Combined thermal power generation plant with exhaust gas recirculation ejector

Abstract

Provided is a combined cycle power plant. 【Solution means】The combined cycle power plant includes a gas turbine engine including a compressor and a turbine. The turbine discharges a first exhaust gas stream therefrom. The heat recovery steam generator receives the first exhaust gas stream, extracts heat from the first exhaust gas stream, and discharges a second exhaust gas stream therefrom. The cooler cools the second exhaust gas stream to form a cooled exhaust gas stream and discharges the cooled exhaust gas stream. The exhaust gas recirculation line flows a first portion of the cooled exhaust gas stream towards the ejector. The ejector receives the compressor extraction stream and the first portion of the cooled exhaust gas stream, compresses the first portion of the cooled exhaust gas stream using the compressor extraction stream, and discharges the recovered gas stream to the turbine.

Description

Background Art

[0001] The present disclosure generally relates to power generation systems, and more specifically to systems that use ejectors and recirculated exhaust gas to improve the output of a power generation plant (power station).

[0002] Gas turbine systems are used for power generation and typically include a compressor, a combustor, and a turbine. Operating a gas turbine system at a high temperature generally improves performance, efficiency, and output. However, during operation, various gas path components within the system may be exposed to high temperature flows. Over time, continued exposure to high temperature flows can cause excessive stress on the components and / or shorten their service life. Therefore, at least some known gas turbine components that are exposed to high temperature flows are cooled so that the gas turbine system can continue to operate at elevated temperatures. For example, some components may be supplied with bleed air from the compressor for cooling purposes. However, air that is compressed by the compressor and not used for combustion gas production generally reduces the overall efficiency and output of the gas turbine system.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

[0004] In one aspect, a combined cycle power generation plant including a gas turbine engine including a compressor and a turbine is provided. The turbine discharges a first exhaust gas stream therefrom. The heat recovery steam generator receives the first exhaust gas stream, extracts heat from the first exhaust gas stream, and discharges a second exhaust gas stream therefrom. The cooler cools the second exhaust gas stream, defines a cooled exhaust gas stream, and discharges the cooled exhaust gas stream. The exhaust gas recirculation line flows a first portion of the cooled exhaust gas stream toward the ejector. The ejector receives a compressor bleed stream from the compressor, receives a first portion of the cooled exhaust gas stream, compresses the first portion of the cooled exhaust gas stream using the compressor bleed stream, and discharges the recovered gas stream to the turbine.

[0005] In another aspect, a combined cycle power generation plant including a gas turbine engine including a compressor and a turbine is provided. The turbine discharges a first exhaust gas stream therefrom. The heat recovery steam generator receives the first exhaust gas stream, extracts heat from the first exhaust gas stream, and discharges a second exhaust gas stream therefrom. The cooler cools the second exhaust gas stream, defines a cooled exhaust gas stream, and discharges the cooled exhaust gas stream. The exhaust gas recirculation line flows a first portion of the cooled exhaust gas stream toward the ejector. The ejector receives a compressor extraction stream from the compressor, receives a first portion of the cooled exhaust gas stream, compresses the first portion of the cooled exhaust gas stream using the compressor extraction stream, and discharges the recovered gas stream to the turbine. The steam turbine receives a steam flow and discharges a steam extraction flow. The carbon capture system receives the steam extraction flow and a second portion of the cooled exhaust gas stream.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying Out the Invention

[0007] The embodiments described herein relate to a power generation system that uses an ejector and recirculated exhaust gas to improve the output and / or efficiency of a plant.

[0008] Unless otherwise indicated, approximate expressions such as "generally", "substantially", "about", etc. used herein indicate that the modified term may be applied only to the extent that it is approximate and not absolute or complete, as recognized by those skilled in the art. Thus, values modified by terms such as "about", "approximately", "substantially", etc. are not limited to the specified exact values. In at least some examples, the approximate expression may correspond to the accuracy of the instrument used to measure the value. Further, unless otherwise indicated, terms such as "first", "second", etc. are used herein merely as labels and are not intended to impose sequential, positional, or hierarchical requirements on the items they refer to. Further, a reference to an item, for example, "second", does not exclude or require the presence of an item numbered, for example, "first" or less, or an item numbered "third" or more.

