First, the status quo of gas generator tail gas denitrification industry
In recent years, the situation of air pollution in our country is very serious. It has become one of the main pollutants of air pollution in our country. It is an important work to control the emission of nitrogen oxides.
Since 2014, China has clearly put forward the scope of nitrogen oxide emission reduction into binding indicators on the current energy conservation and emission reduction plan.
1. The Emission Standard for Air Pollutants in Thermal Power Plants (GB 13223-2011) stipulates that the NOx emission limit for other fuel gas turbine units is 120mg/m3.
2, “Fixed internal combustion engine air pollutant emission standard” the most gaoNOx emission standard: NOx <75ng/Nm3.
3, China’s various fuel gas engines and gas turbines put into use, the exhaust contains a certain concentration of NOx, if not through the exhaust denitrification treatment, it is difficult to meet the national emission standards.
2. Commonly used ways to control NOx emission
1. End treatment. Selective catalytic reduction SCR technology is the most used emission technology in the world at present. It mainly uses chemical or physical methods to treat the exhaust gas after NOx is discharged, 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 to purify the low emission combustion technology.
Third, GRVNES SCR denitration technology advantages
1. Under different temperature changes, the conversion rate of NOx exceeds 95%.
2, SCR denitration equipment has a wide range of applications, power plants, glass kilns, cement kilns, various industrial furnaces and pyrolysis incinerators and other denitration products.
3, SCR denitration equipment and flue gas waste heat recovery integrated design, reduce the operating cost of post-treatment equipment.
4, the original unit body is not reformed, can run stably under any load, in line with emission standards controlled at 30mg/Nm3.
5, low back pressure design, relatively small impact on engine efficiency.
6, independent catalyst development, safe and reliable.
7, simple installation, short commissioning period, does not affect the use of the boiler.
Post time: Dec-27-2023