Systems and methods for gas processing via mobile adsorption modules and thermal control
The gas processing system with movable adsorption modules and thermal control addresses the complexity and cost issues of solvent-based systems by enabling efficient gas treatment within ducts, effectively removing undesirable gases like CO, CO2, NOx, and SOx.
Patent Information
- Application Number
- JP2025520963
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2022-10-20
- Publication Date
- 2025-10-17
AI Technical Summary
Existing solvent-based gas treatment systems for industrial plants are costly and complex due to external equipment, increasing the footprint and complexity of gas treatment systems.
A gas processing system with movable adsorption modules and a thermal control system that allows adsorption and desorption of undesirable gases within the ducts, using a positioning assembly to move modules between adsorption and desorption positions, and a thermal control system for temperature management.
Enables efficient and cost-effective gas treatment within the ducts, reducing system complexity and footprint while effectively removing undesirable gases like CO, CO2, NOx, and SOx without external solvent-based systems.
Smart Images

Figure 2025534678000001_ABST
Abstract
Description
[Technical Field]
[0001] TECHNICAL FIELD This application relates generally to systems and methods for treating gases, such as gas fuels or exhaust gases. [Background technology]
[0002] Industrial plants, such as power plants, may consume or produce various gases, such as fuel gases (e.g., natural gas or syngas) and / or combustion system exhaust gases. The combustion systems may include gas turbine engines, reciprocating piston-cylinder engines, furnaces, boilers, or other industrial equipment. These gases may include one or more undesirable gases, such as acid gases and / or exhaust gases. For example, undesirable gases may include hydrogen sulfide (HS), carbon oxides (CO), such as carbon dioxide (CO), and / or sulfur dioxide (S). X ), nitrogen oxides such as nitrogen dioxide (NO2) X ), and / or sulfur oxides (SO ), such as sulfur dioxide (SO ). X ). Therefore, it may be desirable to treat certain gases to remove undesirable gases from the gas stream, such as by removing undesirable gases from fuel gas upstream of a combustion system and / or removing undesirable gases from exhaust gas emitted by the combustion system. Gas treatment systems may include a solvent-based adsorption system configured to adsorb the undesirable gases into a solvent, which then flows through a solvent regeneration system to remove the undesirable gases. However, solvent-based adsorption systems generally include various equipment external to the ducts carrying the gas stream (e.g., fuel supply ducts or exhaust ducts), which can therefore increase the cost, complexity, and footprint of the solvent-based adsorption system. Therefore, a gas treatment system is needed that can continue to operate without relying on a solvent-based adsorption system. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] International Publication No. 2021 / 258219 Summary of the Invention
[0004] Certain embodiments commensurate in scope with the originally claimed subject matter are summarized below. These embodiments are not intended to limit the scope of the claimed embodiments; rather, these embodiments are intended only to provide a brief outline of possible forms of the present subject matter. Indeed, the embodiments claimed herein may encompass a variety of forms that may be similar to or different from the embodiments set forth below.
[0005] In certain embodiments, a system includes a gas processing system having an adsorption module, the adsorption module containing an adsorbent. The gas processing system further includes a positioning assembly configured to move the adsorption module in alternating directions along a movement path between a first position in the first flow path and a second position in the second flow path. The gas processing system is configured to adsorb undesired gases from a first fluid stream in the first flow path into the adsorbent when the adsorption module is disposed in the first position. The gas processing system is configured to desorb undesired gases from the adsorbent when the adsorption module is disposed in the second position. The gas processing system also includes a thermal control system having a first heat exchanger disposed in the first flow path and a second heat exchanger disposed in the second flow path.
[0006] In certain embodiments, the system includes a first duct having a first flow path, a second duct having a second flow path, and a plurality of adsorption modules, each adsorption module of the plurality of adsorption modules containing an adsorbent. The system further includes a plurality of positioning assemblies, each positioning assembly of the plurality of positioning assemblies configured to independently move one of the plurality of adsorption modules in alternating directions between the first duct and the second duct. The system also includes a thermal control system having a first heat exchanger disposed in the first flow path and a second heat exchanger disposed in the second flow path.
[0007] In certain embodiments, a method includes moving an adsorption module of a gas processing system in alternating directions along a movement path between a first position in a first flow path and a second position in a second flow path via a positioning assembly, the adsorption module including an adsorbent. The method includes adsorbing undesirable gases in the adsorbent of the adsorption module when the adsorption module is disposed at the first position in the first flow path. The method includes controlling a first temperature in the first flow path via a first heat exchanger of a thermal control system, the first heat exchanger being disposed in the first flow path. The method includes desorbing undesirable gases from the adsorbent of the adsorption module when the adsorption module is disposed at a second position in the second flow path. The method includes controlling a second temperature in the second flow path via a second heat exchanger of the thermal control system, the second heat exchanger being disposed in the second flow path.
[0008] These and other features, aspects, and advantages of the techniques disclosed herein will be better understood when the following detailed description is read in conjunction with the accompanying drawings, in which like reference numerals represent like parts throughout. [Brief explanation of the drawings]
[0009] [Figure 1] 1 is a schematic diagram of an embodiment of a gas turbine system having a gas processing system with one or more adsorption modules configured to remove undesirable gases. [Figure 2] FIG. 2 is a schematic diagram of an embodiment of the gas processing system of FIG. 1 further showing an adsorption system having a plurality of movable adsorption assemblies each having an adsorption module that moves linearly between a first duct and a second duct via a linear positioning assembly, and a thermal control system that provides temperature control to the adsorption system. [Figure 3] FIG. 3 is a schematic diagram of an embodiment of a temperature control system having a heat exchanger configured to provide heating and / or cooling to the gas processing system of FIGS. 1 and 2. [Figure 4]3 is a schematic diagram of an embodiment of a direct heat exchange system having a fluid distribution manifold with a plurality of nozzles configured to inject fluid for direct heat transfer in the gas processing system of FIGS. 1 and 2. FIG. [Figure 5] FIG. 3 is a perspective view of one embodiment of the sorption module of FIGS. 1 and 2, further showing a sorbent cartridge positioned within the framework of the sorption module. [Figure 6] FIG. 3 is a perspective view of one embodiment of the adsorption module of FIGS. 1 and 2 , further showing a plurality of sorbent cartridges positioned in respective cartridge openings within the framework of the adsorption module, each of the plurality of sorbent cartridges being separately removable for refurbishment and replacement. [Figure 7] 3 is a partial schematic view of one embodiment of the movable suction assembly of FIG. 2 further showing details of a linear positioning assembly having a slide disposed within the rails of each rail assembly. [Figure 8] FIG. 10 is a partial cross-sectional view of an embodiment of a rail assembly coupled to a suction module, further showing details of one of the slides disposed within each rail. [Figure 9] 3 is a schematic diagram of an embodiment of the movable adsorption assembly of FIG. 2 further showing details of a seal disposed around an opening in an intermediate wall between the first duct and the second duct. [Figure 10] 10 is a partial cross-sectional view of one embodiment of a movable adsorption assembly taken along line 10-10 of FIG. 9, further showing seal details with brush seal fibers positioned against an adsorption module. [Figure 11] 3 is a schematic diagram of one embodiment of the movable suction assembly of FIG. 2 further showing details of an access panel positioned over an access opening in the first duct to allow for insertion and removal of suction modules. [Figure 12] 3 is a partial perspective view of an embodiment of the gas processing system of FIG. 2 further showing details of the adsorption module partially removed from the first duct through the access opening; FIG. [Figure 13]13 is a partial cross-sectional view of an embodiment of an access panel coupled to the first duct of FIGS. 2, 11, and 12. FIG. [Figure 14] 1 is a flow chart of one embodiment of a process for processing gas through a movable adsorption assembly having an adsorption module that moves between a first duct and a second duct to perform adsorption and desorption, respectively. [Figure 15] FIG. 15 is a schematic diagram of an embodiment of the gas processing system of FIGS. 1-14, further illustrating details of the thermal control system of FIG. 2, where the thermal control system includes a cooling system having a cooling supply system and a heating system having a heating supply system. [Figure 16] 16 is a schematic diagram of an embodiment of the gas processing system of FIGS. 1-15, further illustrating details of the single fluid system of the cooling and heating supply systems of the thermal control system of FIG. 15. FIG. [Figure 17] 16 is a schematic diagram of one embodiment of the gas processing system of FIGS. 1-15, further illustrating the multi-fluid system aspects of the cooling and heating supply systems of the thermal control system of FIG. 15. FIG. [Figure 18] FIG. 18 is a schematic diagram of an embodiment of the gas processing system of FIGS. 1-17, further illustrating aspects of the heat exchange system of the thermal control system of FIGS. 2 and 15-17. [Figure 19] 19 is a flow chart of one embodiment of a gas treatment process of the gas treatment system of FIGS. 1-18. [Figure 20] 2 is a block diagram of an embodiment of a combined cycle power plant having the gas turbine system of FIG. 1 showing further details of the adsorption system and thermal control system of the gas processing system. DETAILED DESCRIPTION OF THE INVENTION
[0010] One or more specific embodiments of the presently disclosed systems are described below. While an effort is made to provide a concise description of these embodiments, all features of an actual implementation may not be described herein. It should be understood that in the development of any such actual implementation, as with any engineering or design project, numerous implementation-specific decisions must be made to achieve the developer's unique goals, including compliance with system- and business-related constraints that may vary from implementation to implementation. Moreover, it should be understood that such a development effort may be complex and time-consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill in the art having the benefit of this disclosure.
[0011] When introducing elements of various embodiments of the presently disclosed embodiments, the articles "a," "an," "the," and "said" are intended to mean that there are one or more of the elements. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements.
[0012] Disclosed embodiments include gas processing systems and methods that enable gas processing using multiple adsorption modules, and a thermal control system that provides temperature control for the multiple adsorption modules. As described below, the thermal control system is configured to provide direct heat exchange, indirect heat exchange, or a combination thereof to control the temperature of the multiple adsorption modules to facilitate adsorption and desorption of undesired gases. For example, a heat exchanger may be disposed upstream of the multiple adsorption modules, directly between each of the multiple adsorption modules, or between consecutive adsorption modules to provide temperature control. The thermal control system may include one or more heat exchangers configured to operate as a heater or heating system, one or more heat exchangers configured to operate as a cooler or cooling system, or a combination thereof. In some embodiments, the heat exchangers may be disposed along a common heat transfer circuit and / or the heat exchangers may be disposed in a heat pump cycle or a refrigeration cycle.
[0013] In certain embodiments, the multiple adsorption modules are configured to move back and forth between a first duct for performing adsorption of undesirable gases and a second duct for performing desorption of undesirable gases. The first and second ducts may be positioned adjacent to and alongside one another so that the adsorption modules can move directly between and within the first and second ducts. The adsorption modules may be configured to move linearly between the ducts along a rail assembly, which may be oriented transversely (e.g., perpendicularly) to the longitudinal axes of the first and second ducts. The adsorption modules may include one or more removable adsorbent cartridges that can be removed and replaced separately from one another. The adsorption modules may also be accessible via access panels in the first duct and / or the second duct for inspection, refurbishment, replacement, or other maintenance procedures. The adsorption modules can also move back and forth between the first and second ducts in a staggered manner, such that one or more adsorption modules adsorb undesired gases in the first duct and one or more adsorption modules desorb undesired gases in the second duct. Various aspects and embodiments of the gas processing system are described in further detail below.
[0014] 1 is a block diagram of an embodiment of a gas turbine system 10 having a gas turbine engine 12 coupled to a control system 14. As described in further detail below, the gas turbine system 10 may include a gas processing system 16 that processes one or more gases within the gas turbine system 10. Various features of the gas processing system 16 are described in further detail below, and the various features may be used in any suitable combination with each other. However, before turning to the gas processing system 16, the gas turbine system 10 will be described as one possible context for using the gas processing system 16.
[0015] The gas turbine engine 12 includes an intake section 18, a compressor section 20, a combustor section 22, a turbine section 24, a load 26, and an exhaust section 28. The intake section 18 may include a duct having one or more silencer baffles, a fluid injection system (e.g., heated fluid injection for anti-icing), an air filter, or any combination thereof. The compressor section 20 may include an upstream inlet duct 30 having a bellmouth 32, which includes an intake air path between an inner hub 34 and an outer wall 36. The inlet duct 30 also includes stationary vanes 38 and inlet guide vanes (IGVs) 40. The inlet guide vanes 40 may also be coupled to one or more actuators 42 that are communicatively coupled to and controlled by the control system 14.
[0016] The compressor section 20 includes one or more compressor stages 44, each of which includes a plurality of compressor blades 46 coupled to a compressor shaft 48 within a compressor casing 50 and a plurality of compressor vanes 52 coupled to the compressor casing 50. The compressor blades 46 and compressor vanes 52 are arranged circumferentially about the central axis of the compressor shaft 48 in each compressor stage 44. The compressor stages 44 may include one to thirty or more compressor stages. Furthermore, the compressor stages 44 alternate between sets of compressor blades 46 and sets of compressor vanes 52 in the direction of airflow through the compressor section 20. During operation, the compressor stages 44 progressively compress the intake airflow before delivery to the combustor section 22.
[0017] The combustor section 22 includes one or more combustors 54 each having one or more fuel nozzles 56. In certain embodiments, the combustor section 22 may have a single annular combustor 54 extending about the central axis of the gas turbine engine 12. However, in some embodiments, the combustor section 22 may include two, three, four, five, six, or more combustors 54 spaced circumferentially about the central axis of the gas turbine engine 12. The fuel nozzles 56 receive compressed air 58 from the compressor section 20 and fuel 60 from one or more fuel supply systems 62, mix the fuel and air, and ignite the mixture to generate hot combustion gases 64, which then exit each combustor 54 and enter the turbine section 24.
