Denitration equipment | effective countermeasures of gas power plant nitrogen management in iron and steel enterprises


Release time:

2022-12-06

With the continuous development of social economy, industrialization is constantly accelerated and people's living standard is improved, improving people's living environment and air environment has become a social concern issue. The nitrogen oxides (NOx) in the atmosphere can produce acid rain, also destroy the ozone layer, bring us severe weather such as photochemical smog and haze. It becomes the main prevention and control of NOX in our country. NOx is the general term for nitrogen oxides, including NO, NO2, NO3, N2O, N2O3, N2O5 and so on. Our common NOx generation mechanism mainly includes thermal type and fuel type. Thermal NOx generation depends on temperature, concentration and residence time, and fuel type, temperature is the most important factor affecting NOx generation.

With the continuous development of social economy, industrialization is constantly accelerated and people's living standard is improved, improving people's living environment and air environment has become a social concern issue. The nitrogen oxides (NOx) in the atmosphere can produce acid rain, also destroy the ozone layer, bring us severe weather such as photochemical smog and haze. It becomes the main prevention and control of NOX in our country. NOx is the general term for nitrogen oxides, including NO, NO2, NO3, N2O, N2O3, N2O5 and so on. Our common NOx generation mechanism mainly includes thermal type and fuel type. Thermal NOx generation depends on temperature, concentration and residence time, and fuel type, temperature is the most important factor affecting NOx generation. 

Our company for the iron and steel enterprise gas power plant nitrogen oxide control channels are mainly as follows:

1.1 Terminal Management

The end treatment is mainly the control technology after combustion. The main technologies are: selective catalytic reduction (SCR), selective non-catalytic reduction (SNCR) and SCR-SNCR mixed technology, activated carbon adsorption method, ozone oxidation and denitrification technology, among which SCR denitrification technology is the most effective end-treatment technology of NOx.

1.2 Selective Catalytic Reduction (SCR)

SCR technology is used to control NOx in diesel exhaust. Under certain temperature and catalyst, NH3 is used as reducing agent to reduce NOX into N2 and H2O. NH3 selectively reduces NOx rather than reacting with O2 first.

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