On February 28, China Rubber (Maanshan) Chemical Industry Co., Ltd. 70 tons of boiler flue gas SCR ultra-clean emission denitrification renovation project completed environmental protection acceptance through the technical verification of the expert group.　 　　In order to meet the special emission limits of “oil-fueled boilers or gas turbine wheels”, China National Rubber Corporation invested 9.3 million yuan to implement 70-ton boiler flue gas SCR ultra-clean emission denitrification transformation. The project started construction in September 2018 and entered the commissioning phase in November.
　　During the acceptance monitoring conducted in mid-January 2019, the maximum concentration of NO_X outlet was 7mg/m³, which met the special emission limit requirement of atmospheric pollutants (100mg/m³), and achieved the goal of SCR flue gas denitration efficiency not less than 92%. 
　　China Rubber (Maanshan) Chemical Industry Co., Ltd. was established on January 28, 2000. It is a wholly foreign-owned enterprise invested by China Rubber (Singapore) Co., Ltd. There are 4 carbon black production lines, designed to produce 95,000 tons of carbon black per year.