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Hebei Hanlan Environmental Technology Co., Ltd. invented "a generator set exhaust SCR denitration system approved by the State Intellectual Property Office. Diesel engines have always been due to their high thermal efficiency, low fuel consumption, good power, economy and durability. It is widely used in various power plants, but the harm of its main pollutant NO, has also attracted the attention of governments all over the world. The control of NO emission has gradually become a research hotspot now. It is difficult to meet the problem of only relying on improving the combustion system. Exhaust gas aftertreatment devices must be added to the current requirements. Nitrogen oxides are the main emissions of diesel engines. The NOx emitted by diesel engines is a colorless gas, which is not very toxic, and can cause central nervous system disorders in the human body at high concentrations, and NO can be slowly oxidized to NO2 in the atmosphere. NO2 is a brown gas with a strong irritating smell. It is 5 times more toxic than NO and can react with water to form nitric acid. NO, entering the plant body will also cause a lot of serious harm. In addition, , NOx can make cellulose acetate, cotton yarn and rayon, etc. fade. Moreover, NOx is also one of the main reasons for the formation of acid rain, NOx is also one of the main reasons for the formation of photochemical smog containing toxic ozone near the ground. Combined with China's non-road diesel engine exhaust The current status of post-treatment technology, the use of selective catalytic reduction (SCR) technology is an effective technical way to reduce nitrogen oxide emissions.
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