Systems and methods are provided for a turbocharger system for use with a process gas capture system. In one example, the turbocharger system comprises: a heat exchanger positioned to receive inlet gas from a gas generating system via a first inlet; a low pressure compressor driven by a low pressure turbine and coupled to a first outlet of the heat exchanger; a mid-pressure compressor driven by a mid-pressure turbine and coupled in series with the low pressure compressor, the mid-pressure compressor configured to receive low pressure compressed gas from the low pressure compressor; and a high pressure compressor driven by a high pressure turbine and coupled in series with the mid-pressure compressor, the high pressure compressor configured to receive mid-pressure compressed gas from the mid-pressure compressor and output high pressure compressed gas to the process gas capture system and a second inlet of the heat exchanger.

The invention is directed to a process to increase pressure and temperature of a feed gas by means of indirect heat exchange against a fluid having a higher temperature to obtain a gas high in pressure and temperature in a system. The system comprises a fluidly interconnected inlet zone, a heat exchange zone, a product gas zone and a low pressure outlet zone.

The invention is directed to a process to increase pressure and temperature of a feed gas by means of indirect heat exchange against a fluid having a higher temperature to obtain a gas high in pressure and temperature in a system. The system comprises a fluidly interconnected inlet zone, a heat exchange zone, a product gas zone and a low pressure outlet zone.

The gas turbine facility 10 of the embodiment includes a combustor 20 combusting fuel and oxidant, a turbine 21 rotated by combustion gas, a heat exchanger 23 cooling the combustion gas, a heat exchanger 24 removing water vapor from the combustion gas which passed through the heat exchanger 23 to regenerate dry working gas, and a compressor 25 compressing the dry working gas until it becomes supercritical fluid. Further, the gas turbine facility 10 includes a pipe 42 guiding a part of the dry working gas from the compressor 25 to the combustor 20 via the heat exchanger 23, a pipe 44 exhausting a part of the dry working gas to the outside, and a pipe 45 introducing a remaining part of the dry working gas exhausted from the compressor 25 into a pipe 40 coupling an outlet of the turbine 21 and an inlet of the heat exchanger 23.

The gas turbine facility 10 of the embodiment includes a combustor 20 combusting fuel and oxidant, a turbine 21 rotated by combustion gas, a heat exchanger 23 cooling the combustion gas, a heat exchanger 24 removing water vapor from the combustion gas which passed through the heat exchanger 23 to regenerate dry working gas, and a compressor 25 compressing the dry working gas until it becomes supercritical fluid. Further, the gas turbine facility 10 includes a pipe 42 guiding a part of the dry working gas from the compressor 25 to the combustor 20 via the heat exchanger 23, a pipe 44 exhausting a part of the dry working gas to the outside, and a pipe 45 introducing a remaining part of the dry working gas exhausted from the compressor 25 into a pipe 40 coupling an outlet of the turbine 21 and an inlet of the heat exchanger 23.

A power generation system burns a fuel in a gas in a combustion chamber, producing one or more combustion products and heating a working fluid, preferably supercritical CO.sub.2, that is chemically the same as a combustion product. The working fluid is mixed with the combustion products to form a combustion output mixture which is used in a turbine to drive a shaft of the turbine connected with a generator, producing electricity. The turbine outputs an exhaust that goes to a working fluid recycling system that connects the turbine outlet with the combustion chamber. The fluid recycling system has a radial compressor that receives and pressurizes the exhaust mixture and sends it to a chamber that has a bleed outlet and a recycling outlet. The recycling outlet transmits a recycled portion of the exhaust mixture to the combustion chamber, and the bleed outlet carries an excess portion of the exhaust mixture that is not to be recycled to an extraction system that removes it from the power generation system for use in other applications.

A power generation system burns a fuel in a gas in a combustion chamber, producing one or more combustion products and heating a working fluid, preferably supercritical CO.sub.2, that is chemically the same as a combustion product. The working fluid is mixed with the combustion products to form a combustion output mixture which is used in a turbine to drive a shaft of the turbine connected with a generator, producing electricity. The turbine outputs an exhaust that goes to a working fluid recycling system that connects the turbine outlet with the combustion chamber. The fluid recycling system has a radial compressor that receives and pressurizes the exhaust mixture and sends it to a chamber that has a bleed outlet and a recycling outlet. The recycling outlet transmits a recycled portion of the exhaust mixture to the combustion chamber, and the bleed outlet carries an excess portion of the exhaust mixture that is not to be recycled to an extraction system that removes it from the power generation system for use in other applications.

Systems and methods are provided for a turbocharger system for use with a process gas capture system. In one example, the turbocharger system comprises: a heat exchanger positioned to receive inlet gas from a gas generating system via a first inlet; a low pressure compressor driven by a low pressure turbine and coupled to a first outlet of the heat exchanger; a mid-pressure compressor driven by a mid-pressure turbine and coupled in series with the low pressure compressor, the mid-pressure compressor configured to receive low pressure compressed gas from the low pressure compressor; and a high pressure compressor driven by a high pressure turbine and coupled in series with the mid-pressure compressor, the high pressure compressor configured to receive mid-pressure compressed gas from the mid-pressure compressor and output high pressure compressed gas to the process gas capture system and a second inlet of the heat exchanger.

In an embodiment, a method includes flowing an exhaust gas from a turbine of a gas turbine system to an exhaust gas compressor of the gas turbine system via an exhaust recirculation path; evaluating moist flow parameters of the exhaust gas within an inlet section of the exhaust gas compressor using a controller comprising non-transitory media programmed with instructions and one or more processors configured to execute the instructions; and modulating cooling of the exhaust gas within the exhaust recirculation path, heating of the exhaust gas within the inlet section of the exhaust gas compressor, or both, based on the evaluation.

In an embodiment, a method includes flowing an exhaust gas from a turbine of a gas turbine system to an exhaust gas compressor of the gas turbine system via an exhaust recirculation path; evaluating moist flow parameters of the exhaust gas within an inlet section of the exhaust gas compressor using a controller comprising non-transitory media programmed with instructions and one or more processors configured to execute the instructions; and modulating cooling of the exhaust gas within the exhaust recirculation path, heating of the exhaust gas within the inlet section of the exhaust gas compressor, or both, based on the evaluation.