[0018] The turbine section 24 includes one or more turbine stages 66, each of which is circumferentially disposed about a turbine shaft 70 inside a turbine casing 72 and includes a plurality of turbine blades 68 coupled to the turbine shaft 70 and a plurality of turbine vanes 74 circumferentially disposed about the turbine shaft 70. The turbine stages 66 may include one to ten or more turbine stages. Further, the turbine stages 66 alternate between sets of turbine blades 68 and sets of turbine vanes 74 in the direction of hot combustion gas flow through the turbine section 24. During operation, the hot combustion gases 64 gradually expand and drive the rotation of the turbine blades 68 within the turbine stages 66.
[0019] The load 26 may include a generator, a machine, or some other driven load. The load 26 may be located at the hot end of the gas turbine engine 12 as shown in FIG. 1 , or the load 26 may be located at the cold end of the gas turbine engine 12 (e.g., adjacent the compressor section 20). The exhaust section 28 may include an exhaust duct, exhaust treatment equipment, a silencer, or any combination thereof. In some embodiments, the exhaust section 28 may include and / or direct the exhaust flow through a heat exchanger and / or a cooling system. For example, the heat exchanger may include a heat recovery steam generator (HRSG) 27 configured to transfer heat from the exhaust gas to water, thereby generating steam for driving the steam turbine 29. As a further example, the cooling system may include or exclude one or more coolers 31, such as a direct contact cooler configured to spray a fluid (e.g., a liquid such as water) directly onto the exhaust gas (e.g., exhaust gas from the gas turbine engine 12 and / or the boiler 95) to directly cool the exhaust gas. In some embodiments, the gas processing system 16 may include dedicated heat exchangers (e.g., heaters and / or coolers) for controlling temperature, and thus the cooler 31 may be excluded from the gas turbine system 10. In particular embodiments, the gas turbine system 10 may include a combined cycle power plant having the gas turbine engine 12, the HRSG 27, and one or more steam turbines 29 driven by steam generated by the HRSG 27. The steam turbine 29, like the gas turbine engine 12, may be configured to drive an electrical generator or other load.
[0020] The control system 14 may include one or more controllers 76, each having a processor 78, a memory 80, instructions 82 stored in the memory 80 and executable by the processor 78, and communication circuitry 84 configured to communicate with the gas processing system 16. The control system 14 is also coupled to various sensors, indicated by element numbers 86, distributed throughout the gas turbine system 10. For example, the sensors 86 may be coupled to and monitor the conditions of the intake section 18, the compressor section 20, the fuel supply system 62, the combustors 54 of the combustor section 22, the turbine section 24, the load 26, the exhaust section 28, and the gas processing system 16. The control system 14 is configured to receive feedback from the sensors 86 to facilitate adjustment of various operating parameters of the gas turbine engine 12, such as the intake air flow, the fuel supply from the fuel supply system 62 to the combustors 54, the operation of the exhaust treatment equipment in the exhaust section 28, the operation of the gas processing system 16 (e.g., movement of the adsorption module 100 to facilitate selected periods of adsorption and desorption), or any combination thereof. For example, the control system 14 may be configured to move the adsorption modules 100 along a linear path between a first position in a first flow path in the first duct and a second position in a second flow path in the second duct, with the adsorption modules 100 configured to adsorb undesired gases while positioned at the first position in the first duct and desorb undesired gases while positioned at the second position in the second duct. In this manner, the adsorption modules 100 may alternately adsorb and desorb, and the gas processing system 16 may alternate the movement of the different adsorption modules 100 to hold at least one or more adsorption modules 100 in the first duct for adsorption while at least one or more adsorption modules 100 are positioned in the second duct for desorption.
[0021] As described in further detail below, gas treatment system 16 is configured to remove and / or capture one or more undesirable gases (e.g., acid gases and / or exhaust gases) from the inlet gas in the adsorbent in adsorption module 100. Undesirable gases are intended to cover any gases that may be undesirable in the fuel supply and / or exhaust gas. For example, undesirable gases may include acid gases present in the fuel supply and exhaust gas. As a further example, undesirable gases in the exhaust gas may include carbon oxides (CO), such as carbon dioxide (CO) and carbon monoxide (CO). X ), nitrogen oxides (NO X ), sulfur dioxide (SO2) and other sulfur oxides (SO X The gas adsorption may include any typically regulated exhaust gas, including, but not limited to, CO2, HCl ...
[0022] Gas processing system 16 may be configured to receive fluid 15 (e.g., purge gas, steam, etc.) from fluid supply system 17, which may include one or more components or equipment that generate steam or another suitable fluid (e.g., liquid, gas, or vaporized gas) for desorbing undesirable gases from adsorption module 100. For example, fluid supply system 17 may include HRSG 27 and / or steam turbine 29, which generate or output steam 96 as fluid 15 for desorbing undesirable gases from adsorption module 100. As a further example, fluid supply system 17 may include boiler 95 (e.g., a stand-alone or external boiler) configured to generate steam 96 from a heat source (e.g., combustion in boiler 95), which can be used as fluid 15 for desorbing undesirable gases from adsorption module 100. As a further example, fluid supply system 17 may include one or more other fluid supplies or devices configured to generate steam 96 or another fluid (e.g., a purge gas, a liquid, or a vaporized gas) for use as fluid 15 for desorbing undesired gases from adsorption module 100. In certain embodiments, a vacuum system may be used alone and / or in combination with fluid supply system 17 to facilitate desorption of undesired gases from adsorption module 100. The vacuum system may include one or more vacuum pumps configured to reduce the pressure in adsorption module 100 (e.g., reduce the pressure around the adsorbent), thereby creating a pressure differential to separate undesired gases (i.e., adsorbed gases in the adsorbent) from adsorption module 100 and / or to assist in removing the undesired gases from gas processing system 16. Thus, the vacuum system is configured to aspirate or draw undesired gases from adsorption module 100. The vacuum system may be disposed downstream of each adsorption module 100 and / or adsorption module 100.
[0023] During operation, inlet gas (e.g., exhaust gas 94 from turbine section 24, exhaust gas from boiler 95, fuel from fuel supply system 62, flue gas, etc.) flows through a first flow path within gas processing system 16, one or more of the adsorption modules 100 adsorb undesirable gases from the inlet gas, and fluid 15 (e.g., steam) flows through a second flow path within gas processing system 16, desorbing undesirable gases from one or more of the adsorption modules 100. The gas exits gas processing system 16 as a treated gas 97 (e.g., treated exhaust gas, treated fuel, treated flue gas, etc.) that is low in (or substantially free of) undesirable gases, and fluid 15 exits gas processing system 16 as a fluid 98 that is high in undesirable gases. The treated gas 97 may then flow through additional equipment. For example, if the treated gas 97 is treated exhaust gas or treated flue gas, the treated gas 97 may flow through an exhaust stack before being discharged to the environment. If the processed gas 97 is a processed fuel gas, the processed gas 97 may then enter the combustor section 22 of the gas turbine engine 12 .
[0024] The gas processing system 16 may include downstream equipment 99, such as a vacuum system, a fluid separation system, or any combination thereof, downstream from the adsorption module 100. Again, the fluid 15 (e.g., steam) is used to desorb the undesired gas (e.g., CO) from the adsorption module 100, followed by further processing in the downstream equipment 99. The vacuum system of the downstream equipment 99 may include the equipment described above. The fluid separation system of the downstream equipment may include a flash tank, absorber, or other equipment to separate the fluid 15 (e.g., steam) from the desorbed gas (e.g., undesired gas). The gas processing system 16 may use the downstream equipment 99 to separate and capture the undesired gas (e.g., CO) from the fluid 15 (e.g., steam), so that the captured gas can be used for other purposes. Thus, the gas processing system 16 may be described as a carbon capture adsorption system.
[0025] During operation, the gas turbine system 10 receives air into the inlet duct 30 from the intake section 18, as indicated by arrow 88, and the inlet guide vanes 40 are controlled by the actuators 42 to adjust the angular position of the inlet guide vanes 40 to regulate the airflow into the compressor section 20, which is configured to compress an airflow that is delivered into the combustor section 22. For example, each stage 44 of the compressor section 20 compresses the airflow with a plurality of blades 46. The compressed airflow 58 then enters each of the combustors 54, where fuel nozzles 56 mix the compressed airflow with fuel 60 from a fuel supply system 62. The fuel and air mixture is then combusted in each combustor 54 to generate hot combustion gases 64, which flow into the turbine section 24 and drive the rotation of the turbine blades 68 in each stage 66. The rotation of turbine blades 68 drives the rotation of turbine shaft 70, which in turn drives the rotation of load 26 and compressor section 20 via shaft 90 coupled to load 26 and shaft 92 coupled to compressor shaft 48. Turbine section 24 then discharges exhaust gases 94 to exhaust section 28 for final treatment and discharge to the environment.
[0026] In the illustrated embodiment, the gas turbine system 10 has a gas processing system 16 coupled to one or more fuel supply systems 62 and the exhaust section 28. However, the gas processing system 16 may also be coupled to one or more reciprocating piston-cylinder engines, a furnace, a boiler, a chemical reactor, a gasification system having one or more gasifiers configured to produce syngas, or other industrial equipment. Each of these gas processing systems 16 has features described in more detail below, and the disclosed embodiments are intended to be used in various combinations with each other in all of the aforementioned applications.
[0027] 2 is a schematic diagram of one embodiment of gas processing system 16 of FIG. 1 , further illustrating details of adsorption modules 100 moving linearly back and forth between ducts 102 and 104. As illustrated, gas processing system 16 includes an adsorption system 106 having a plurality of movable adsorption assemblies 108 configured to move adsorption modules 100 between ducts 102 and 104. For example, adsorption system 106 may be configured to move adsorption modules 100 in a staggered arrangement within ducts 102 and 104, such that one or more of adsorption modules 100 are positioned within duct 102 for adsorption of undesired gases and one or more of adsorption modules 100 are positioned within duct 104 for desorption of undesired gases. Adsorption modules 100 may be configured to move transversely (e.g., perpendicularly) relative to the longitudinal axes of ducts 102 and 104 while moving parallel to one another (e.g., along linear translation paths). Various aspects of the adsorption module 100 are described in further detail below.
[0028] Adsorption module 100 may be disposed entirely within ducts 102 and / or 104 during normal operation of gas processing system 16. Duct 102 has a flow passage 110 extending longitudinally therethrough between an inlet 112 and an outlet 114, with sidewalls 116 of duct 102 extending around flow passage 110. For example, sidewalls 116 may include rectangular sidewalls that define the rectangular shape of duct 102. Similarly, duct 104 has a flow passage 118 extending longitudinally therethrough from an inlet 120 to an outlet 122, with sidewalls 124 of duct 104 extending around flow passage 118. For example, sidewalls 124 may define rectangular sidewalls that define the rectangular shape of duct 104. The ducts 102 and 104 may be positioned directly adjacent to one another (e.g., in contact with one another) such that the ducts 102 and 104 have an intermediate wall 126 positioned directly between the flow path 110 of the duct 102 and the flow path 118 of the duct 104. In certain embodiments, the intermediate wall 126 may be a single shared wall between the ducts 102 and 104. However, in some embodiments, the intermediate wall 126 may include the side walls 116 and 124 of the ducts 102 and 104. While the illustrated embodiment depicts straight ducts 102 and 104, the ducts 102 and 104 may have one or more bends, curves, angled portions, or any combination thereof. Furthermore, the ducts 102 and 104 may be the same or different sizes from one another, and the ducts 102 and 104 may have the same or different shapes. Duct 102 may also be described as an adsorption duct (e.g., for adsorbing undesired gases onto the adsorbent of adsorption module 100), and duct 104 may also be described as a desorption duct 104 (e.g., for desorbing undesired gases from the adsorbent of adsorption module 100). Ducts 102 and 104 may be configured to carry various fluid streams, such as gas, liquid, or multiphase fluid streams.
[0029] In the illustrated embodiment, the duct 102 is configured to receive and pass through a fluid stream 128 that may include fuel, exhaust gas, or other untreated gases with undesired gases. For example, undesired gases may include carbon oxides (CO), such as carbon dioxide (CO) and carbon monoxide (CO). X ), nitrogen oxides (NO X ), sulfur dioxide (SO2) and other sulfur oxides (SO X ), hydrogen sulfide (HS), or any combination thereof. Duct 104 is configured to receive and pass through fluid stream 130, which may include steam, an inert gas such as nitrogen, air, a vacuum or suction stream, or another fluid stream. As described in further detail below, each movable adsorption assembly 108 is configured to move its respective adsorption module 100 between flow path 110 in duct 102 and flow path 118 in duct 104 to alternately adsorb undesired gases from fluid stream 128 and desorb undesired gases in response to heat applied by fluid stream 130 in duct 104.
[0030] Each movable suction assembly 108 has a suction module 100 movably coupled to a straight-line positioning assembly 132 that extends between duct 102 and duct 104 and allows movement of the suction module 100 from duct 102 to duct 104 and vice versa. The straight-line positioning assembly 132 may include multiple rail assemblies 134 coupled to the ducts 102 and 104 and the suction module 100. Additionally, the straight-line positioning assembly 132 includes a drive unit 136 coupled to a drive line 138, which is coupled to each suction module 100.
[0031] As described in further detail below, each rail assembly 134 may include a rail 140 and a mating set of one or more slides 142 configured to move along the rail 140 between the ducts 102 and 104. For example, the slides 142 may include wheels, blocks of low-friction material, mating rails, or any combination thereof. In certain embodiments, the rails 140 are coupled to the ducts 102 and 104 and extend all or substantially all of the distance between the side walls 116 and 124, and the slides 142 are coupled to each of the suction modules 100. In the illustrated embodiment, the straight-way positioning assembly 132 has rail assemblies 134 positioned on both sides of each suction module 100. However, the rail assemblies 134 may be positioned on only one side, both sides, all four corners, or any combination of locations along each respective suction module 100.
