Due to its advantages in terms of CO2 reduction and capture

oxy-fuel combustion technology has attracted much attentions in the field of coal-fired boilers in recent years. The theoretical research progress of coalfired boiler oxy-fuel combustion technology in recent years was described in terms of the effects of oxy-fuel combustion on the combustion

heat transfer and pollutant emission characteristics of coal-fired boilers. The application progress of oxy-fuel combustion on the conventional coal-fired boilers and fluidized bed boilers in recent years was introduced. The ignition

heat transfer and pollution emission of oxygen/fuel staged oxy-fuel combustion

and the ignition

heat transfer and pollution emission of oxy-fuel combustion in a pressurized fluidized bed

and the automatic control of oxy-fuel demonstration project

and integration optimization of oxy-fuel combustion system should be the research difficulties and key points. In addition to seeking technological breakthroughs in the most costly oxygen production technology

further studies should be carried out on the staged oxy-fuel combustion

the pressurized oxy-fuel combustion and the system integration optimization.