Patent ID: 7290403
Filing Date: 2007-11-06
Classification: C10J,F02C,F05D,F25J

Abstract:
1. A method for producing energy using a gas turbine associated with an air separation unit, comprising: a) admitting air into said air separation unit, b) extracting at least one of an oxygen stream or a nitrogen stream from said air separation unit, c) compressing said oxygen stream with a first compressor, said first compressor being located downstream of said air separation unit, d) compressing said nitrogen stream with a second compressor, said second compressor being located downstream of said air separation unit, e) directing said oxygen stream toward a gasifier, f) directing said nitrogen stream toward a combustion chamber of said gas turbine, g) controlling at least one parameter associated with at least one of said oxygen stream or said nitrogen stream with said first compressor or said second compressor, wherein said at least one parameter is pressure, and h) assigning a first variable setpoint value that varies as a function of a value representative of the load on the gas turbine to said at least one parameter, wherein said value representative of the load on the turbine is a specific pressure value on the intake side of said gas turbine, wherein the pressure inside said gasifier is also controlled by assigning to it a second variable setpoint that varies as a function of said pressure value.