Mitsubishi Heavy Industries Technical Review
    Vol. 52 No. 2 (2015)   Mitsubishi Hitachi Power Systems
    Technical Papers

    Development of Ultra-low NOX Coal Firing M-PM Burner and Successfully Operational Results

    Keigo Matsumoto,
    Jun Kasai,
    Tomonori Saeki,
    Yasuhiro Takei,
    Takayuki Suto

    There is hope for coal as an important future energy source because of its abundant and evenly distributed reserves. On the other hand, much lower NOX is desired to reduce environmental load and MHPS has, in response to this desire, developed and commercialized an ultra-low NOX burner (M-PM burner) to be used for coal-fired boilers. Verification tests for power generation (with an output of 350-700MW, coal with an intermediate fuel ratio, about 10% ash) using 4 actual boilers in which the burners alone or combustion burners and AA (Additional Air) nozzles were modified demonstrated the achievement of the world's best ultra-low NoX level of 50-110ppm, also finding measures applicable to reducing operating costs.