Beijing Gas Boiler "low nitrogen transformation" can reduce 50% in single pot

The Beijing Environmental Protection Bureau announced on the 19th that since this year, the “low-nitrogen transformation” project for Beijing gas boilers has started to implement more than 8,500 tons of steam, and it is estimated that the reduction of nitrogen oxides will be about 1,616 tons.
As an important precursor of PM2.5, nitrogen oxides have become one of the focuses of Beijing's air pollution control. Zhai Xiangyang, researcher at the Beijing Environmental Protection Bureau’s Atmospheric Office, introduced that at present, Beijing has implemented a “low-nitrogen transformation” for old gas boilers built before the end of 2007, adopting replacement burners, flue gas recirculation, and overall replacement. , Single boilers reduce emissions by more than 50%.
Since 1998, Beijing has continued to carry out the transformation of “coal-fired boilers to clean energy”. The major pollutants such as sulfur dioxide, nitrogen oxides, and PM10 have had significant emission reduction effects and have basically solved the “non-heating season” coal-burning pollution.
It is reported that the “Boiler Air Pollutant Emission Standard” set by the Beijing Municipal Government on July 1, 2015 further tightened the NOx emission limit. Starting from April 1, 2017, the "new boiler" will be subject to an emission limit of 30 mg/m3, and 80 mg/m3 will be discharged for "in-use boilers" located in the "high-contamination fuel banned zone". Limit value. The standard is generally equivalent to the European Boiler Emission Standard, which is close to the most stringent emission standard in the United States in southern California.

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