Patent ID: 7284362
Filing Date: 2007-10-23
Classification: F01K,F25J,Y02E

Abstract:
1. An integrated air separation and power generation system comprising: a gas turbine unit including an air compressor, a gas turbine expander coupled to the air compressor and a combustion unit located upstream from the expander to feed drive gas to the expander; an air separation unit to receive compressed air from the air compressor and produce at least two product streams including a stream of primarily oxygen, a portion of the oxygen stream produced by the air separation unit being fed to the combustion unit; a second turbine coupled to the air compressor and located downstream from the expander to receive drive gas discharged from the expander; wherein each of the expander and the second turbine drive the air compressor when drive gas flows through the expander and the second turbine; a third turbine coupled to the air compressor to drive the air compressor when drive gas flows through the third turbine; wherein the combustion unit is located downstream from the third turbine to receive drive gas discharged from the third turbine; and a second combustion unit disposed directly upstream from the third turbine to feed drive gas to the third turbine.