This paper introduces the practice of burning ultra-low volatile carbon based fuel（semi-coke

gasification carbon residue） in large proportion in a 300 MW power plant pulverized coal boiler. Through the adaptive transformation and numerical simulation calculation of the existing equipment

the goal of blending combustion ratio is greater than 45%

combustion efficiency is greater than 98% and NO

x

emission concentration is not higher than the numerical value before blending combustion.It is of great significance to explore the feasibility of mixing ultra-low volatile carbon based fuel with power plant boiler

promote the application of ultra-low volatile carbon based fuel in the field of power plant coal and form the technical system of ultra-low volatile carbon based fuel for power plant boiler.