Patent ID: 9657604
Date: 2017-05-23
CPC Classifications: F01K,F02C,F22B,F28D,Y02E

Claim:
1. A cogeneration plant for burning a fossil fuel with pure oxygen in a gas turbine cycle for generation of a combustion gas utilized for heating water into steam in a steam cycle, the cogeneration plant comprising: the gas turbine cycle, and the steam cycle, wherein the gas turbine cycle comprises: wherein the steam cycle comprises: a cooler/condenser that receives the combustion gas is provided downstream the heat recovery steam generator, wherein the cooler/condenser is configured to cool the combustion gas and cause a humid fraction of the combustion gas to be partly condensed into the liquid water and drained, wherein downstream a heat exchange in the cooler/condenser, the combustion gas is divided by the division module into the recirculated first combustion gas flow and second combustion gas flow, a heater that is configured to heat and de-liquefy the recirculated first combustion gas flow with a cooling medium from the cooler/condenser after being heated up via the heat exchange in the cooler/condenser, which the heater is provided downstream the division module and upstream the compressor for heating and de-liquefying the recirculated first combustion gas flow before supplying the recirculated first combustion gas flow to the compressor, and a second condenser to which the second combustion gas flow is submitted in order to cool down a mixture of water and carbon dioxide, wherein the second condenser is configured such that in the second condenser a part of the humid fraction of the second combustion gas flow is condensed into water, which is separated from the rest of the mixture of water and carbon dioxide.