[0032] A drive line 138 extends between the drive device 136 and the adsorption module 100, and the drive line 138 may include a rigid bar or rod, a flexible cable, a chain, a rope, or any combination thereof. The drive device 136 may include an electric motor, a fluid-driven piston-cylinder assembly, a combustion engine, a gear assembly, a manual wheel or actuator assembly, or any combination thereof. The drive line 138 may be configured to move linearly, rotate, or any combination thereof to cause linear movement of the adsorption module 100 along a linear movement path defined by the rail assembly 134 of the straight-line positioning assembly 132 between the duct 102 and the duct 104. The drive line 138 may also extend through the side wall 124, such as through an opening 144 in the side wall 124, and the drive line 138 may be further supported by a bushing or seal 146 in the side wall 124. For example, the bushing or seal 146 may be an annular structure configured to seal around the drive line 138 to prevent leakage of the fluid flow 130 from the duct 104 to the surrounding environment. In some embodiments, the drive unit 136 may be disposed within a sealed enclosure along the sidewall 134 and / or inside the duct 104.
[0033] In each straight-through positioning assembly 132, the adsorption module 100 is configured to move between the ducts 102 and 104 through an opening 148 in the intermediate wall 126. For example, the opening 148 may be contoured to or have a similar size and shape to the periphery 152 of the adsorption module 100. Furthermore, the opening 148 may be surrounded or bordered by a seal 150. For example, as described in further detail below, the seal 150 may include a brush seal that constantly contacts the periphery 152 of the adsorption module 100 and the location of the adsorption module 100 as the adsorption module 100 moves between the duct 102 and the duct 104. Thus, the interface between the seal 150 and the periphery 152 prevents leakage between the fluid flow 128 in the duct 102 and the fluid flow 130 in the duct 104. 2 , three of the straight-line positioning assemblies 132 have adsorption modules 100 positioned in duct 102 such that the adsorption modules 100 actively adsorb undesired gases from the fluid stream 128. However, three of the adsorption modules 100 are also positioned in duct 104 so that undesired gases can be desorbed from the adsorption modules 100 for regeneration of the adsorption modules 100 prior to further use in duct 102. As described in further detail below, gas processing system 16 is configured to alternate the position of the adsorption modules 100 between ducts 102 and 104 such that one or more of the adsorption modules 100 adsorb undesired gases in duct 102 and one or more of the adsorption modules 100 are regenerated by desorption in duct 104.
[0034] Controller 76 is configured to control the movement and positioning of adsorption module 100 in response to various parameters, such as the adsorption rate in duct 102 and the desorption rate in duct 104. As shown in FIG. 2 , in duct 102, fluid stream 128 processed by adsorption module 100 results in the adsorption of undesired gases, resulting in fluid stream 128 becoming treated and producing treated fluid stream 154, which is discharged through outlet 114 of duct 102. For example, treated fluid stream 154 may be completely or substantially free of undesired gases, such as CO, H, S, SO, NO, or any combination thereof. In duct 104, fluid stream 130 provides heat to facilitate the desorption of undesired gases from adsorption module 100. For example, fluid stream 130 may include steam configured to flow through and around each of adsorption modules 100 in duct 104, thereby heating the adsorption modules 100 and assisting in desorbing undesired gases from the adsorption modules 100 for subsequent capture, cooling, and compression. Accordingly, duct 104 discharges a cooled fluid stream 156, such as cooled steam. In certain embodiments, undesired gases desorb from the adsorption modules 100 into duct 104, which then carries the desorbed gases along with cooled fluid stream 156 for subsequent capture, cooling, and compression. Alternatively or additionally, the desorbed gases may be separated and captured in the individual adsorption modules 100.
[0035] The gas processing system 16 may also include a thermal control system 101 having one or more temperature control systems, such as one or more chillers 158, one or more heaters 160, a cooling system 166, and a heating system 168. Each of the chillers 158, heaters 160, cooling systems 166, and heating systems 168 may include an indirect heat exchanger, a direct heat exchanger, or a combination thereof. An indirect heat exchanger transfers heat between two fluids through separate flow paths so that the two fluids do not contact each other. A direct heat exchanger directly mixes two fluids, such as by injecting, spraying, or otherwise providing a fluid into another flow path (e.g., water spray, steam spray, etc.), allowing contact between them. The thermal control system 101 is configured to provide heat transfer, and therefore temperature control, at various locations upstream from the movable adsorbent assembly 108 in the ducts 102 and 104, directly at the movable adsorbent assembly 108, between successive movable adsorbent assemblies, or any combination thereof. Further, thermal control system 101 is configured to provide heat transfer between duct 102 and duct 104, such as by transferring heat between one or more heat exchangers in duct 102 and one or more heat exchangers in duct 104. As shown in FIG. 2 , cooler 158 and heater 160 are positioned upstream from movable adsorbent assemblies 108, although cooler 158 and heater 160 may also be positioned directly on movable adsorbent assemblies 108 between successive movable adsorbent assemblies 108 and / or fluidly coupled to each other in a closed-loop heat transfer circuit between ducts 102 and 104. As further shown in FIG. 2 , cooling system 166 and heating system 168 are positioned directly on movable adsorbent assemblies 108, although cooling system 166 and heating system 168 may also be positioned upstream from movable adsorbent assemblies 108 between successive movable adsorbent assemblies 108 and / or fluidly coupled to each other in a closed-loop heat transfer circuit between ducts 102 and 104. Accordingly, each of the cooler 158, heater 160, cooling system 166, and heating system 168 may be discussed in the following description of the drawings in any or all of the aforementioned locations.
[0036] In the illustrated embodiment, the fluid stream 128 entering the duct 102 may be a heated fluid stream, such as flue gas. One or more coolers 158 may be disposed within the duct 102 upstream of the mobile adsorbent assemblies 108. The coolers 158 are configured to cool the fluid stream 128 before flowing through and / or around the adsorption module 100. In certain embodiments, the duct 102 may omit the coolers 158, and / or the controller 76 may not operate the coolers 158, if the fluid stream 128 is sufficiently cooled or below a threshold temperature. Additionally, one of the cooling systems 166 may be coupled to each of the mobile adsorbent assemblies 108 to provide direct cooling at the respective mobile adsorbent assemblies 108. The controller 76 may be configured to control each of the cooling systems 166 to provide a suitable temperature of the flue gas for adsorption of undesirable gases at the respective mobile adsorbent assemblies 108. In certain embodiments, the controller 76 may be configured to activate the cooling system 166 for a particular movable sorbent assembly 108 only when the sorbent module 100 is positioned in the duct 102 for adsorption of undesired gases from the exhaust gas, and then deactivate the cooling system 166 when the sorbent module 100 is positioned in the duct 104 for desorption of undesired gases. Additionally, the controller 76 may be configured to provide independent temperature control at each of the movable sorbent assemblies 108, and particularly the sorbent modules 100, via the cooling system 166. The independent temperature control may be based on temperature feedback from sensors 86 at each of the movable sorbent assemblies 108 (e.g., local temperatures upstream, downstream, or directly of the sorbent module 100).
[0037] Similarly, in duct 104, fluid stream 130 may be heated by one or more heaters 160 to help raise the temperature of fluid stream 130 before passing through adsorption modules 100 being regenerated in duct 104. For example, each heater 160 may be an electrical resistance heater, a heat exchanger, or another form of heater configured to raise the temperature of fluid stream 130 high enough to help induce desorption of undesired gases from adsorption modules 100. In certain embodiments, duct 104 may exclude heater 160 and / or controller 76 may not operate heater 160 if fluid stream 130 is sufficiently hot or exceeds a threshold temperature. Additionally, one of heating systems 168 may be coupled to each of movable adsorption assemblies 108 to provide direct heating at the respective movable adsorption assemblies 108. The controller 76 may be configured to control each of the heating systems 168 to provide a temperature within the adsorbent of the adsorption modules 100 suitable for desorption of undesired gases at the respective movable adsorption assemblies 108. In certain embodiments, the controller 76 may be configured to activate the heating system 168 for a particular movable adsorption assembly 108 only when the adsorption module 100 is positioned in the duct 104 for desorption of undesired gases, and then deactivate the heating system 168 when the adsorption module 100 is positioned in the duct 102 for adsorption of undesired gases from the exhaust gas. Additionally, the controller 76 may be configured to provide independent temperature control at each of the movable adsorption assemblies 108, and particularly the adsorption modules 100, via the heating systems 168. The independent temperature control may be based on temperature feedback from sensors 86 at each of the movable adsorption assemblies 108 (e.g., local temperatures upstream, downstream, or directly from the adsorption module 100).
[0038] Gas processing system 16 may also include maintenance mechanisms to facilitate inspecting, repairing, refurbishing, modifying, or otherwise correcting adsorption modules 100 in each of movable adsorption assemblies 108. Accordingly, each of movable adsorption assemblies 108 may include an access panel 162 removably coupled to sidewall 116 above access opening 164 aligned with straight-through positioning assembly 132 and respective adsorption module 100. Accordingly, as described in further detail below, access panel 162 may be removed to allow visual inspection and / or removal of adsorption module 100 through access opening 164. Access panel 162 may include a hinged door, a bolted door, a metal panel, a glass or other transparent panel for ease of viewing, or any combination thereof.
[0039] As further shown, the control system 14 includes a controller 76 coupled to each of the drives 146 of the direct positioning assembly 132, each component of the thermal control system 101 (e.g., one or more coolers 158, one or more heaters 160, cooling system 166, and heating system 168), and a plurality of sensors 86 disposed throughout each of the ducts 102 and 104. As described above with reference to FIG. 1 , each of the sensors is designated with an S; therefore, in the illustrated embodiment, the sensors are not all numbered. However, each of the sensors 86 may be disposed upstream and / or downstream of each of the illustrated components, such as the adsorption module 100, the cooler 158, and the heater 160, in each of the ducts 102 and 104. The sensors 86 may include temperature sensors, flow rate sensors, pressure sensors, fluid composition sensors, or any combination thereof. For example, sensor 86 may include a gas composition sensor configured to monitor the adsorption rate of undesirable gases from adsorption module 100 located in duct 102 and to monitor the desorption rate of undesirable gases from adsorption module 100 located in duct 104.
[0040] The rate of adsorption or desorption of the undesired gas can help facilitate control by controller 76 of the movement of adsorption module 100 between duct 102 and duct 104. For example, if the adsorption rate gradually decreases to a level below a threshold adsorption rate, controller 76 can be configured to operate drive 136 to move adsorption module 100 from duct 102 to duct 104, so that adsorption module 100 can undergo regeneration by desorbing undesired gas from adsorption module 100 via fluid stream 130. Similarly, if the desorption rate in duct 104 gradually decreases to a level below a threshold desorption rate, controller 76 can be configured to operate drive 136 to move adsorption module 100 from duct 104 to duct 102, so that adsorption module 100 can function to adsorb undesired gas from fluid stream 128 in duct 102. Thus, sensor feedback from sensor 86 can facilitate control by controller 76 to cycle adsorption modules 100 back and forth between ducts 102 and 104 to ensure that there are always one or more adsorption modules 100 efficiently adsorbing undesirable gases in duct 102 while other adsorption modules 100 are being regenerated in duct 104.
[0041] The controller 76 may also be configured to control the temperature of each of the ducts 102 and 104 via control of the cooler 158, the heater 160, the cooling system 166, and the heating system 168 of the thermal control system 101. For example, the controller 76 may be configured to control the cooler 158 and / or the cooling system 166 to adjust or maintain the temperature in the duct 102 and / or the individual adsorption units 100 below a threshold temperature, and the controller 76 may be configured to control the heater 160 and / or the heating system 168 to adjust or maintain the temperature in the duct 104 and / or the individual adsorption units 100 above a threshold temperature. Further details of the adsorption module 100, the movable adsorption assembly 108, the cooler 158, the heater 160, the cooling system 166, and the heating system 168 are described in more detail below with reference to FIGS. 3-20 .
[0042] 3 is a schematic diagram of an embodiment of a temperature control system 170 (e.g., an indirect heat exchange system) configured to provide temperature control for the cooler 158, the heater 160, the cooling system 166, and / or the heating system 168 of FIG. 2. For example, the temperature control system 170 may include a heat exchanger 172, a heat exchanger 174, and a fluid circuit 176 (e.g., a heat transfer circuit) extending between the heat exchangers 172 and 174. For example, the fluid circuit 176 may include multiple coils or tubes 178 in the heat exchanger 172 and multiple coils or tubes 180 in the heat exchanger 174. The fluid circuit 176 may be configured to circulate a heat transfer fluid or a working fluid, such as water, oil or a lubricant, a refrigerant, or any combination thereof. In certain embodiments, temperature control system 170 may have heat exchangers 172 and 174 and fluid circuit 176 arranged or configured as a heat pump cycle or a refrigeration cycle, such as a vapor compression cycle or a vapor absorption cycle. Thus, fluid circuit 176 may further include an expansion valve and a compressor to complete the heat pump cycle or the refrigeration cycle. The refrigerant may include, for example, R-32, HFC-32, or difluoromethane (CHF); R-134a, HFC-134a, or 1,1,1,2-tetrafluoroethane (CFCHF); R-410a or pentafluoroethane (CFCHF); R-290 or propane (CH); R-600a or isobutane (HC(CH)); R-717 or ammonia (NH); R-744 or carbon dioxide (CO); R-1234yf, HFO-1234yf, or 2,3,3,3-tetrafluoropropene (CHF); or any combination thereof.