[0009] FIG. 1 is a schematic diagram of an exemplary combined cycle power plant 100. In an exemplary embodiment, the power plant 100 includes a gas turbine assembly 102 and a steam turbine 104. The gas turbine assembly 102 includes a compressor 106, a combustor 108, and a turbine 110 coupled together in a series flow relationship. During operation, the combustor 108 receives air from the compressor 106 and fuel from a fuel source, mixes the fuel and air to create a fuel-air mixture, and combusts this to generate combustion gases. The combustion gases are flowed through the turbine 110 and exhausted from the turbine 110 as a first exhaust gas stream 112. In an exemplary embodiment, the power plant 100 also includes a steam cycle arrangement including a heat recovery steam generator (HRSG) 114 and a steam turbine 104. In some embodiments, the steam cycle arrangement can also include other components including a condenser 116 and at least one condensate pump 117.

[0010] In an exemplary embodiment, the HRSG 114 includes an inlet 118 that receives the first exhaust gas stream 112 from the gas turbine assembly 102. Heat is extracted from the first exhaust gas stream 112, and a second exhaust gas stream 120 is discharged from the first outlet 122. The second exhaust gas stream 120 is at a lower temperature than the temperature of the first exhaust gas stream 112 entering the inlet 118. The HRSG 114 also includes a second outlet 124 that discharges the first steam stream 126. The steam turbine 104 receives the first steam stream 126 and then discharges an interstage steam extraction flow 128 therefrom. The steam that was not extracted by the flow 128 continues to expand in order to condense in the condenser 116. In some embodiments, the steam turbine 104 can include an additional steam supply from the HRSG 114. In an exemplary embodiment, both the gas turbine assembly 102 and the steam turbine 104 are coupled to a generator 132 that generates power using the working fluid flowing through each. Alternatively, the turbine assembly 102 and the steam turbine 104 can be on separate shafts and each can be coupled to a separate generator.

[0011] In an exemplary embodiment, the power plant 100 also includes a carbon capture system 134. During operation, the carbon capture system 134 produces a carbon dioxide stream 138. The carbon capture system 134 can include one or more separators that are used alone or in combination with other separation processes such as carbon dioxide selective membrane technologies, absorption processes, diaphragms. An exhaust stream or carbon depleted exhaust stream 140 may be discharged from the carbon capture system 134 to the ambient environment. The exhaust stream 140 may also be further processed before being discharged to the environment or elsewhere. At least a portion of the carbon dioxide stream 138 can be raised to supercritical pressure, for example, for transportation and / or storage.

[0012] The carbon capture system 134 generally includes an absorber 142, a stripper 144, and a stripper boiler 146. During operation, a second exhaust gas stream 120 discharged from the HRSG 114 is flowed towards the absorber 142. The exhaust gas may be pre-treated to remove particulates and impurities such as SOx and NOx before entering the absorber 142. Further, in an exemplary embodiment, a first cooler 148 is coupled between the HRSG 114 and the carbon capture system 134. Alternatively, the carbon capture system 134 may include at least one booster blower (not shown) for pressurizing the flow being flowed towards the carbon capture system 134. The first cooler 148 may be, but is not limited to, a quench tower. The first cooler 148 cools a portion of the second exhaust gas stream 120 being flowed towards the carbon capture system 134.

[0013] A solvent 152 rich in carbon dioxide is discharged from the absorber 142 and sent to the stripper 144 via a pump 154. A lean solvent 156 of carbon dioxide is discharged from the stripper 144 and returned to the upper part of the absorber 142 via a boiler 146, a pump 166, and a heat exchanger 158. The absorber 142 may be of any typical structure for providing gas-liquid contact and absorption. The absorber 142 and the stripper 144 can incorporate various internal components such as trays, packings, and / or supports. In one embodiment, the absorber 142 absorbs carbon dioxide via countercurrent flow from the exhaust gas entering the absorber 142. The stripper 144 removes carbon dioxide from the solvent 152. The absorber 142 and the stripper 144 may be variably sized based on the amount of carbon dioxide to be removed, and may be variably sized according to various engineering design equations. Further, a single stripper 144 may serve the role of multiple absorbers 142 and may be connected thereto.

