METHOD, SYSTEM AND APPARATUS RELATING TO COMBUSTION TURBINE POWER PLANT WITH EXHAUST GAS RECIRCULATION

摘要

PROBLEM TO BE SOLVED: To provide a method, system and apparatus relating to a combustion turbine power plant with exhaust gas recirculation.SOLUTION: A method is for controlling a power plant that includes a working fluid and a recirculation loop. The power plant includes a combustor operably connected to a turbine. The method includes the steps of: recirculating at least a portion of the working fluid through the recirculation loop; controlling the power plant such that the combustor at least periodically operates at a preferred stoichiometric ratio; and extracting the working fluid from at least one of a first extraction point and a second extraction point positioned on the recirculation loop during the periods when the combustor operates at the preferred stoichiometric ratio.