[0043] In the illustrated embodiment, temperature control system 170 may be configured to transfer heat between a relatively low temperature fluid stream 182 passing through heat exchanger 172 and a relatively high temperature fluid stream 184 passing through heat exchanger 174. Fluid circuit 176 circulates a working fluid through coils or tubes 178 and 180 within heat exchangers 172 and 174 to enable heat transfer between the relatively low temperature fluid stream 182 and the relatively high temperature fluid stream 184. For example, low temperature fluid stream 182 is configured to transfer heat from the working fluid within coil or tube 178, and high temperature fluid stream 184 is configured to transfer heat to the working fluid within coil or tube 180. Thus, heat exchanger 172 may be described as a heater because the heated working fluid passing through coil or tube 178 causes an increase in the temperature of low temperature fluid stream 182. Because the relatively low temperature working fluid in the coil or tube 180 is configured to cool or reduce the temperature of the hotter fluid stream 184, the heat exchanger 174 may be described as a cooler. In certain embodiments, the temperature control system 170 may be configured as a heat pump, with the heat exchanger 172 being a condenser configured to cool and condense the working fluid in the fluid circuit 176 and heat the fluid stream 182, and the heat exchanger 174 being an evaporator configured to heat and evaporate the working fluid in the fluid circuit 176 and cool the fluid stream 184. In such embodiments (e.g., a heat pump), the fluid circuit 176 may further include an expansion valve downstream from the heat exchanger 172 (e.g., a condenser) and upstream from the heat exchanger 174 (e.g., an evaporator), and the fluid circuit 176 may include a compressor downstream from the heat exchanger 174 (e.g., an evaporator) and upstream from the heat exchanger 172 (e.g., a condenser).
[0044] In certain embodiments, temperature control system 170 may be located within gas processing system 16 in a variety of ways. For example, heat exchanger 172 may correspond to heater 160 and heat exchanger 174 may correspond to cooler 158, such that temperature control system 170 is located entirely within ducts 102 and 104. Alternatively or additionally, heat exchanger 172 may be located within duct 104 as heater 160, with heat exchanger 174 located outside gas processing system 16 in the path of an entirely separate hot fluid stream 184. Similarly, heat exchanger 174 may be located within duct 102 and function as cooler 158, with heat exchanger 172 located entirely outside gas processing system 16 in the path of a cold fluid stream 182 away from gas processing system 16. However, the various aforementioned configurations may be used alone or in combination with each other, as well as in combination with other types of coolers 158 and heaters 160.
[0045] In certain embodiments, temperature control system 170 may employ heat exchangers 172 and 174 associated with cooling system 166 and heating system 168. For example, heat exchanger 172 may correspond to heating system 168, and heat exchanger 174 may correspond to cooling system 166, such that the entire temperature control system 170 is disposed within ducts 102 and 104 in one or more of the movable adsorption assemblies 108. Alternatively or additionally, heat exchanger 172 may be disposed within duct 104 as heating system 168, with heat exchanger 174 disposed outside gas processing system 16 in the path of a completely separate hot fluid stream 184. Similarly, heat exchanger 174 may be disposed within duct 102 and function as cooling system 166, with heat exchanger 172 disposed entirely outside gas processing system 16 in a cold fluid stream 182 away from gas processing system 16.
[0046] 4 is a schematic diagram of one embodiment of a direct heat exchange system 190 configured to provide heating or cooling depending on the configuration of the system 190. For example, the illustrated direct heat exchange system 190 includes a fluid supply 192, a fluid distribution manifold 194, and a conduit 196 extending between the fluid supply 192 and the distribution manifold 194. The fluid conduit 196 may also include one or more flow control mechanisms, such as a fluid pump 198 and a fluid control valve 200. The fluid pump 198 is configured to pump a fluid flow from the fluid supply 192, and the fluid control valve 200 is movable between an open valve position and a closed valve position to regulate the flow rate of the fluid flow from the fluid supply 192. In this manner, the fluid pump 198 and the fluid control valve 200 are configured to control the flow of fluid from the fluid supply 192 to the fluid distribution manifold 194. The fluid distribution manifold 194 may also include a plurality of fluid nozzles 202 configured to output a spray 204 of fluid from the fluid supply 192. For example, fluid source 192 may contain a liquid or gas at a desired temperature to provide direct heating or cooling within fluid stream 128 or fluid stream 130 of gas processing system 16. Accordingly, direct heat exchange system 190 may be configured as cooler 158 and / or cooling system 166 by injecting a relatively low temperature fluid into fluid stream 128. Similarly, direct heat exchange system 190 may be configured as heater 160 and / or heating system 168 by injecting a relatively high temperature fluid into fluid stream 130. Fluid source 192 may include water, an inert gas such as nitrogen, air, steam, or another suitable gas or liquid. In certain embodiments, the injection location may be located upstream from a mobile adsorption assembly 108 having adsorption modules 100, directly into a mobile adsorption assembly 108 having adsorption modules 100, between consecutive mobile adsorption assemblies 108 having adsorption modules 100, or any combination thereof. Additionally, the direct heat exchange system 190 may be used alone or in combination with various components of the temperature control system 170 (e.g., an indirect heat exchange system) and the thermal control system 101 of FIG. 3, as described in further detail below.
[0047] Figure 5 is a perspective view of one embodiment of the adsorption module 100 of Figures 1 and 2. As shown, the adsorption module 100 includes a sorbent cartridge 210 disposed within a framework 212. The framework 212 includes sidewalls 214, 216, 218, and 220 that can collectively define a rectangular panel structure of the framework 212. For example, the sidewalls 214 and 216 can be flat rectangular panels that are parallel to one another, and the sidewalls 218 and 220 can be flat rectangular panels that are parallel to one another and perpendicular to the sidewalls 214 and 216. The sidewalls 214 and 216 or the sidewalls 218 and 220 can also be coupled to the slides 142 of the rail assembly 134 described above with reference to Figure 2.
[0048] The sorbent cartridge 210 may include a sorbent 222 surrounded and contained by a screen 224. The sorbent 222 may include a plurality of sorbent particles, beads, balls, strips, or individual elements of equal or different sizes and shapes. The screen 224 may have a wire mesh with openings small enough to retain the sorbent 222 while allowing fluid flow along the flow paths 110 and 118. In certain embodiments, the screen 224 extends along opposing upstream and downstream sides 226 and 228 of the sorbent cartridge 210, around the sides 230, 232, 234, and 236, or any combination thereof. The screen 224 thus allows relatively free flow of the fluid stream 128 or the fluid stream 130 through the sorbent 222 held in place by the screen 224. In some embodiments, screen 224 may be positioned only along upstream side 226 and downstream side 228, and solid side walls may be positioned along sides 230, 232, 234, and 236 of sorbent cartridge 210.
[0049] Additionally, in certain embodiments, the sorbent cartridges 210 may be removable from the framework 212 for replacement or modification as needed during operation of the gas processing system 16. For example, the sorbent cartridges 210 may be removable from the upstream side 226 and / or the downstream side 228 of the framework 212. While the embodiment of FIG. 5 shows one sorbent cartridge 210, embodiments of the sorbent module 100 may include any number and configuration of sorbent cartridges 210 that may be removably positioned within the framework 212.
[0050] FIG. 6 is a perspective view of one embodiment of a sorbent module 100 having multiple sorbent cartridges 210 arranged within a framework 212. The features of the sorbent cartridges 210 are substantially the same as those described above with reference to FIG. 5. However, the embodiment of FIG. 6 has multiple smaller sorbent cartridges 210 arranged in rows 240, 242, and 244 and columns 246 and 248. Column 248 is arranged along upstream side 226, and column 248 is arranged along downstream side 228. The illustrated sorbent cartridges 210 may be substantially the same size and configuration as one another. However, in some embodiments, the sorbent module 100 may have multiple sorbent cartridges 210 of different sizes and configurations, which may include different dimensions, different sorbents 222, different screen arrangements of screens 224, or any combination thereof. As shown, the adsorption module 100 has three rows 240, 242, and 244, but the adsorption module 100 may have any number of rows (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more rows). Similarly, while the illustrated adsorption module 100 has two columns 246 and 248, the adsorption module 100 may have any number of columns (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more columns).
[0051] In the illustrated embodiment, the framework 212 includes a plurality of cartridge openings 250 disposed in the sidewall 214, such that each of the sorbent cartridges 210 may be inserted and removed through one of the cartridge openings 250 in the framework 212. Accordingly, the sorbent module 100 includes cartridge openings 250 to facilitate easy inspection, refurbishment, replacement, and other maintenance operations for each of the sorbent cartridges 210 independent of one another. Furthermore, the entire sorbent module 100, such as the sorbent module 100 of FIGS. 5 and 6, may be configured to be inserted and removed through the access opening 164 in the duct 102, as described above with reference to FIG. 2.
[0052] FIG. 7 is a partial schematic diagram of one embodiment of one of the movable suction assemblies 108 shown in FIG. 2. In the illustrated embodiment, the movable suction assembly 108 has a suction module 100 slidably disposed along a linear positioning assembly 132 via rail assemblies 134 disposed on opposing sides 260 and 262 of the suction module 100. For example, each side 260 and 262 of the suction module 100 may have one or more slides 142 configured to slide or move along a corresponding rail 140 in a linear direction (e.g., a linear movement path) indicated by arrow 264. The opposing sides 260 and 262 may correspond to any of the opposing sides described above with reference to FIGS. 5 and 6. For example, the opposing sides 260 and 262 may correspond to the upstream side 226 and downstream side 228, the side walls 214 and 216, or the side walls 218 and 220 of the framework 212. In some embodiments, each of the opposing sides 260 and 262 of the suction module 100 may have multiple rail assemblies 134, such as rail assemblies 134 positioned along the corners or edges of the opposing sides 260 and 262, one or more intermediate locations along the sides 260 and 262, or a combination thereof. The illustrated rail assembly 134 has three slides 142 positioned within each rail 140 of each of the sides 260 and 262. However, certain embodiments of the rail assemblies 134 may include two, three, four, five, six, seven, eight, nine, ten, or more slides 142 positioned on each of the rails 140.
[0053] The slides 142 may include wheels, blocks of low-friction material, or a combination thereof. For example, the blocks of low-friction material may include low-friction metal or metal coating, low-friction plastic or plastic coating, low-friction ceramic or ceramic coating, nylon, polytetrafluoroethylene (PTFE), diamond-like carbon (DLC) coating, or any combination thereof. The slides 142 may also be partially or fully captured within each of the rails 140 such that the slides 142 cannot disengage from the rails 140 when moving the adsorption module 100 in the linear direction 264. Furthermore, as described above, the rails 140 generally extend the entire distance across each of the ducts 102 and 104, such that the rail assembly 134 allows for complete movement of the adsorption module 100 into one of the ducts 102 or 104. Further details of the rail assembly 134 are described in more detail below.
[0054] FIG. 8 is a partial cross-sectional view of one embodiment of the rail assembly 134 of FIGS. 2 and 7 , further illustrating details of the engagement between the rail 140 and the slide 142. As illustrated, the rail 140 may include a C-shaped cross-section 270 having an upper wall 272 and a lower wall 274 coupled to one another via a sidewall 276. For example, the upper wall 272 may include a plate 278 having a radially inner lip 280, and the lower wall 274 may have a plate 282 having a radially inner lip 284. For example, the plates 278 and 282 may be substantially parallel to one another, and the radially inner lips 280 and 284 may project inward toward one another around an interior channel 286. The sidewall 276 may also include a plate 288 coupled to the plates 278 and 282. 7 , the C-shaped section 270 extends linearly in the linear direction 264, such that the slide 142 can move along an interior channel 286 between the flat plates 278 and 282 of the upper and lower walls 272 and 274. Additionally, the radially inner lips 280 and 284 are configured to prevent the slide 142 from inadvertently exiting the C-shaped section 270 of the rail 140.
[0055] As described above, the slide 142 may be configured as a rigid, low-friction sliding material, a rotatable wheel, or a combination thereof. In the illustrated embodiment, the slide 142 has a wheel 290 rotatably coupled to a shaft 292, which is coupled to the framework 212 of the adsorption module 100 via a mount 294. The wheel 290 may also include a bearing 296 disposed around the shaft 292, thereby helping to facilitate rotation of the wheel 290 around the shaft 292. The mount 294 may be configured to fixedly or removably couple to the framework 212. For example, the mount 294 may be welded to the framework 212 via one or more weld joints 298. In some embodiments, the wheel 290 may represent a block of low-friction material to facilitate sliding along the rail 140, such as a low-friction metal, plastic, ceramic, or other suitable material.
[0056] 9 is a schematic diagram of one embodiment of the movable adsorbent assembly 108 of FIG. 2 , further illustrating details of a seal 150 disposed around an opening 148 in the intermediate wall 126 between the first duct 102 and the second duct 104. The opening 148 and the seal 150 facilitate movement of the adsorbent module 100 between the ducts 102 and 104, as described above with reference to FIG. 2 . As illustrated, the opening 148 is a rectangular opening that is contoured to the rectangular shape of the adsorbent module 100. The seal 150 is disposed around the opening 148.
[0057] In certain embodiments, seal 150 may include a seal frame or edge 310 disposed around opening 148 and a flexible seal material 312 disposed along seal frame or edge 310. For example, seal frame or edge 310 may have a rectangular shape that is contoured to or matches the rectangular shape of opening 148, and flexible seal material 312 may include a flexible metal, plastic, rubber, or other material, depending on the temperatures of fluid streams 128 and 130. For example, in certain embodiments, flexible seal material 312 may include a plurality of fibers 314 of brush seal 316. Accordingly, brush seal 316 may include a plurality of closely spaced fibers 314 made from flexible seal material 312 to facilitate dynamic sealing as adsorption module 100 moves through opening 148 between duct 102 and duct 104.
[0058] Regardless of the position of the adsorption module 100, the seal 150 is configured to hold the seal along the framework 212 of the adsorption module 100 to help prevent leakage of the fluid flows 128 and 130 between the ducts 102 and 104. In some embodiments, the seal 150 may include a plurality of different types of seals, such as a brush seal 316 with fabric 314, a metal seal, a plastic seal, a rubber seal, a cloth seal, or any combination thereof. The seal 150 may include a single continuous strip of flexible sealing material 312, individual pieces of flexible sealing material 312 (e.g., fabric 314 of the brush seal 316), overlapping flaps of flexible sealing material 312, or any combination thereof.
