The denitration | exhaust gas generator SCR denitration

Release time:

2023-01-03

In recent years, the situation of air pollution in our country is very serious. It becomes nitrogen oxides (NOX) become one of the main pollutants of air pollution in our country.

I. Present situation of gas generator tail gas denitrification industry

In recent years, the situation of air pollution in our country is very serious. It becomes nitrogen oxides (NOX) become one of the main pollutants of air pollution in our country.

From 2014 on current program of energy saving emission reduction in our country, it was clearly put forward that the scope of binding indexes of emission reduction of nitrogen oxides.

1. "Emission Standards for Air Pollutants in Thermal Power Plants" (GB 13223-2011) stipulates that the NOx emission limit of other fuel gas turbine units is 120mg/m3.
2, "stationary internal combustion engine air pollutant emission standard" the most gaoNOx emission standard: NOx <75ng/Nm3.
3, all kinds of fuel gas engine and gas turbine put into use in our country, exhaust contains a certain concentration of NOx, if not through exhaust gas denitration treatment, it is very difficult to achieve the national emission standards.

2. Commonly used ways to control NOx emission

1. End treatment. Selective catalytic reduction SCR technology is currently the most widely used emission technology in the world. It mainly uses chemical or physical methods to treat the exhaust gas after NOx discharge, and decomposes NOx into harmless nitrogen (N2) and water (H2O) within a certain temperature range.
2. Combustion control technology. In order to improve the combustion process of the internal combustion engine, the main body of the internal combustion engine for purification of low emission combustion technology.

3. Advantages of Green Valley SCR denitration technology

1. Under different temperature changes, the conversion rate of NOx is more than 95%.
2, SCR denitration equipment is widely used in power plants, glass kilns, cement kilns, various industrial furnaces, pyrolysis incinerators and other denitration products.
3. Integrated design of SCR denitration equipment and flue gas waste heat recovery reduces the operation cost of post-treatment equipment.
4. The original unit body is not reformed, which can run stably under any load and meet the emission standard controlled at 30mg/Nm3.
5, low back pressure design, less impact on engine efficiency.
6, independent catalyst development, safe and reliable.
7, simple installation, short commissioning cycle, does not affect the use of boiler.

News center