With the continuous improvement of environmental protection awareness, the development and utilization of clean energy has received more and more attention. As a renewable energy source, biogas has the advantages of clean, efficient and renewable, and has become an important direction for the adjustment of rural energy structure. However, the nitrogen oxides (NOx) produced during the biogas power generation process pose a serious hazard to the environment and human health. Therefore, the research and application of denitrification technology of biogas generator has become a hot issue in the field of environmental protection.
1. The principle of denitrification technology of biogas generator.
The denitrification technology of biogas generator is mainly to reduce the generation and emission of nitrogen oxides in the combustion process, so as to achieve the purpose of reducing environmental pollution. At present, the denitrification technologies of biogas generators mainly include low-nitrogen combustion technology, selective catalytic reduction (SCR) technology and selective non-catalytic reduction (SNCR) technology.
1. Low nitrogen combustion technology: By optimizing the design of the burner, the combustion temperature is reduced and the generation of nitrogen oxides is reduced. This method has little investment, but the effect of denitrification is limited.
2. Selective Catalytic Reduction (SCR) technology: under the action of a catalyst, nitrogen oxides are converted into harmless nitrogen and water. This method has a good denitrification effect, but the investment and operating costs are high.
3. Selective Non-Catalytic Reduction (SNCR) technology: Reduces nitrogen oxides to nitrogen and water without catalysts. This method has lower investment and operating costs, but the denitrification effect is slightly inferior to SCR technology.
2 Research progress of denitrification technology for biogas generators.
In recent years, scholars at home and abroad have conducted extensive research on the denitrification technology of biogas generators. Studies have shown that low-nitrogen combustion technology can effectively reduce the formation of nitrogen oxides, but the denitrification effect is limitedSCR technology and SNCR technology have achieved good denitrification effect in practical applications, but there are still some problems, such as catalyst poisoning and high operating costs.
In order to solve these problems, the researchers have improved and optimized the denitrification technology of biogas generators. For example, a new catalyst is used to improve the denitrification efficiency of SCR technologyBy improving the design of the burner, the organic combination of low-nitrogen combustion and SCR technology is realizedDevelopment of new SNCR catalysts to reduce operating costs, etc.
3. Application prospect of denitrification technology for biogas generators.
With the continuous improvement of environmental protection policies and the improvement of people's awareness of environmental protection, the application prospect of denitrification technology of biogas generator is very broad. First of all, the denitrification technology of biogas generators can effectively reduce nitrogen oxide emissions and reduce environmental pollution, which is in line with the national policy guidance of energy conservation and emission reduction. Secondly, the denitrification technology of biogas generator can improve the efficiency of biogas power generation and reduce operating costs, which is conducive to the promotion and application of biogas power generation projects. Finally, research and application can help promote the development of new energy technologies and provide technical support for sustainable development.