[0014] In an exemplary embodiment, the solvent 152 is preheated by the countercurrent heat exchanger 158 with respect to the solvent 156 and then flowed to the stripper 144. The stripper 144 is a pressurized unit where carbon dioxide is recovered from the solvent 152. The stripper 144 generally incorporates a reboiler 146 that receives a portion of the solvent 156 exiting the stripper 144. The reboiler 146 vaporizes the solvent 156, returns the solvent vapor 160 to the stripper 144, and promotes the separation of carbon dioxide. It is also possible to connect a single stripper 144 to a plurality of reboilers 146. The reboiler 146 receives steam, for example, from the steam turbine 104 via the stream 128, imposing a heating duty on the reboiler 146.

[0015] The vapor 162 exiting the stripper 144 is partially condensed in the condenser 136. The condensed portion of the vapor 162 is returned to the stripper 144 as reflux 164. The reflux 164 may be transferred through an accumulator (not shown) and a pump (not shown) before entering the stripper 144. The carbon dioxide stream 138 is removed from the condenser 136 after compression for transportation and / or storage.

[0016] In an exemplary embodiment, the compressor 106 includes a compressor inlet 168, a compressor outlet 170, and a compressor bleed outlet 174. The turbine 110 includes a turbine inlet 169, a turbine outlet 171, and a turbine cooling water inlet 173. The power plant 100 includes a bleed line 178 coupled between the compressor 106 and the turbine 110. Specifically, the bleed line 178 is coupled between the compressor bleed outlet 174 and the turbine cooling water inlet 173. The compressor 106 discharges a compressor bleed stream 180 of pressurized air through the bleed line 178 towards the turbine 110 to cool the turbine 110.

[0017] Figure 2 is a schematic diagram of an exemplary combined cycle power plant 200. The embodiment illustrated in Figure 2 has differences pointed out hereinafter in this specification, but is similar to the embodiment illustrated in Figure 1, and as such, the same reference numerals used in Figure 1 are used in Figure 2. In Figure 2, in the exemplary embodiment, the power plant 200 utilizes exhaust gas recirculation having a post-combustion carbon capture system 134. The exhaust gas recirculation flow 202 is drawn downstream from the first cooler 148 and flows towards an ejector 204 (described in more detail hereinafter with reference to Figure 3). The first cooler 148 may be, but is not limited to, a quench tower. The ejector 204 is between the compressor 106 and the turbine 110 along the extraction line 178. Specifically, the ejector 204 is coupled between the compressor extraction outlet 174 and the turbine coolant inlet 173 along the extraction line 178.

[0018] As shown in Figures 2 and 3, the ejector 204 includes a first ejector inlet 206, a second ejector inlet 208, and an ejector outlet 210. The first ejector inlet 206 receives the compressor extraction flow 180 discharged from the compressor 106 through the extraction line 178, and the second ejector inlet 208 receives the exhaust gas recirculation flow 202. The ejector 204 uses the pressure of the compressor extraction flow 180 to compress the exhaust gas recirculation flow 202, and the pressure of the compressor extraction flow 180 is higher than the operating pressure of the exhaust gas recirculation flow 202. The ejector 204 discharges a recovered gas flow 212 recovered from the ejector outlet 210 through the extraction line 178, promoting the cooling of the turbine 110. The pressure of the recovered gas flow 212 is higher than the pressure of the exhaust gas recirculation flow 202 and lower than the pressure of the compressor extraction flow 180.

