HYBRID POWER GENERATION PLANT FOR CO2 CAPTURE

In this paper, the issues and challenges of capturing CO2 from a PC power plant have been summarized and assessed, and a hybrid power generation configuration is developed which features a gas turbine cogeneration unit supplying steam for stripping CO2, thereby decoupling the CO2 capture from the steam cycle of PC units. The hybrid power generation cases are modeled by using GTPro (TM) and SteamPro (TM). The performance of the hybrid power plant is compared with the base case that uses extraction from the steam cycle. Retrofitting existing power plants by this hybrid concept is also carried out; performance comparison and economic analysis indicate that this kind of retrofitting is attractive to utilities with PC power generation fleet.