[0059] FIG. 10 is a partial cross-sectional view of the movable adsorption assembly 108 taken along line 10-10 of FIG. 9, further illustrating the adsorption module 100 sealed against the seal 150 within the opening 148 in the intermediate wall 126. As shown, the seal 150 has fibers 314 of a brush seal 316 positioned in contact with the framework 212 of the adsorption module 100. The fibers 314 are coupled to and supported by a seal frame or edge 310 that includes an edge wall 320 and opposing side walls 322. The edge wall 320 is configured to extend along an inner edge 324 of the opening 148, and the side walls 322 are configured to extend along opposing sides 326 of the intermediate wall 126. In this manner, the edge wall 320 and the opposing side walls 322 define a C-shaped structure 328 configured to be self-retained around the intermediate wall 126 at the opening 148. However, in certain embodiments, the C-shaped structure 328 of the seal frame or edge 310 may be further coupled to the intermediate wall 126 via a fixed joint, a removable fastener, or a combination thereof. For example, the fixed joint may include a welded joint, a brazed joint, or an integrally formed structure. The removable fastener may include a threaded bolt, a clamp, a spring or hook, a dovetail, or any combination thereof.
[0060] Again, the illustrated seal 150 has fibers 314 of a brush seal 316 bonded to a seal frame or edge 310. As shown, the fibers 314 are bonded directly to an edge wall 320. The fibers 314 of the brush seal 316 are configured to provide a seal between the intermediate wall 126 and the adsorption module 100 as the adsorption module 100 moves along the straight-line positioning assembly 132 between the duct 102 and the duct 104. In other embodiments, the fibers 314 may be replaced or supplemented with other sealing mechanisms, such as flexible flaps, flexible gaskets, or any combination thereof. These flexible flaps or gaskets may be made from flexible metal, plastic, or other materials.
[0061] FIG. 11 is a schematic diagram of one embodiment of the movable suction assembly 108 of FIG. 2 , further illustrating details of an access panel 162 disposed over an access opening 164 in the side wall 116 of the duct 102 to allow for insertion and removal of the suction module 100. In the illustrated embodiment, the access panel 162 is a rectangular-shaped panel disposed over the access opening 164, which may also be a rectangular-shaped access opening. The access panel 162 is removably coupled to the side wall 116 of the duct 102 via a plurality of fasteners 340. For example, the fasteners 340 may include threaded bolts, threaded nuts, threaded shafts, clips, clamps, rotatable latches, hinges, or any combination thereof. Details of the fasteners 340 are described in more detail below. The fasteners 340 are disposed around an edge or flange 342 of the access panel 162, which extends over or overlaps a portion of the side wall 116 outside the access opening 164. The fasteners 340 may be loosened, removed, or adjusted to allow removal or movement of the access panel 162 from the access opening 164, thereby providing access to the interior of the duct 102 for inspection, insertion, or removal of the suction module 100, as shown in FIG. 2.
[0062] 12 is a partial perspective view of one embodiment of the gas processing system 16 of FIG. 2 further illustrating details of the adsorption module 100 partially removed and protruding from the side wall 116 of the duct 102 through an access opening 164. As shown, the access panel 162 is removed from the access opening 164, thereby exposing the access opening 164 and allowing removal of the adsorption module 100. The fastener 340 may include a plurality of threaded shafts 350 coupled to the side wall 116, and the access panel 162 includes a plurality of shaft openings 352 for receiving the threaded shafts 350. The fastener 340 may also include a plurality of threaded nuts 354 configured to mate with the threaded shafts 350 on the exterior of the access panel 162, thereby removably securing the access panel 162 to the side wall 116. In the illustrated embodiment, the access panel 162 and the threaded nuts 354 are removed from the duct 102, thereby allowing access and removal of the adsorption module 100 from the duct 102.
[0063] The straight-line positioning assembly 132 allows the adsorbent module 100 to slide linearly out of the duct 102, as indicated by arrow 356, and cartridge openings 250 in the framework 212 of the adsorbent module 100 allow each of the sorbent cartridges 210 to be inserted and removed, as indicated by arrow 358. For example, each of the adsorbent modules 100 may be separately accessed through a respective access panel 162 and access opening 164, as shown in FIG. 2, while the remaining adsorbent modules 100 can continue to operate in either the duct 102 or the duct 104. While one of the adsorbent modules 100 is being inspected, removed, installed, or replaced, as shown in FIG. 12, one or more of the sorbent cartridges 210 may be separately accessed and moved through the cartridge openings 250. For example, each of the individual sorbent cartridges 210 may be linearly moved out of the cartridge opening 250, inspected, replaced, and reinstalled in its respective cartridge opening 250. 12 , each of the rail assemblies 134 may include a rail extension 360 configured to extend outward from the side wall 116 when the suction module 100 is withdrawn from the duct 102. When the suction module 100 is returned into the duct 102, the rail extension 360 may slide back into the interior of the duct 102.
[0064] FIG. 13 is a partial cross-sectional view of an embodiment of an access panel 162 coupled to the side wall 116 of the duct 102 at the access opening 164 shown in FIG. 12. In the illustrated embodiment, a threaded shaft 350 projects outwardly from the side wall 116, the access panel 162 is disposed around the threaded shaft 350 through the shaft opening 352, and a threaded nut 354 is threaded onto the threaded shaft 350 to compressively secure the access panel 162 to the side wall 116. In the illustrated embodiment, the access panel 162 may be sealed against the side wall 116 via a flat seal or gasket 370 disposed between the access panel 162 and the side wall 116. Additionally, the threaded nut 354 may be secured to the threaded shaft 350 with an intermediate washer 372 (e.g., a lock washer) between the threaded nut 354 and the access panel 162. For example, the washer 372 may be a conical or Belleville washer, a wave washer, a split or spring lock washer, a toothed lock washer, or any combination thereof.
[0065] FIG. 14 is a flow chart of one embodiment of a process 380 for treating gas in a system such as gas processing system 10 of FIG. 1. The gas treatment may correspond to fuel gas treatment, exhaust gas treatment, or other gas treatment for removing one or more undesirable gases as described in detail above. For example, the undesirable gases may include CO, H, S, SO, NO, or any combination thereof. In the illustrated embodiment, process 380 may include adsorbing gas from first fluid stream 128 in first duct 102 onto adsorption module 100 to produce treated first fluid stream 154, as indicated by block 382. The adsorption may include adsorption onto one or more sorbent cartridges 210 of adsorption module 100, as described in detail above. Process 380 may then continue to monitor one or more parameters related to the adsorption of the gas by adsorption module 100, as indicated by block 384. For example, process 380 may monitor various sensors 86 located throughout gas processing system 16, such as monitoring temperature, pressure, flow rate, gas composition of undesirable gases, rate of change of adsorption, or any combination thereof. Process 380 may then compare the parameters to one or more thresholds, as indicated by block 386. For example, process 380 may include comparing the adsorption rate to a threshold adsorption rate. The threshold adsorption rate may indicate that adsorption module 100 needs to be regenerated to remove undesirable gases adsorbed on adsorbent 222 of adsorbent cartridge 210.
[0066] The process 380 may then move the suction module 100 from the first duct 102 to the second duct 104 when the parameter meets the threshold, as indicated by block 388. Thus, the movable suction assembly 108 facilitates movement between the first duct 102 and the second duct 104, such as by moving the suction module 100 along the rail assembly 134 of the linear positioning assembly 132. In particular, the process 380 moves the suction module 100 along a linear movement path defined by the rail assembly 134, such as perpendicular to the longitudinal axes of the ducts 102 and 104.
[0067] The process 380 may then desorb gases from the adsorption modules 100 via the second fluid stream 130 in the second duct 104 to regenerate the adsorption modules 100, as indicated by block 390. As described above, regeneration in the second duct 104 may include flowing a heated fluid, such as steam, through and / or around the adsorption modules 100 to raise the temperature of the adsorbent 222 and assist in desorbing the undesired gases from the adsorption cartridges 210 into the fluid stream 130. The process 380 may then capture, cool, and compress the desorbed gases from the adsorption modules 100, as indicated by block 392. The undesired gases desorbed from the adsorption modules 100 may be captured directly at each respective adsorption module 100, captured in a subsequent process downstream from the adsorption module 100, or captured by another technique. Cooling may also facilitate separation of the fluid stream 130 from the desorbed gas, such as by condensing the vapor stream to enable separation of the desorbed gas in the duct 104. Additionally, the captured gas may pass through one or more heat exchangers, compressors, or other processing systems before being stored or sent to a pipeline.
[0068] Process 380 may then also monitor one or more parameters related to the desorption of gas from adsorption module 100, as indicated by block 394. For example, process 380 may monitor the temperature, flow rate, gas composition, or desorption rate of gas from adsorption module 100. Process 380 may then compare the one or more parameters to a corresponding threshold, as indicated by block 396. The comparison in block 396 may include comparing the desorption rate to a threshold desorption rate, such that when the parameter meets the threshold, a sufficiently low desorption rate may trigger process 380 to move adsorption module 100 from second duct 104 to first duct 102, as indicated by block 398. Process 380 may then repeat the process, as indicated by block 400. Thus, process 380 can cycle or move adsorption module 100 repeatedly back and forth between duct 102 and duct 104, thereby allowing adsorption of undesirable gases onto adsorption module 100 in duct 102 and desorption of undesirable gases from adsorption module 100 in duct 104.
[0069] FIG. 15 is a schematic diagram of one embodiment of the gas processing system of FIGS. 1-14 , further illustrating details of the thermal control system 101 having the cooling system 166 and heating system 168 described above with reference to FIG. 2 . The illustrated gas processing system 16 includes the adsorption system 106 of FIG. 2 , with one of the movable adsorption assemblies 108 shown for simplicity. However, the adsorption system 106 of FIG. 15 may include any number of movable adsorption assemblies 108 (e.g., from one to ten or more), such as the six movable adsorption assemblies 108 shown in FIG. 2 . Thus, the illustrated embodiment of FIG. 15 is only used to illustrate details of one of the movable adsorption assemblies 108, specifically aspects of the thermal control system 101. The illustrated features of FIG. 15 may be part of the gas processing system 16 of all other figures and embodiments described herein.
[0070] The cooling system 166 may include a cooling supply system 410 coupled to a heat exchanger 412 disposed in the duct 102 of the adsorption unit 414 of the adsorption system 106. Similarly, the heating system 168 may include a heating supply system 416 coupled to a heat exchanger 418 disposed in the duct 104 of the desorption unit 420 of the adsorption system 106. The illustrated heat exchangers 412 and 418 are separate from one another, e.g., separated by an intermediate wall 126 disposed between the ducts 102 and 104 of the respective adsorption unit 414 and desorption unit 420. The thermal control system 101 may also include a heat exchange system 422 having a heat exchanger 424 disposed in the duct 102 of the adsorption unit 414 and a heat exchanger 426 disposed in the duct 104 of the desorption unit 420. Heat exchange system 422 is configured to exchange heat between duct 102 of adsorption unit 414 and duct 104 of desorption unit 420 via heat exchange between heat exchangers 424 and 426, as described below. Separately or in combination with one another, heat exchangers 412 and 424 are configured to provide cooling for flue gas 94 flowing through duct 102 of adsorption unit 414 and / or cooling for adsorption module 100, and heat exchangers 418 and 426 are configured to provide heating within duct 104 of desorption unit 420 and / or heating within adsorption module 100. In certain embodiments, heat exchangers 412 and 424 are integrated as a combined or common heat exchanger, and heat exchangers 418 and 426 are integrated as a combined or common heat exchanger. The cooling provided in the duct 102 of the adsorption unit 414 and / or the adsorption module 100 (i.e., when disposed within the duct 102) is configured to aid in the adsorption of undesired gases from the exhaust gas 94 by adjusting the temperature within a suitable temperature range for the adsorption process. Similarly, the heating provided in the duct 104 of the desorption unit 420 and / or the adsorption module 100 (i.e., when disposed within the duct 104) is configured to aid in the desorption of undesired gases from the adsorption module 100 by adjusting the temperature within a suitable temperature range for the desorption process.
[0071] The cooling supply system 410 is coupled to one or more cooling circuits 428 disposed within a housing or body 430 of the heat exchanger 412 in the duct 102 of the adsorption unit 414. The cooling circuit 428 may include a fluid flow path (e.g., a series of chambers, channels, or other hollow spaces) defining one or more flow paths throughout the housing or body 430, one or more conduits or tubes extending along the flow path throughout the housing or body 430, or a combination thereof. The cooling circuit 428 may include a wound flow path, a coiled flow path, a spiral or helical flow path, a serpentine flow path, a serpentine flow path, or any combination thereof. The cooling circuit 428 is coupled to a manifold 432 of the heat exchanger 412 at an inlet 434 and an outlet 436. In certain embodiments, the housing or body 430 may include a U-shaped structure 438 having a module receptacle or chamber 440 surrounded by opposing sides 442 and 444 (e.g., upstream and downstream sides) and a side 446 (e.g., side) adjacent the manifold 432. The chamber 440 is configured to receive the adsorption module 100 when positioned within the adsorption unit 414. Thus, the U-shaped structure 438 has a cooling circuit 428 extending along the sides 442, 444, and 446, thereby providing cooling along at least three sides of the chamber 440 and the adsorption module 100.
[0072] Cooling system 166 is configured to circulate cooling fluid 448 from cooling supply system 410 into inlet 434 of manifold 432, through cooling circuit 428, and out outlet 436 of manifold 432 back to cooling supply system 410. In certain embodiments, cooling supply system 410 receives cooling fluid 448 that is already cooled within an appropriate temperature range, such that no further temperature conditioning is performed by any chillers or heat exchangers within cooling supply system 410. For example, cooling supply system 410 may receive cooling fluid 448 from another cooled fluid source within gas turbine system 10, such as cooling water from a cooling tower. However, in certain embodiments, cooling supply system 410 receives cooling fluid 448 at a temperature outside the desired temperature range; therefore, cooling supply system 410 may perform further temperature control (e.g., cooling and / or heating) on cooling fluid 448 to regulate its temperature within the appropriate temperature range. For example, the cooling fluid 448 may be cooled by one or more additional chillers or heat exchangers in the cooling supply system 410, or the cooling fluid 448 may be heated by one or more additional heaters or heat exchangers in the cooling supply system 410.
