Abstract
Combustibility of heavy oil was investigated with high temperature air combustion technology. The combustion with low NOx and soot emission was achieved even using heavy oil C and LCO as fuels. Strong luminous flame observed at high air ratio enlarged became transparent with some pale luminous flame at low air ratio. The NOx emission level for the combustion of heavy oil C was ∿100ppm keeping the low soot emission level. Introducing the high temperature (∿1000℃) steam could decrease the NOx emission even in the combustion of heavy oil C. Under the low NOx combustion condition, uniform distribution of temperature ure was confirmed.