[0019] As shown in FIG. 1, using pressurized air from the compressor 106 to cool the turbine 110 via the extraction line 178 may reduce the output of the gas turbine 102, thereby causing a reduction in the output of the power plant 100. As shown in FIG. 2, supplying the exhaust gas recirculation flow 202 to the ejector 204 facilitates improving the output of the gas turbine 102 by reducing the amount of pressurized air from the compressor 106 required to cool the turbine 110. The exemplary power plant 200 can include a controller 214 used to dynamically adjust the operation of the power plant 200. For example, the controller 214 can determine the power consumption by the compressor 106 discharging the compressor extraction flow 180 toward the turbine 110 via the extraction line 178. Thus, in one embodiment, the flow of the exhaust gas recirculation flow 202 is adjusted by the controller 214 to facilitate improving the output of the power plant 200. That is, the controller 214 can selectively adjust the flow of the exhaust gas recirculation flow 202 drawn downstream from the first cooler 148 as described herein to facilitate improving the output of the power plant 200. The controller 214 facilitates extending the service life of the components within the power plant 200. Therefore, flow modulation provides an option for the operator of the power plant 200 when determining a method to optimize the performance and life consumption of the gas turbine 102.

[0020] The ejector 204 can promote the improvement of the combustion stability of the power plant 200. Flowing the exhaust gas recirculation flow 202 through the ejector 204 can promote an increase in the oxygen concentration and a decrease in the carbon dioxide concentration of the air received by the combustor 108 from the compressor 106 as compared with the exhaust gas recirculation flow 202 received by the compressor 106 (not shown). That is, the combustion stability of the combustor 108 can be improved by the exhaust gas recirculation flow 202 bypassing the combustor 108 and flowing through the extraction line 178 toward the turbine 110.

[0021] Figure 4 is a schematic diagram of an alternative combined cycle power plant 200. The alternative embodiment illustrated in Figure 4 is similar to the embodiment illustrated in Figure 2, except for the differences described below, and therefore, the same reference numbers as those used in Figure 2 are used in Figure 4. In Figure 4, the power plant 200 utilizes an exhaust gas recirculation 202 having a post-combustion carbon capture system 134. The exhaust gas recirculation flow 202 is drawn downstream from the first cooler 148, and a first portion 402 of the exhaust gas recirculation flow 202 is directed toward the ejector 204. A second portion 404 of the exhaust gas recirculation flow 202 is directed toward the compressor 106. A booster blower 406 is coupled between the cooler 148 and the compressor 106. The booster blower 406 receives the second portion 404 of the exhaust gas recirculation flow 202 and discharges a pressurized and cooled flow 408 toward the compressor 106. The compressor 106 receives the cooled flow 408 cooled at the compressor inlet 168. Both the cooled flow 408 and the first portion 402 of the exhaust gas recirculation flow 202 improve the performance of the power plant 200 by increasing the concentration of CO2 in the second exhaust gas flow 120. This reduces both the size, cost, and reboiler steam requirements via the interstage steam extraction flow 128 to the carbon capture system 134.

[0022] The foregoing description is intended only to be exemplary, and those skilled in the art will recognize that modifications can be made to the described embodiments without departing from the scope of the disclosed invention. Modifications that fall within the scope of the present invention will be apparent to those skilled in the art in light of the present disclosure, and such modifications are intended to fall within the scope of the appended claims. The systems and methods described herein are not limited to the specific embodiments described herein, but rather, the various system components can be utilized separately and independently from the other systems and components described herein. For example, the exhaust gas recirculation ejector can be implemented and utilized in connection with any application where an improvement in output is desired.

[0023] Certain features of various embodiments of the present invention are shown in some of the drawings and may not be shown in other drawings, but this is for convenience only. Further, references to "one embodiment" in the above description are not intended to be construed as excluding the existence of additional embodiments that also incorporate the recited features. In accordance with the principles of the present invention, any feature in a drawing may be referenced and / or claimed in combination with any feature in any other drawing.

