Beijing’s heating season will reduce NOx by more than 1,800 tons of nitrogen oxides this year

The heating season is coming soon. Beijing Heating Group’s more than 8,700 steaming boilers are intensively undergoing final equipment installation and renovation. It is expected to reduce emissions of nitrogen oxides by more than 1,800 tons, significantly reducing air pollution. At the Nanchang District of the Fangzhuang Heating Plant, five new boilers have been replaced and workers are nervously welding the steel frame structure. During the transformation process, Beijing Heating Group used the world’s leading low-nitrogen combustion technology, increased the denitrification device, and reduced the nitrogen oxide emissions to 15 milligrams per cubic meter, which is the current international first-class level. It is estimated that each boiler in a heating season can reduce nitrogen oxide emissions by 158,000 tons.

At the same time, the Fangzhuang heating plant adopts the deep waste heat recovery technology. Each boiler can recover 21,000 tons of condensed water in one heating season, and the recovered heat can be added to the heating network. Zhang Lishen, technical manager of Thermal Group, said that through these new technologies, it is estimated that the entire heating season can save 5% to 8%, while further reducing the temperature of the flue gas, the public will not see the white mist discharged from the chimney. It is understood that this year, Beijing’s “clean coal and nitrogen reduction” plan will transform 10,000 tons of steam. Among them, Beijing Thermal Group has transformed more than 8,700 tons of steam, and has now entered the stage of installation of auxiliary equipment and process pipelines, and completed the renovation before the heating season. Tr