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Air Pollution Control

Flue gas denitration system

LongKing can provide customers with customized flue gas denitration technology solutions for different flue gas working conditions in various industries. One of the independent research and development for coal-fired power plant denitrification device ," Two stage mixed flow SCR denitration technology" is one of the preferred technologies for ultra-low emissions.The "SCR denitrification technology of cement flue gas", which is suitable for the working conditions of cement kiln, is a pioneer of ultra-low nitrogen oxide emission of cement kiln in China.

Part of the technologies have reached the international leading level

More than 200 sets have been applicated，corresponding installed capacity are 100 million kilowatts.

The first cement SCR denitrification demonstration project in China,installed capacity of more than 130,000 tons clinker perday

Won 2 national and provincial science and technology progress awards, 44 authorized patents and 5 invention patents

Key Technology

Two stage mixed flow SCR denitration technology

SCR denitrification technology of cement flue gas

  • The disc cyclotron mixing technology combined with AIG ammonia injection technology which can ensure the denitrification efficiency reach more than 93%.
  • Precisely control the total amount of ammonia injection and partition of ammonia injection，guarantee ammonia escape rate < 2.5ppm
  • Original wing form mixer and two stage mixed flow ammonia spray, realize low-energy consumption and high-efficiency denitration of flue gas.
  • Denitration technology with a wide load range.
  • "High Temperature ESP + SCR Denitrification" Integration Technology
  • The NOxemission concentration of flue gas outlet is less than 50 mg/Nm³,meet the ultra-low emission and environmental protection requirements
  • The ammonia escape is less than 3 mg/Nm³,far lower than the national emission standard
  • High temperature electrostatic precipitator greatly reduces dust concentration and extends catalyst life
  • Cement catalyst, wear resistance, strong resistance to alkali metal poisoning ability
  • Special high-efficiency ash removal systems improve the stability of system operation

Classic Case

SCR ultra-low emission engineering for 5000td cement kiln in Hongchang，Dengfeng，Henan Province

  • SCR ultra-low emission engineering for 5000td cement kiln in Hongchang，Dengfeng，Henan Province

    Hongshan power plant 2X1000MW units SCR flue gas denitration project

    Fujian Datang Ningde Power plant 600MW units SCR flue gas denitration project

    Guangzhou Zhujiang Power plant denitration reducing agent liquid ammonia to urea project

    SCR ultra-low emission engineering for 2500td+2×5000td cement kiln in Xinfeng, Wu'an, Hebei Province

  • Xibaipo power plant 600MW units SCR flue gas denitration project

    SCR ultra-low emission engineering for 5000td cement kiln in Dadi, Henan Province

    SCR ultra-low emission engineering for 5000td cement kiln in1 # line of Hebei Quzhai Kuangfeng Cement Co., LTD

    SCR ultra-low emission engineering for 2×5000td cement kiln in JIANGXI WANGNIANQING CEMENT Co., LTD

    SCR ultra-low emission engineering for 5000td cement kiln in 2 # line of Hebei Quzhai Kuangfeng Cement Co., LTD

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