[0024] A further aspect of the present invention is provided by the subject matter of the following clauses. [Embodiment 1] A combined cycle power plant, comprising a gas turbine engine including a compressor and a turbine configured to discharge a first exhaust gas stream therefrom, a heat recovery steam generator configured to receive the first exhaust gas stream therein; extract heat from the first exhaust gas stream; and discharge a second exhaust gas stream therefrom, and a cooler configured to cool the second exhaust gas stream, thereby defining a cooled exhaust gas stream, wherein the cooler discharges the cooled exhaust gas stream. an exhaust gas recirculation line configured to channel a first portion of the cooled exhaust gas stream towards an ejector, comprising, wherein the ejector is configured to: receive a compressor extraction flow from the compressor, receive the first portion of the cooled exhaust gas stream, compress the first portion of the cooled exhaust gas stream using the compressor extraction flow, and discharge a recovered gas flow to the turbine, a combined cycle power generation plant. [Embodiment 2] the heat recovery steam generator configured to discharge a steam stream, a steam turbine configured to: receive the steam stream therein; and discharge a steam extraction flow, a carbon capture system configured to receive the steam extraction flow a controller configured to modulate the flow of the cooled exhaust gas stream recirculated towards the ejector to facilitate increasing an output of the combined cycle power plant The combined cycle power plant according to any of the preceding embodiments, further comprising [Embodiment 3] The controller determine power consumption resulting from discharging the compressor extraction flow from the compressor The combined cycle power plant according to any of the preceding embodiments, further configured to modulate the flow of the cooled exhaust gas stream recirculated towards the ejector to facilitate increasing the output of the combined cycle power plant [Embodiment 4] The controller monitors a temperature of the turbine and is further configured to modulate the flow of the cooled exhaust gas stream recirculated towards the ejector to facilitate part life consumption management of the gas turbine engine, of a combined cycle power generation plant according to any of the preceding embodiments. [Embodiment 5] The compressor extraction flow is of a first pressure measurement, The cooled exhaust gas stream is of a second pressure measurement, The recovered gas flow is of a third pressure measurement, The second pressure measurement is lower than the first pressure measurement, The third pressure measurement is lower than the first pressure measurement and higher than the second pressure measurement, of a combined cycle power generation plant according to any of the preceding embodiments. [Embodiment 6] The combined cycle power plant according to any of the preceding embodiments, further comprising the carbon capture system configured to receive a second portion of the cooled exhaust gas stream. [Embodiment 7] The combined cycle power plant according to any of the preceding embodiments, further comprising a second exhaust gas recirculation line configured to channel a third portion of the cooled exhaust gas stream towards the compressor. [Embodiment 8] The combined cycle power plant according to any of the preceding embodiments, further comprising an exhaust gas boost blower configured to channel the third portion of the cooled exhaust gas stream towards the compressor. [Embodiment 9] A combined cycle power plant comprising a gas turbine engine including a compressor and a turbine configured to discharge a first exhaust gas stream therefrom a heat recovery steam generator configured to: receive the first exhaust gas stream therein; extract heat from the first exhaust gas stream; and discharge a second exhaust gas stream and a steam stream therefrom, a cooler configured to cool the second exhaust gas stream, thereby defining a cooled exhaust gas stream, wherein the cooler discharges the cooled exhaust gas stream, an exhaust gas recirculation line configured to channel a first portion of the cooled exhaust gas stream towards an ejector, wherein the ejector receives a compressor extraction flow from the compressor, receives the first portion of the cooled exhaust gas stream, compress the first portion of the cooled exhaust gas stream using the compressor extraction flow discharge a recovered gas flow to the turbine the exhaust gas recirculation line configured as such a steam turbine configured to: receive the steam stream therein; and discharge a steam extraction flow a carbon capture system configured to receive the steam extraction flow [Embodiment 10] determine power consumption resulting from discharging the compressor extraction flow from the compressor modulate the flow of the cooled exhaust gas stream recirculated towards the ejector to facilitate increasing an output of the combined cycle power plant A combined cycle power plant according to any of the preceding embodiments, further comprising a controller configured as such. [Embodiment 11] The controller is configured to monitor a temperature of the turbine and further configured to modulate the flow of the cooled exhaust gas stream recirculated towards the ejector to facilitate part life consumption management of the gas turbine engine, a combined cycle power plant according to any of the preceding embodiments. [Embodiment 12] A combined cycle power plant according to any of the preceding embodiments, further comprising the carbon capture system configured to receive a second portion of the cooled exhaust gas stream. [Embodiment 13] The compressor extraction flow is of a first pressure measurement, the cooled exhaust gas stream is of a second pressure measurement, and the recovered gas flow is of a third pressure measurement, wherein the second pressure measurement is lower than the first pressure measurement, and the third pressure measurement is lower than the first pressure measurement and higher than the second pressure measurement, a combined cycle power generation plant according to any of the preceding embodiments. [Embodiment 14] Further comprising a second exhaust gas recirculation line configured to channel a third portion of the cooled exhaust gas stream towards the compressor, a combined cycle power generation plant according to any of the preceding embodiments. [Embodiment 15] A combined cycle power generation plant according to any of the preceding embodiments, further comprising an exhaust gas boost blower configured to channel the third portion of the cooled exhaust gas stream towards the compressor.