[0073] Thus, the cooling supply system 410 may include a single heat exchange or single-fluid system 450 and / or multiple heat exchange or multiple-fluid systems 452 configured to supply cooling fluid 448 at a temperature range suitable for circulating and cooling through the cooling circuit 428. In other words, the cooling fluid 448 may be the only cooling fluid (e.g., a liquid coolant such as water) used by the single-fluid system 450, or the cooling fluid 448 (e.g., a liquid coolant such as water) may be cooled by another cooling fluid (e.g., a liquid or gas) in the multi-fluid system 452. In certain embodiments, the cooling supply system 410 includes one or more pumps, valves, pressure regulators, sensors, filters (e.g., particulate filters, separators, etc.), treatment units (e.g., chemical treatment units, ultraviolet treatment units, etc.), or any combination thereof, configured to control various parameters and quality of the cooling fluid 448 supplied to the heat exchanger 412.
[0074] The heating supply system 416 is coupled to one or more heating circuits 460 disposed within a housing or body 462 of a heat exchanger 418 in the duct 104 of the desorption unit 420. The heating circuit 460 may include a fluid flow path (e.g., a series of chambers, channels, or other hollow spaces) defining one or more flow paths throughout the housing or body 462, one or more conduits or tubes extending along the flow path throughout the housing or body 462, or a combination thereof. The heating circuit 460 may include a wound flow path, a coiled flow path, a spiral or helical flow path, a serpentine flow path, a serpentine flow path, or any combination thereof. The heating circuit 460 is coupled to a manifold 464 of the heat exchanger 418 at an inlet 468 and an outlet 470. The housing or body 462 of the heat exchanger 418 may have a structure similar to the housing or body 430 of the heat exchanger 412. In certain embodiments, housing or body 462 may include a U-shaped structure 472 having a module receptacle or chamber 480 surrounded by opposing sides 474 and 476 (e.g., upstream and downstream sides) and a side 478 (e.g., lateral side) adjacent manifold 464. Chamber 480 is configured to receive adsorption module 100 when positioned within desorption unit 420. Thus, U-shaped structure 472 has a heating circuit 460 extending along sides 474, 476, and 478, thereby providing heating along at least three sides of chamber 480 and adsorption module 100.
[0075] The adsorption module 100 is configured to move in alternating directions (e.g., back and forth) between a chamber 440 in a housing or body 420 in the duct 102 of the adsorption unit 414 and a chamber 480 in a housing or body 462 in the duct 104 of the desorption unit 420. Movement of the adsorption module 100 is described in detail above with reference to FIG. 2 , and the adsorption module 100 can move back and forth between the chamber 440 in the adsorption unit 414 and the chamber 480 in the desorption unit 420 via the straight-line positioning assembly 132 of the movable adsorption assembly 108. In certain embodiments, the controller 76 may be configured to selectively engage or disengage the cooling system 166 and the heating system 168 depending on the position of the adsorption module 100, particularly the cooling systems 166 and the heating systems 168 assigned to or coupled to individual movable adsorption assemblies 108 as shown in FIG. 2 . When the adsorption module 100 is disposed in the adsorption unit 414, the controller 76 can deactivate the heating system 168 and activate and / or control the cooling system 166 to provide a suitable temperature range for the adsorption process. When the adsorption module 100 is disposed in the desorption unit 420, the controller 76 can deactivate the cooling system 166 and activate and / or control the heating system 168 to provide a suitable temperature range for the desorption process.
[0076] Heating system 168 is configured to circulate heating fluid 482 from heating supply system 416 into inlet 468 of manifold 464, through heating circuit 460, and out outlet 470 of manifold 464 back to heating supply system 416. In certain embodiments, heating supply system 416 receives heating fluid 482 that is already heated within an appropriate temperature range, such that no further temperature adjustment is performed by any heater or heat exchanger within heating supply system 416. For example, heating supply system 416 may receive heating fluid 482 from another heated fluid source within gas turbine system 10, such as heated water and / or steam 96 from HRSG 27, steam turbine 29, and / or boiler 95. However, in certain embodiments, heating supply system 416 receives heating fluid 482 at a temperature outside the desired temperature range; therefore, heating supply system 416 may perform further temperature control (e.g., heating and / or cooling) on heating fluid 482 to adjust the temperature within the appropriate temperature range. For example, the heating fluid 482 may be heated by one or more additional heaters or heat exchangers in the heating supply system 416, or the heating fluid 482 may be cooled by one or more additional coolers or heat exchangers in the heating supply system 416.
[0077] Thus, the heating supply system 416 may include a single heat exchange or single fluid system 484 and / or multiple heat exchange or multiple fluid systems 486 configured to supply the heating fluid 482 at a temperature range suitable for circulating and heating through the heating circuit 460. In other words, the heating fluid 482 may be the only heating fluid (e.g., liquid or gas) used by the single fluid system 484, or the heating fluid 482 (e.g., liquid or gas) may be heated by another heating fluid (e.g., liquid or gas) in the multi-fluid system 486. In certain embodiments, the heating supply system 416 may use heated water, steam, or another heated fluid to circulate directly through the heating circuit 460 as the heating fluid 482, or to circulate indirectly as another heating fluid in another heat exchanger to provide heating for the heating fluid 482, or a combination thereof. In certain embodiments, the heating supply system 416 includes one or more pumps, valves, pressure regulators, sensors, filters (e.g., particulate filters, separators, etc.), treatment units (e.g., chemical treatment units, ultraviolet treatment units, etc.), or any combination thereof, configured to control various parameters and quality of the heating fluid 482 supplied to the heat exchanger 418.
[0078] Heat exchange system 422 may also be used to provide both cooling in adsorption unit 414 via heat exchanger 424 and heating in desorption unit 420 via heat exchanger 426. In the illustrated embodiment, heat exchange system 422 has heat exchangers 424 and 426 disposed along a closed-loop heat transfer circuit 490, which may be disposed within a housing or body 492 of heat exchange system 422. Housing or body 492 may include housing portions 494 and 496 disposed within ducts 102 and 104 of adsorption unit 414 and desorption unit 420, respectively. Housing portions 494 and 496 may be integral parts or separate sections of housing or body 492. However, portions 494 and 496 of housing or body 492 generally support at least a portion or all of closed-loop heat transfer circuit 490, including heat exchangers 424 and 426, compressor 498, and expansion valve 500. In some embodiments, the compressor 498 and / or the expansion valve 500 may be located within the duct 102 , within the duct 104 , or external to both the ducts 102 and 104 .
[0079] The closed-loop heat transfer circuit 490 is configured to circulate the working fluid 502 through the heat exchanger 424, the compressor 498, the heat exchanger 426, the expansion valve 500, and back to the heat exchanger 424. The working fluid 502 generally transfers heat, changes phase (e.g., liquid and vapor), and / or is heated or cooled while flowing through the closed-loop heat transfer circuit 490. In the illustrated embodiment, the heat exchanger 424 may be an evaporator 504, and the heat exchanger 426 may be a condenser 506. During operation, the flue gas 94 flows through the duct 102 of the adsorption unit 414 and transfers heat to the working fluid 502 circulating through the evaporator 504 of the heat exchanger 424, thereby evaporating the working fluid 502 and producing a warm gas or vapor, as indicated by arrow 508. Thus, the transfer of heat from the flue gas 94 to the working fluid 502 helps the adsorption module 100 cool the flue gas 94 while it adsorbs undesirable gases from the flue gas 94. The warm gas 508 then flows through the compressor 498, which compresses the warm gas 508 to produce hot gas, as indicated by arrow 510. The hot gas 510 then flows through the condenser 506 of the heat exchanger 426, thereby transferring heat from the hot gas 510 to the adsorption module 100 (e.g., which acts as a heat source for the desorption process) when disposed within the chamber 480. As the heat is transferred to the adsorption module 100, the heat helps desorb the undesirable gases from the adsorbent within the adsorption module 100, as described above. Furthermore, as heat is transferred to the adsorption module 100, the hot gas 510 cools and condenses in the condenser 506 of the heat exchanger 426, thereby producing a warm liquid, as indicated by arrow 512. The warm liquid 512 then passes through expansion valve 500, which causes expansion of the warm liquid 512, resulting in cooling and producing a cold liquid, as indicated by arrow 514. The cold liquid 514 flows through the evaporator 504 of the heat exchanger 424, thereby providing cooling to the exhaust gas 94 in the duct 102 of the adsorption unit 414.Again, the cryogenic liquid 514 is heated to help cool the exhaust gas 94 to an appropriate temperature to facilitate adsorption of undesirable gases in the adsorption module 100 and to produce warm gas 508 for continued circulation in the closed-loop heat transfer circuit 490 of the heat exchange system 422.
[0080] The working fluid 502 circulating throughout the closed-loop heat transfer circuit 490 may include any suitable thermal fluid that may undergo a phase change between a liquid and a gas or vapor. For example, the working fluid 502 may include a refrigerant, water, or any other suitable thermal fluid. In the illustrated embodiment, the evaporator 504 of the heat exchanger 424 is coupled to and extends around the U-shaped structure 438 of the housing or body 430 along both opposing sides 442 and 444 such that the evaporator 504 can provide cooling across the chamber 440 and the adsorption module 100 when disposed within the adsorption unit 414. Similarly, the condenser 506 of the heat exchanger 426 extends across opposing sides 474 and 476 of the U-shaped structure 472 of the housing or body 462 such that heating is provided across the chamber 480 and the adsorption module 100 when disposed within the desorption unit 420. However, any suitable arrangement of heat exchangers 424 and 426 may be used with the movable adsorption assembly 108 of the adsorption system 106 .
[0081] As further shown, the adsorption unit 94 outputs treated gas 97 after adsorption of undesired gases (e.g., CO) in the adsorption module 100 of the mobile adsorption assembly 108. The cooling system 166 is configured to provide cooling to provide an appropriate temperature to the flue gas 94 and / or the adsorbent in the adsorption module 100 to improve the adsorption process in the adsorption module 100 in the adsorption unit 414. Thus, the cooling system 166 is configured to provide cooling within the chamber 440 and the adsorption module 100 when disposed in the adsorption unit 414, thereby aiding in the adsorption of undesired gases (e.g., CO) from the flue gas 94 onto the adsorbent in the adsorption module 100. In certain embodiments, the cooling system 166 may include a heat exchanger 412 coupled to the cooling supply system 410, a heat exchanger 424 of the heat exchange system 422, or a combination thereof.
[0082] Similarly, heating system 168 is configured to provide heating to provide an appropriate temperature to the sorbent in sorption module 100 to improve the desorption process in sorption module 100 in desorption unit 420. Thus, heating system 168 is configured to provide heating within chamber 480 and sorption module 100 when disposed in desorption unit 420, thereby assisting in desorbing undesired gases (e.g., CO) from the sorbent of sorption module 100 and outputting captured gas 520 (e.g., CO). In certain embodiments, heating system 168 may include a heat exchanger 418 coupled to heating supply system 416, a heat exchanger 426 of heat exchange system 422, or a combination thereof.
[0083] The captured gas 520 may then flow through downstream equipment 522, which may include multiple downstream components 524. The downstream components 524 are configured to facilitate extraction of the captured gas 520 from the desorption unit 420 and / or further process the captured gas 520. For example, the downstream components 524 may include a vacuum system 526, a dehydration system 528, and a compression system 530, as well as a storage and / or pipeline 532. The vacuum system 526 (e.g., a vacuum pump driven by an electric motor) is configured to provide suction or vacuum to draw the captured gas 520 from the duct 104 of the desorption unit 420 when the adsorption module 100 is positioned within the chamber 480 for the desorption process. The dehydration system 528 is configured to extract any moisture, such as water, from the captured gas 520. The compression system 530 is configured to compress the captured gas 520 for further storage or transport via the storage and / or pipeline 532.
[0084] Controller 76 of control system 14 is coupled to sensors 86, cooling system 166, heating system 168, and heat exchange system 422 of thermal control system 101. In particular, controller 76 may be coupled to cooling supply system 410, heating supply system 416, and various components of heat exchange system 422, such as compressor 498, expansion valve 500, or other flow control and monitoring equipment. Sensors 86 may be located both upstream and downstream of movable adsorption assembly 108, in both duct 102 of adsorption unit 414 and duct 104 of desorption unit 420. Thus, sensor 86 can provide sensor feedback both upstream and downstream of movable adsorption assembly 108, such as sensor feedback of temperature, gas composition, pressure, flow rate, or any combination thereof, which can facilitate control of temperature in adsorption unit 414 and desorption unit 420 via thermal control system 101. For example, if the sensor 86 indicates a temperature that is too high or too low in the adsorption unit 414 or the desorption unit 420, the controller 76 may be configured to control the temperature via the cooling supply system 410 of the cooling system 166, the heating supply system 416 of the heating system 168, and the compressor 498 and / or expansion valve 500 of the heat exchange system 422.
[0085] In certain embodiments, the adsorption system 106 of the gas processing system 16 may include all or a portion of the thermal control system 101 for temperature control in the adsorption unit 414 and the desorption unit 420. For example, the thermal control system 101 may include only the heat exchange system 422, only the cooling system 166 with the heat exchanger 412, only the heating system 168 with the heat exchanger 418, or all aspects of the thermal control system 101, including the cooling system 166, the heating system 168, and the heat exchange system 422. Furthermore, the cooling supply system 410 and the heating supply system 416 may have various embodiments, such as single-fluid systems 450 and 484 and / or multi-fluid systems 452 and 486, as described in more detail below.
[0086] 1-15 , further illustrating details of the single-fluid systems 450 and 484 of the cooling supply system 410 and the heating supply system 416 of the thermal control system 101 of FIG. 15 . In certain embodiments, the single-fluid systems 450 and 484 are configured to obtain thermal fluids (e.g., cooled fluid 552 and heated fluid 572) from other source equipment within the gas turbine system 10, where the thermal fluids may already be at suitable temperatures for cooling and heating within the thermal control system 101. For example, the thermal control system 101 may include heat exchangers 412 and 418 disposed within the respective adsorption unit 414 and desorption unit 420, and the thermal fluids (e.g., cooled fluid 552 and heated fluid 572) may be routed to the heat exchangers 412 and 418 from their respective source equipment. The source equipment may include HRSG 27, steam turbine 29, boiler 95, water cooling tower, water tank, or any combination thereof. In some embodiments, the thermal fluid may still be received from other source equipment and routed through heat exchangers 412 and 418, although additional heat exchangers may be used to adjust the temperature of the thermal fluid.
