Patent ID: 9670841
Date: 2017-06-06
CPC Classifications: F02C,F05D,Y02E,Y02T

Claim:
1. An integrated system comprising: a gas turbine system comprising a combustion chamber configured to combust one or more oxidants and one or more fuels in the presence of a compressed recycle stream, wherein the combustion chamber directs a first discharge stream to an expander to generate a gaseous exhaust stream and at least partially drive a main compressor, wherein the one or more oxidants and the one or more fuels are separately provided to the combustion chamber so as to be in a stoichiometric ratio of between 0.9:1 and 1.1:1 in the combustion chamber; and an exhaust gas recirculation system, wherein the main compressor compresses the gaseous exhaust stream and thereby generates the compressed recycle stream; wherein the exhaust gas recirculation system comprises (i) at least one cooling unit configured to receive and cool the gaseous exhaust stream, (ii) at least one blower configured to receive and increase the pressure of the gaseous exhaust stream before directing a cooled recycle gas to the main compressor, (iii) a second cooling unit configured to receive the gaseous exhaust stream from the at least one blower and to adjust a temperature and lower a dew point of the gaseous exhaust stream to the main compressor thereby generating the cooled recycle gas, and (iv) a feed/effluent cross exchanger in series with the second cooling unit configured to adjust the temperature of the cooled recycle gas to achieve a dew point margin of at least about 20° F.