[0025] Although the invention has been described with respect to various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modifications within the spirit and scope of the claims.

Explanation of Reference Numerals

[0026] 100, 200: Combined cycle power plant 102: Gas turbine assembly 104: Steam turbine 106: Compressor 108: Combustor 110: Turbine 112: First exhaust gas stream 114: Heat recovery steam generator (HRSG) 116: Condenser 117: Condensate pump 118: Inlet 120: Second exhaust gas stream 122: First outlet 124: Second outlet 126: First steam stream 128: Inter-stage steam extraction stream 132: Generator 134: Carbon capture system 138: Carbon dioxide stream 140: Exhaust stream 142: Absorber 144: Stripper 146: Stripper reboiler / reboiler 148: First cooler 152: Solvent rich in carbon dioxide 154: Pump 156: Solvent lean in carbon dioxide 158: Heat exchanger / counter-current heat exchanger 160: Solvent vapor 162: Steam 164: Reflux 166: Pump 168: Compressor inlet 169: Turbine inlet 170: Compressor outlet 171: Turbine outlet 172: Intermediate stage inlet 173: Turbine cooling water inlet 174: Compressor extraction outlet 178: Extraction line 180: Compressor extraction stream of pressurized air 202: Exhaust gas recirculation stream 204: Ejector 206: First ejector inlet 208: Second ejector inlet 210: Ejector outlet 212: Recovered gas stream 214: Controller 402: First part 404: Second part 406: Booster blower 408: Pressurized and cooled stream

Claims

1. A combined cycle power generation plant, comprising a gas turbine engine including a compressor and a turbine configured to discharge a first exhaust gas stream therefrom, a heat recovery steam generator configured to receive the first exhaust gas stream therein, extract heat from the first exhaust gas stream, and discharge a second exhaust gas stream therefrom, a carbon recovery system downstream of the heat recovery steam generator, a cooler connected between the heat recovery steam generator and the carbon recovery system, configured to cool the second exhaust gas stream, thereby defining a cooled exhaust gas stream, and discharge the cooled exhaust gas stream, an exhaust gas recirculation line in fluid communication with a conduit connecting the cooler and the carbon recovery system, configured to flow a first portion of the cooled exhaust gas stream toward an ejector, and the ejector receives a compressor extraction flow from the compressor, receives the first portion of the cooled exhaust gas stream, compresses the first portion of the cooled exhaust gas stream using the compressor extraction flow, and discharges the recovered gas stream to the turbine, such that the combined cycle power generation plant is configured.

2. the heat recovery steam generator configured to discharge a steam stream, a steam turbine configured to receive the steam stream therein and discharge a steam extraction flow, a carbon capture system configured to receive the steam extraction flow, and a controller configured to adjust the flow of the cooled exhaust gas stream recirculated toward the ejector to facilitate increasing the output of the combined cycle power generation plant. The combined cycle power generation plant according to claim 1, further comprising.

