A comparison of technical features of supercritical circulating fluidized bed boilers

To summarize the technical features of supercritical CFB (circulating fluidized bed) boilers, analyzed were the parameter selection for supercritical boilers and the reasons why CFB boilers are more suitable than pulverized coal boilers for adopting supercritical parameters. The status quo of the study on supercritical CFB boilers both at home and abroad was described in detail. An analysis and comparison of the versions of a supercritical 600 MW CFB boiler for Baima Project proposed by three domestic boiler manufacturers shows that there exists no overriding technical barrier in the design of a supercritical CFB boiler. Moreover, the supercritical CFB combustion technology will become an important clean coal-based power generation technology for coal-fired power plants in China. However, with the in-depth development of research on supercritical CFB boilers, some relevant problems still merit further study and investigation.