[0087] In the illustrated embodiment, the single-fluid system 450 of the cooling supply system 410 includes a cooling control system 550 configured to receive a cooled fluid 552, such as water 554. The cooling control system 550 is configured to supply the cooled fluid 552 as the cooling fluid 448 through the cooling circuit 428 of the heat exchanger 412 disposed in the duct 102 of the adsorption unit 414. The cooling control system 550 may include multiple cooling control components 556, such as cooling control components 558, 560, and 562. The cooling control component 558 may include one or more flow control components, such as one or more valves, pumps, pressure regulators, or any combination thereof, that may be controlled by the controller 76 to control the flow of the cooled fluid 552 as the cooling fluid 448 therethrough into the cooling circuit 428. The cooling control component 560 may include one or more filters or fluid treatment components, such as a particulate filter, an ultraviolet treatment system, a chemical treatment system, a separator, or any combination thereof. The cooling control component 562 may include one or more temperature control components, such as a temperature sensor, a temperature control for adjusting flow rate (e.g., via flow control component 558), a temperature control for adjusting temperature (e.g., a chiller and / or heater), or any combination thereof. For example, the temperature control component may include a chiller configured to cool the chilled fluid 552 for use as the cooling fluid 448 by transferring heat from the chilled fluid 552 through one or more heat exchangers. For example, the chiller may include a fan configured to direct airflow across a heat exchanger to transfer heat from the chilled fluid 552, or the chiller may include a pump configured to circulate a different fluid through a heat exchanger to transfer heat from the chilled fluid 552. As a further example, the chiller may include one or more expanders (e.g., turboexpanders) configured to reduce the temperature of the chilled fluid 552 via an expansion process.In certain embodiments, when the temperature of the cooled fluid 552 falls below a lower temperature threshold, the temperature control component may include a heater configured to heat the cooled fluid 552 for use as the cooling fluid 448 by transferring heat to the cooled fluid 552 via one or more heat exchangers. In some embodiments, the temperature control component may exclude any additional heat exchangers, fans, pumps, and / or expanders, such that the cooled fluid 552 may be received and supplied to the heat exchanger 412 without further temperature conditioning.
[0088] Cooling control system 550 may receive cooled fluid 552 from one or more sources throughout system 10. For example, cooled fluid 552 may be received from HRSG 27, steam turbine 29, a water cooling tower, a water reservoir, a water treatment system for gas turbine system 10, or another independent thermal system of gas turbine system 10, or any combination thereof. In some embodiments, cooled fluid 552 may not be derived from another external source within gas turbine system 10; rather, cooling control system 550 may operate as a closed loop by circulating cooling fluid 448 through cooling circuit 428 and cooling control system 550. In either case, cooling control system 550 operates as a single-fluid system 450, using one cooling fluid 448 to circulate throughout cooling circuit 428. The cooling system 166 having the single fluid system 450 operates substantially as described above with reference to FIG. 15 , with the cooling fluid 448 being provided to help regulate the temperature of the exhaust gas 94 and / or the adsorption module 100 within an appropriate temperature range to improve the adsorption process within the adsorption module 100.
[0089] The heating system 168 includes a heating supply system 416 having a single fluid system 484 including a heating control system 570 configured to receive a heated fluid 572, such as steam 574. The heating control system 570 is configured to supply the heated fluid 572 as the heating fluid 482 for circulation throughout the heating circuit 460 of the heat exchanger 418 in the desorption unit 420. The heated fluid 572 may include steam 574, such as steam 96 from the HRSG 27, the steam turbine 29, the boiler 95, one or more additional steam sources or steam generators, or any combination thereof. In some embodiments, the heated fluid 572 may alternatively or additionally include heated water, heated lubricant, or another heated liquid or gas available in the gas turbine system 10.
[0090] Heating control system 570 may include one or more heating control components 576, such as heating control components 578, 580, and 582. Heating control component 578 may include one or more flow control components, such as one or more valves, pumps, pressure regulators, or any combination thereof, that may be controlled by controller 76 to control the flow of heated fluid 572 as heating fluid 482 therethrough into heating circuit 460. Heating control component 580 may include one or more filters or fluid treatment components, such as a particulate filter, an ultraviolet treatment system, a chemical treatment system, a separator, a water removal unit or drain, or any combination thereof. Heating control component 582 may include one or more temperature control components, such as a temperature sensor, a temperature control for regulating flow rate (e.g., via flow control component 580), a temperature control for regulating temperature (e.g., a cooler and / or heater), or any combination thereof. For example, the temperature control component may include a heater configured to heat the heated fluid 572 for use as the heating fluid 482 by transferring heat from the heated fluid 572 through one or more heat exchangers. For example, the heater may include one or more electric heaters, or the heater may include a pump configured to circulate a different fluid through a heat exchanger to transfer heat to the heated fluid 572. In certain embodiments, when the temperature of the heated fluid 572 exceeds a higher temperature threshold, the temperature control component may include a cooler configured to cool the heated fluid 572 for use as the heating fluid 482 by transferring heat to the heated fluid 572 through one or more heat exchangers.
[0091] In some embodiments, the temperature control components may exclude any additional heat exchangers, heaters, coolers, and / or pumps, such that the heated fluid 572 may be received and supplied to the heat exchanger 418 without further temperature conditioning. For example, the heating control system 570 may selectively extract or receive the thermal fluid 572 from one or more sources depending on the conditions at the source and the appropriate temperature range for the desorption process. In certain embodiments, the thermal control system 57 may selectively extract the thermal fluid 572 (e.g., steam 574) from one or more of the low-pressure (LP), intermediate-pressure (IP), and / or high-pressure (HP) sections of the HRSG 27 and / or steam turbine 29. Thus, the steam 574 may be low-pressure (LP) steam, intermediate-pressure (IP) steam, or high-pressure (HP) steam depending on the extraction point from the HRSG 27 and / or steam turbine 29. The steam 574 may also be extracted from other sources, such as the boiler 95 and / or steam generators within the gas turbine system 10. Additionally, the thermal fluid 572 may be a mixture of steam 574 and heated water. By controlling the extraction point, the heating control system 570 may be configured to provide the heated fluid 572 without further heating, or in some conditions, with some cooling to reduce the temperature.
[0092] Thus, heating control system 570 regulates, processes, and controls the temperature of heated fluid 572, such as steam 574, which may be used directly as heating fluid 482 to heat the adsorbent in adsorption module 100 in chamber 480 via heat exchange along heating circuit 460. Again, the addition or transfer of heat to adsorption module 100 aids in desorbing undesired gases from adsorption module 100, thereby producing trapped gas 520. Heating fluid 482, such as steam 574, flows through heating circuit 460, thereby transferring heat to the adsorbent in adsorption module 100 and facilitating desorption of undesired gases to produce trapped gas 520.
[0093] In the illustrated embodiment, controller 76 of control system 14 is coupled to both cooling control system 550 and heating control system 570, thereby monitoring and controlling the temperature and supply of cooling fluid 448 through cooling circuit 428 and heating fluid 482 through heating circuit 460. Again, as described above with reference to FIG. 15 , controller 76 can monitor sensors 86 upstream and downstream of adsorption module 100 (e.g., when disposed within adsorption unit 414 and desorption unit 420), thereby helping to control the adsorption and desorption processes via control of the temperatures in adsorption unit 414 and desorption unit 420, respectively. Controller 76 is also coupled to heat exchange system 422 to control cooling by heat exchanger 424 and heating by heat exchanger 426, as described in detail above with reference to FIG. 15 . Except as noted above, adsorption system 106 of gas processing system 16 of FIG. 16 is substantially the same as that described above with reference to FIG. 15 .
[0094] Figure 17 is a schematic diagram of one embodiment of gas processing system 16 of Figures 1-15 further illustrating aspects of multi-fluid systems 452 and 486 of cooling supply system 410 and heating supply system 416 of thermal control system 101. Otherwise, the components and functions described above with reference to Figure 15 are substantially the same in Figure 17. In certain embodiments, multi-fluid systems 452 and 486 are configured to obtain thermal fluids (e.g., cooled fluid 552 and heated fluid 572) from other source equipment within gas turbine system 10, and the thermal fluids may not be within a temperature range suitable to enable or improve adsorption of undesirable gases in adsorption unit 414 and / or desorption of undesirable gases in desorption unit 420. Thus, multi-fluid systems 452 and 486 provide indirect heat transfer between thermal fluids (e.g., cooled fluid 552 and heated fluid 572) and cooling fluid 448 and heating fluid 482 via one or more additional heat exchangers (e.g., heat exchangers 602 and 622). As a result, multi-fluid system 452 is configured to provide heat exchange between at least two fluids to control the temperature within a suitable cooling temperature range to enable or improve the adsorption process, and multi-fluid system 486 is configured to provide heat exchange between at least two fluids to control the temperature within a suitable heating temperature range to enable or improve the desorption process.
[0095] In the illustrated embodiment, the multi-fluid system 452 of the cooling supply system 410 includes a cooling control system 550 having a cooling control component 556, as described above. The cooling control system 550 is configured to receive a cooled fluid 552, such as water 554, condition the cooled fluid 552, and deliver it as cooling fluid 600 to a heat exchanger 602. The heat exchanger 602 is configured to transfer heat (e.g., indirect heat transfer) between the cooling fluid 448 and the cooling fluid 600, wherein the cooling fluids 448 and 600 are isolated from one another. The cooling fluid 448 circulates through the cooling circuit 428 of the heat exchanger 412 and the cooling circuit 604 of the heat exchanger 602, where the cooling circuits 428 and 604 collectively define a single closed-loop cooling circuit 606 that extends through both the heat exchangers 412 and 602. In certain embodiments, the cooling circuit 604 of the heat exchanger 602 is removably or permanently coupled to the cooling circuit 428 of the heat exchanger 412, and the heat exchanger 602 is disposed outside the adsorption unit 414 and the heat exchanger 414 is disposed inside the adsorption unit 414.
[0096] The heat exchanger 602 has a body or housing 608 with a cooling passage 610 disposed along and around a cooling circuit 604. For example, the cooling passage 610 may include one or more passages, channels, or cavities within the body or housing 608, with the cooling passage 610 substantially surrounding the cooling circuit 604 within the body or housing 608. The cooling circuit 604 may include a cooling coil separate from the cooling passage 610, a wound tube, or any combination thereof. In certain embodiments, the cooling circuit 604 may include one or more conduits or tubes extending in a wound passage, a coiled passage, a spiral or helical passage, a serpentine passage, a serpentine passage, or any combination thereof.
[0097] During operation, cooling fluid 600 from cooling supply system 410 flows through cooling passages 610 of heat exchanger 602, where cooling fluid 600 is configured to regulate (e.g., lower or raise) the temperature of cooling fluid 448 circulating through cooling circuit 606. For example, cooling fluid 600 can transfer heat from cooling fluid 448 in heat exchanger 602, thereby cooling cooling fluid 448 to a temperature within a temperature range suitable for the adsorption process. In some embodiments, cooling fluid 600 can transfer heat to cooling fluid 448 in heat exchanger 602, thereby heating cooling fluid 448 to a temperature within a temperature range suitable for the adsorption process. Thus, heat exchanger 602 generally transfers heat between cooling fluids 448 and 600 such that cooling fluid 448 is thermally regulated to a temperature within a temperature range suitable for the adsorption process. The direction of heat transfer may depend on the source and temperature of cooled fluid 552, the temperature of exhaust gas 94, and other considerations.
[0098] After transferring heat between the cooling fluids 448 and 600, the heat exchanger 602 discharges the thermally conditioned cooling fluids 448 and 600. The cooling fluid 448 discharged from the heat exchanger 602 flows through the heat exchanger 412 to cool the exhaust gas 94 to enable or improve the adsorption process. The cooling fluid 448 can then flow back into the heat exchanger 602 to complete the closed-loop cooling circuit 606, where the cooling fluid 448 then begins another pass through the closed-loop cooling circuit 606. In the illustrated embodiment, the closed-loop cooling circuit 606 includes one or more pumps 612 configured to pump the cooling fluid 448 through the closed-loop cooling circuit 606, which includes the cooling circuits 428 and 604 of the heat exchangers 412 and 602. Alternatively, after cooling fluid 600 exits through heat exchanger 602, cooling fluid 600 may flow or recirculate to cooling control system 550 and / or may flow along one or more flow paths to another location within gas turbine system 10. In some embodiments, cooling fluid 600 may flow through a closed-loop cooling circuit 614 having cooling control system 550 and heat exchanger 602.
[0099] Thus, multi-fluid system 452 includes at least cooling fluid 448 circulating through cooling circuit 606 (e.g., through heat exchangers 412 and 602) and cooling fluid 600 circulating through cooling circuit 614 (e.g., through heat exchanger 602 and cooling control system 550). Cooling control system 550 operates substantially as described above with reference to FIG. 16 . However, cooling control system 550 receives cooled fluid 552 and outputs cooling fluid 600 for use in cooling cooling fluid 448 via indirect heat exchange in heat exchanger 602. Otherwise, cooling supply system 410, including multi-fluid system 452, operates substantially as described above with reference to FIGS. 15 and 16 .