3. The controller determines the power consumption resulting from discharging the compressor extraction flow from the compressor, and is further configured to adjust the flow of the cooled exhaust gas stream recirculated toward the ejector to facilitate increasing the output of the combined cycle power generation plant. The combined cycle power generation plant according to claim 2.

4. The controller is further configured to monitor the temperature of the turbine and regulate the flow of the cooled exhaust gas stream recirculated towards the ejector to facilitate component life consumption management of the gas turbine engine, for the composite cycle power generation plant according to claim 2.

5. The compressor bleed flow is a first pressure measurement value, The cooled exhaust gas stream is a second pressure measurement value, The recovered gas stream is a third pressure measurement value, The second pressure measurement value is lower than the first pressure measurement value, The third pressure measurement value is lower than the first pressure measurement value and higher than the second pressure measurement value, for the composite cycle power generation plant according to claim 1.

6. The composite cycle power generation plant according to claim 2, further comprising the carbon capture system configured to receive a second portion of the cooled exhaust gas stream.

7. The composite cycle power generation plant according to claim 1, further comprising a second exhaust gas recirculation line configured to flow a third portion of the cooled exhaust gas stream towards the compressor.

8. The composite cycle power generation plant according to claim 7, further comprising an exhaust gas boost blower configured to flow a third portion of the cooled exhaust gas stream towards the compressor.

9. A composite cycle power generation plant, A gas turbine engine including a compressor and a turbine configured to discharge a first exhaust gas stream therefrom, A heat recovery steam generator fluidly communicating with the gas turbine engine downstream thereof, configured to receive the first exhaust gas stream therein, extract heat from the first exhaust gas stream, and discharge a second exhaust gas stream and a steam stream therefrom, A carbon recovery system downstream of the heat recovery steam generator, A cooler configured to fluidly connect the heat recovery steam generator and the carbon recovery system, cool the second exhaust gas stream, thereby defining a cooled exhaust gas stream, and discharge the cooled exhaust gas stream, An exhaust gas recirculation line in fluid communication with a conduit connecting the cooler and the carbon recovery system, An ejector in fluid communication with the exhaust gas recirculation line and connected between the compressor and the turbine of the gas turbine engine, wherein the ejector, receives a compressor extraction flow from the compressor, Receives a first portion of the cooled exhaust gas flow from the exhaust gas recirculation line, Compresses the first portion of the cooled exhaust gas flow using the compressor extraction flow, Discharges the recovered gas flow to a turbine, The ejector configured as such, A steam turbine configured to receive the steam flow therein and discharge a steam extraction flow, Including, The carbon capture system is a combined cycle power generation plant configured to receive the steam extraction flow.

10. Determine the power consumption resulting from discharging the compressor extraction flow from the compressor, Adjust the flow of the cooled exhaust gas flow recirculated towards the ejector to facilitate increasing the output of the combined cycle power generation plant, The combined cycle power generation plant according to claim 9, further comprising a controller configured as such.

11. The controller, Monitors the temperature of the turbine, The combined cycle power generation plant according to claim 10, further configured to adjust the flow of the cooled exhaust gas flow recirculated towards the ejector to facilitate component life consumption management of the gas turbine engine.

12. The combined cycle power generation plant according to claim 9, further comprising the carbon capture system configured to receive a second portion of the cooled exhaust gas flow.

13. The compressor extraction flow is a first pressure measurement value, the cooled exhaust gas flow is a second pressure measurement value, the recovered gas flow is a third pressure measurement value, the second pressure measurement value is lower than the first pressure measurement value, the third pressure measurement value is lower than the first pressure measurement value and higher than the second pressure measurement value, the combined cycle power generation plant according to claim 9.

14. The combined cycle power generation plant according to claim 9, further comprising a second exhaust gas recirculation line configured to flow a third portion of the cooled exhaust gas flow towards the compressor.

15. The combined cycle power generation plant according to claim 14, further comprising an exhaust gas boost blower configured to flow a third portion of the cooled exhaust gas flow towards the compressor.

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