Coal-fired Pressurized Partial Gasification Combined Cycle (PPG-CC) Power System

Coal-fired Pressurized Partial Gasification Combined Cycle (PPG-CC) power system is one of the most promise high efficiency and clean process for coal burning power generation at present.The advantage is its high efficiency,environmental favorite character,wide range for the coal to be burned,low invest requirement and easy for the equipments to be domesticalized,and so on.Suitable for the Chinese utilization in various aspect.The gasify media—air and steam are send to the gasify oven after the high temperature pre-heating process,which raised the thermal value of the partially gasified product and consequently the efficiency of the combined cycle generating system.The thermal performance calculating result of the power system is described herein and the thermal performance of which is compared with that of the non-preheating system in which the gasify media for the combined cycle is un-preheated air/steam. Briefly introduces the researching status of the major equipments of the combined cycle system,the pressurized fluid bed partial gasifying oven, the purifier for the gas,the pre-heater for the high temperature air/steam.On the basis of laboratory scale researching result of their own Harbin Power Equipment Company and the National Engineering Research Center for Power Equipment cooperated with the consequent universities and the institutes in China to develop the key technology of combined cycle system as a testing research in order to set the foundation for the constructing of commercial model PPG-CC power plant.