Patent ID: 6269624
Filing Date: 2001-08-07
Classification: F01K,F02C,F05D,Y02E

Abstract:
A method of operating a power station plant, the power station plant having a compressor unit, at least one combustion chamber and at least one turbine, and a recuperator downstream from the turbine, the method comprising:supplying a cycle medium containing CO.sub.2 and a fuel and the oxygen required for the oxidation thereof in the combustion chamber,conducting the cycle medium from the low-pressure side of the turbine to the recuperator,passing the medium through a heat sink downstream of the recuperator, the heat sink being operated at least at ambient temperature,feeding the medium back into the compressor unit,withdrawing a portion of the cycle medium downstream of the compressor and upstream of the recuperator and conducting the withdrawn portion into a condensing plant, andcontrolling the charging pressure of the cycle processs by extracting any excess cycle medium.