Combustion behavior of pulverized coal using blending coal has been observed with Pyroprobe. Produced gas emission behavior has been investigated by high-speed continuous analysis with FTIR. The following results are acquired. (1) Blending coal can improve combustion rate of coal inferior to of the combustion rate, and it changes depending on mixture rate. (2) Blending coal shows homogeneous combustion behavior such as the single coal. (3) Burnout time of blending coal is not proportional to the mixture ratio, and it tends to become longer. Furthermore, even if it is the same fuel ratio, burnout time of blending coal become longer than single coal.
