also applicable, although the flue gas denitrification treatment in this field is still in its infancy, but the relevant pollutant emission standards are constantly updated and improved.

Whether SCR denitrification equipment is required for the production of recycled aluminum alloys depends on the specific production process, emission standards and environmental requirements. If the recycled aluminum alloy production process produces nitrogen oxides that need to be controlled, then the use of SCR denitrification equipment will be an effective solution. SCR denitrification technology through the installation of SCR (selective catalytic reduction) equipment in the flue gas treatment of aluminum smelting furnace to achieve low nitrogen transformation, SCR denitrification technology is an efficient flue gas denitrification technology, under the action of a certain temperature and catalyst, the nitrogen oxide (NOx) reduction into harmless nitrogen (N₂) and water (H₂O). The coupling mode of SCR denitrification improves the utilization rate of denitrification agent, reduces ammonia escape, and further reduces the concentration of nitrogen oxides in flue gas.

SCR denitrification system in the field of ultra-low emission of nitrogen oxides to achieve compact structure design, intelligent, accurate injection, forecasting alarm, data acquisition management, remote control, online transmission and other functions, to meet the national environmental requirements, to achieve ultra-low emission of nitrogen oxides and ammonia escape less than 3ppm requirements. Through these technical measures, SCR denitrification technology can achieve low nitrogen transformation, effectively reduce pollutant emissions, improve energy utilization efficiency, reduce energy consumption, and bring double economic and environmental benefits to enterprises.