Denitration equipment | SCR denitration of thermal power plant

Release time:

2022-11-29

Thermal power generation is a power generation method that uses the heat energy generated by the combustion of combustibles and converts it into electric energy through power generation power devices. However, with the development of social economy and the upgrading of industry, more and more thermal power generation projects have been developed. However, the direct combustion of coal has led to the continuous growth of a large number of SO2, NOx and other gases, causing the increase of acid rain in many parts of China, while at the same time polluting the environment with pulverized coal, posing a threat to people's lives and ecology. Thermal power generation has caused serious pollution. The power industry has become one of the largest pollution emission industries in China, Thermal power generation is to prevent excessive NOx pollution caused by coal combustion in the boiler.

Flue gas denitration technologies mainly include selective catalytic reduction (SCR) and selective non catalytic reduction (SNCR). These two flue gas denitration technologies have their own advantages and disadvantages.

The SCR technology is to arrange the SCR reactor between the economizer and the air preheater of the thermal power unit boiler. The flue gas vertically enters the SCR reactor at 300 ℃ - 400 ℃. NOx is reduced to harmless N2 and H2O through each layer of catalyst modules, and the denitrification rate reaches more than 95%.

Green Valley has independently developed denitration products applicable to power plants, glass kilns, cement kilns and other industrial kilns, as well as pyrolysis incineration and other fields. It can customize options according to different scenarios in different regions of customers, and can also recommend integrated dedusting and denitration products.

News center