Patent ID: 6622470
Filing Date: 2003-09-23
Classification: F01K,F02C,F05D,F23L,Y02E,Y02P,Y02T

Abstract:
A semi-closed Brayton cycle power generation system, comprising in combination:a gas compressor having an inlet and an outlet; a combustor downstream of said compressor, said combustor having a fuel port coupled to a source of fuel, an oxidizer port coupled to said compressor outlet and an outlet port for combustion products resulting from combustion of fuel from said source of fuel with oxidizer from said oxidizer port; a turbine downstream of said combustor, said turbine having an input coupled to said combustor outlet port, an output for the combustion products entering said turbine at said input, and a power output; a return duct downstream of said turbine, said return duct receiving at least a portion of the combustion products passing through said output of said turbine and extending to said inlet of said compressor; a gaseous oxygen duct coupled to a source of oxygen and coupled to said return duct in a manner adding oxygen to the combustion products within said return duct; said gaseous oxygen duct located upstream of said gas compressor, such that the oxygen from said gaseous oxygen duct enters said compressor inlet along with the combustion products; wherein a divider is located at least partially upstream of said return duct and downstream of said turbine, said divider dividing a portion of the combustion products passing through said output of said turbine into a separation duct separate from said return duct; wherein a condenser is located downstream of said separation duct, said condenser including a gas outlet and a condensate outlet; and wherein a gas outlet compressor is located downstream from said gas outlet of said condenser, said gas outlet compressor adapted to receive at least a portion of gases exiting said condenser through said gas outlet, said gas outlet compressor adapted to compress the gases passing thereinto to a pressure sufficient to inject the gases into a terrestrial formation taken from the group of terrestrial formations including: underground fissures, deep ocean locations and at least partially depleted oil wells.