Patent ID: 7503178
Filing Date: 2009-03-17
Classification: C01B,F02C,F23C,F23D,F23R

Abstract:
1. A thermal power plant with sequential combustion and reduced CO 2 emissions, which includes the following components, which are connected in series via in each case at least one flow passage: a combustion feed air compressor unit, a first combustion chamber, a high-pressure turbine stage, a second combustion chamber and a low-pressure turbine stage, it being possible for the second combustion chamber and/or the low-pressure turbine stage to be supplied with a cooling gas stream for cooling purposes, wherein there is a recirculation line which feeds at least some of the exhaust-gas stream emerging from the low-pressure turbine stage to a compressor unit, wherein there is a cooling line, which feeds at least some of the compressed exhaust-gas stream emerging from the compressor unit to the second combustion chamber and/or the low-pressure turbine stage as a cooling gas stream for cooling purposes, and wherein a CO