[0100] In the illustrated embodiment, multi-fluid system 486 of heating supply system 416 includes heating control system 570 having heating control components 576 as described above. Heating control system 570 is configured to receive heated fluid 572, such as steam 574, condition heated fluid 572, and deliver it to heat exchanger 622 as heating fluid 620. Heat exchanger 622 is configured to transfer heat (e.g., indirect heat transfer) between heating fluid 482 and heating fluid 620, wherein heating fluids 482 and 620 are isolated from one another. Heating fluid 482 circulates through heating circuit 460 of heat exchanger 418 and heating circuit 624 of heat exchanger 622, wherein heating circuits 460 and 624 collectively define a single closed-loop heating circuit 626 that extends through both heat exchangers 418 and 622. In certain embodiments, the heating circuit 624 of the heat exchanger 622 is removably or permanently coupled to the heating circuit 460 of the heat exchanger 416, the heat exchanger 622 being located outside the desorption unit 420, and the heat exchanger 418 being located inside the desorption unit 420.
[0101] Heat exchanger 622 has a body or housing 628 with a heating flow path 630 disposed along and around a heating circuit 624. For example, heating flow path 630 may include one or more flow paths, channels, or cavities within body or housing 628, with heating flow path 630 substantially surrounding heating circuit 624 within body or housing 628. Heating circuit 624 may include one or more coils, wound tubes, or any combination thereof separate from heating flow path 630. In certain embodiments, heating circuit 624 may include one or more conduits or tubes extending in a wound flow path, a coiled flow path, a spiral or helical flow path, a serpentine flow path, a serpentine flow path, or any combination thereof.
[0102] During operation, heating fluid 620 from heating supply system 416 flows through heating flow path 630 of heat exchanger 622, and heating fluid 620 is configured to regulate (e.g., raise or lower) the temperature of heating fluid 482 circulating through heating circuit 626. For example, heating fluid 620 can transfer heat to heating fluid 482 in heat exchanger 622, thereby heating heating fluid 482 to a temperature within a temperature range suitable for the desorption process. In some embodiments, heating fluid 620 can transfer heat from heating fluid 482 in heat exchanger 622, thereby cooling heating fluid 482 to a temperature within a temperature range suitable for the desorption process. Thus, heat exchanger 622 generally transfers heat between heating fluids 482 and 620 such that heating fluid 482 is thermally regulated to a temperature within a temperature range suitable for the desorption process. The direction of heat transfer may depend on the source and temperature of heated fluid 572, the temperature of the adsorbent in adsorption module 100, and other considerations.
[0103] After transferring heat between the heating fluids 482 and 620, the heat exchanger 622 discharges the thermally conditioned heating fluids 482 and 620. The heating fluid 482 discharged from the heat exchanger 622 flows through the heat exchanger 418 to heat the adsorbent in the adsorption module 100 to enable or improve the desorption process. The heating fluid 482 can then flow back through the heat exchanger 622 to complete the closed-loop heating circuit 626, where the heating fluid 482 then begins another pass through the closed-loop heating circuit 626. In the illustrated embodiment, the closed-loop heating circuit 626 includes one or more pumps 632 configured to pump the heating fluid 482 through the closed-loop heating circuit 626, which includes the heating circuits 460 and 624 of the heat exchangers 418 and 622. Alternatively, after heating fluid 620 exits through heat exchanger 622, heating fluid 620 may flow or recirculate to heating control system 570 and / or may flow along one or more flow paths to another location within gas turbine system 10. In some embodiments, heating fluid 620 may flow through a closed-loop heating circuit 634 having heating control system 570 and heat exchanger 622.
[0104] Thus, multi-fluid system 486 includes at least heating fluid 482 circulating through heating circuit 626 (e.g., through heat exchangers 418 and 622) and heating fluid 620 circulating through heating circuit 634 (e.g., through heat exchanger 622 and heating control system 570). Heating control system 570 operates substantially as described above with reference to FIG. 16 . However, heating control system 570 receives heated fluid 572 and outputs heated fluid 620 for use in heating heating fluid 482 via indirect heat exchange in heat exchanger 622. Otherwise, heating supply system 416, including multi-fluid system 486, operates substantially as described above with reference to FIGS. 15 and 16 .
[0105] The thermal or heat transfer fluids used for cooling fluids 448 and 600 and heating fluids 482 and 620 may include any suitable liquid and / or gas, and may be the same or different from one another. For example, cooling fluids 448 and 600 may include water, lubricant, oil, air, an inert gas (e.g., nitrogen), or any combination thereof. Cooling fluid 448 may be included in closed-loop cooling circuit 606, and cooling fluid 600 may or may not be disposed in closed-loop cooling circuit 614. As a further example, heating fluids 482 and 620 may include steam, heated water, heated gas, heated liquid, or any combination thereof. For example, heating fluid 620 may include steam 574, which may include steam 96 from HRSG 27, steam turbine 29, or boiler 95. Additionally, steam 96 may include low pressure (LP) steam, intermediate pressure (IP) steam, or high pressure (HP) steam depending on the point of extraction from one or more of the low pressure (LP), intermediate pressure (IP), and / or high pressure (HP) sections of HRSG 27 and / or steam turbine 29. Heating fluid 482 may include a gas or a liquid, such as water, oil, a lubricant, or a combination thereof.
[0106] During operation, controller 76 is coupled to sensors 86 and multi-fluid systems 452 and 486 of cooling supply system 410 and heating supply system 416, thereby helping to provide thermal control in adsorption unit 414 and desorption unit 420 of adsorption system 106. For example, controller 76 can monitor conditions upstream and downstream of adsorption module 100 in adsorption unit 414 and desorption unit 420 and then adjust pumps 612 and 632, components 556 of cooling control system 550, components 576 of heating control system 570, or any combination thereof, to provide appropriate temperatures for the thermal fluids (e.g., 448, 600, 482, and 620). As adsorption unit 414 adsorbs undesirable gases from flue gas 94 via adsorption module 100 with temperature control by cooling system 166 and heat exchange system 422, adsorption unit 414 produces treated gas 97. Additionally, a desorption unit 420 removes undesired gases from the adsorption module 100, and a heating system 168 and a heat exchange system 422 provide heat to enable or improve the desorption process to produce captured gas 520. Downstream equipment 522 then further processes the captured gas 520.
[0107] Figure 18 is a schematic diagram of one embodiment of the gas processing system 16 of Figures 1-17, further illustrating aspects of the heat exchange system 422 of Figures 15-17. The heat exchange system 422 includes a closed-loop heat transfer circuit 490 having a heat exchanger 424 (e.g., evaporator 504), a compressor 498, a heat exchanger 426 (e.g., condenser 506), and an expansion valve 500, as described in detail above. The heat exchange system 422 also includes a housing or body 492 having a housing portion 494 configured to mount within the adsorption unit 414 and a housing portion 496 configured to mount within the desorption unit 420. 18 , heat exchanger 424 includes heat exchange tubes 640, and heat exchanger 426 includes heat exchange tubes 642, which may extend along a wound path, a coiled path, a spiral or helical path, a serpentine path, a serpentine path, or any combination thereof. In adsorption unit 414, heat exchanger 424 receives heat from flue gas 94 to (or transfers heat into) working fluid 502 within heat exchange tubes 640, as indicated by arrows 644, thereby providing cooling for flue gas 94 and adsorption modules 100 within adsorption unit 414. The cooling helps enable or improve the adsorption process of undesired gases onto adsorption modules 100 within adsorption unit 414. In the desorption unit 420, the heat exchanger 426 outputs (or transfers) heat from (or out of) the working fluid 502 in the heat exchange tubes 642, as indicated by arrows 646, thereby providing heating for the adsorption module 100 in the desorption unit 420. The heating helps enable or improve the desorption process of undesired gases from the adsorption module 100 in the desorption unit 420.
[0108] In certain embodiments, the heat exchange system 422 may have heat exchangers 424 and 426, a compressor 498, and an expansion valve 500 arranged or configured as a heat pump cycle or a refrigeration cycle, such as a vapor compression cycle or a vapor absorption cycle, in a closed-loop heat transfer circuit 490. Thus, the working fluid 502 may include a refrigerant such as, for example, R-32, HFC-32, or difluoromethane (CHF); R-134a, HFC-134a, or 1,1,1,2-tetrafluoroethane (CFCHF); R-410a or pentafluoroethane (CFCHF); R-290 or propane (CH); R-600a or isobutane (HC(CH)); R-717 or ammonia (NH); R-744 or carbon dioxide (CO); R-1234yf, HFO-1234yf, or 2,3,3,3-tetrafluoropropene (CHF); or any combination thereof. However, the working fluid 502 may include any suitable refrigerant or thermal fluid.
[0109] Heat exchange system 422 may be configured and / or mounted in various ways within adsorption unit 414 and desorption unit 420. In some embodiments, heat exchangers 424 and 426 may be directly coupled to and / or integrated with movable adsorption assembly 108. However, in some embodiments, heat exchangers 424 and 426 may be mounted separately and / or remotely relative to movable adsorption assembly 108 within adsorption unit 414 and desorption unit 420. For example, heat exchangers 424 and 426 may be mounted directly at the same position on movable adsorption assembly 108, between consecutive positions on movable adsorption assembly 108, upstream from all of movable adsorption assemblies 108, or any combination thereof.
[0110] FIG. 19 is a flow chart of one embodiment of a gas processing process 650 for the gas processing system 16 of FIGS. 1-18. As shown, process 650 includes alternatingly moving a plurality of adsorption modules 100 between the adsorption unit 414 and the desorption unit 420, as indicated by block 652. For example, the adsorption modules 100 can move in alternating directions along a movement path between the duct 102 of the adsorption unit 414 and the duct 104 of the desorption unit 420. The movement path can be linear using the linear positioning assembly 132, as described above. In some embodiments, the movement path can be a non-linear movement path, such as a curved movement path, a polygonal movement path, a wavy movement path, or any combination thereof. Process 650 includes cooling the adsorption modules 100 in the adsorption unit 414 to a first temperature within a first temperature range, as indicated by block 654. Cooling may be provided by a cooling system 166 including a heat exchanger 412 coupled to a cooling supply system 410 and / or a heat exchanger 424 of a heat exchange system 422. The process 650 further includes adsorbing the undesired gas (e.g., CO) from the flue gas 94 in the adsorption module 100 in the adsorption unit 414, as represented by block 656. The first temperature within the first temperature range may be suitable to enable and / or improve adsorption of the undesired gas in the adsorbent of the adsorption module 100.
[0111] Process 650 includes heating the adsorption module 100 in the desorption unit 420 to a second temperature within a second temperature range, as represented by block 658. The heating may be provided by a heating system 168 including a heat exchanger 418 coupled to a heating supply system 416 and / or a heat exchanger 426 of a heat exchange system 422. Process 650 further includes desorbing the undesired gas (e.g., CO) from the adsorption module 100 in the desorption unit 420, as represented by block 660. The second temperature within the second temperature range may be suitable to enable and / or improve desorption of the undesired gas from the adsorbent of the adsorption module 100. Process 650 further includes outputting the treated gas 97 from the adsorption unit 414 and obtaining the captured gas 520 from the desorption unit 420.
[0112] 20 is a block diagram of an embodiment of a combined cycle power plant 700 having the gas turbine system 10 of FIG. 1 , further illustrating details of the adsorption system 106 and the thermal control system 101 of the gas processing system 16. The combined cycle power plant 700 has a gas turbine engine 12 configured to combust fuel to produce exhaust gas 94, which flows through the HRSG 27 to produce steam 96 for the steam turbine 29. The gas processing system 16 is configured to receive and use thermal fluids available to the combined cycle power plant 700 for cooled fluid 552 and heated fluid 572 for the thermal control system 101 of the adsorption system 106, thereby enabling and / or helping to improve the efficiency of the adsorption and desorption processes while improving the overall efficiency of the combined cycle power plant 700. For example, cooled fluid 552 may include water or other fluids obtained from combined cycle power plant 700 at one or more conditions (e.g., temperature, pressure, composition, etc.), where cooled fluid 552 is used by cooling system 166 to aid in the adsorption process in adsorption module 100. As a further example, heated fluid 572 may include steam 96 and / or heated water from HRSG 27 and / or steam turbine 29 at one or more conditions (e.g., temperature, pressure, steam / water content, etc.), where heated fluid 572 is used by heating system 168 to aid in the desorption process in adsorption module 100. As mentioned above, while adsorption system 106 may be well suited for removing and capturing CO2, undesirable gases may also include carbon oxides (CO), such as carbon dioxide (CO2) and carbon monoxide (CO). X ), nitrogen oxides such as nitrogen dioxide (NO2) X ), sulfur dioxide (SO2) and other sulfur oxides (SO X ), or any combination thereof.
[0113] In the illustrated embodiment, the gas turbine engine 12 may be drivingly coupled to a load 26, such as a generator. Similarly, the steam turbine 29 is drivingly coupled to a load 702, such as a generator. In this manner, the gas turbine engine 12 and the steam turbine 29 drive the loads 26 and 702 (e.g., generators) to generate electricity for the combined cycle power plant 700 and a power grid. The HRSG 27 may include multiple sections 704, such as a low-pressure (LP) section 706, an intermediate-pressure (IP) section 708, and a high-pressure (HP) section 710, configured to generate steam 96 as low-pressure (LP) steam, intermediate-pressure (IP) steam, and high-pressure (HP) steam, respectively. The HRSG 27 transfers heat from the exhaust gas 94 to water and / or steam to generate LP steam, IP steam, and HP steam. In certain embodiments, the steam turbine 29 includes multiple steam turbine sections, such as a low-pressure (LP) steam turbine section, an intermediate-pressure (IP) steam turbine section, and a high-pressure (HP) steam turbine section, which are driven by LP steam, IP steam, and HP steam, respectively. Additionally, the adsorption system 106 of the gas processing system 16 may receive and use steam 96 as the heated fluid 572, which may include one or more of the LP steam, IP steam, and HP steam and / or heated water from the HRSG 27 and / or the steam turbine 29. After generating the steam 96, the HRSG 27 passes the exhaust gas 94 to an exhaust stack 712 (e.g., a vertical exhaust stack or duct).
[0114] In the illustrated embodiment, the adsorption system 106 and the thermal control system 101 may be coupled to the exhaust stack 712, and the adsorption system 106 and the thermal control system 101 may be at least partially or substantially disposed within the exhaust stack 712. For example, the exhaust stack 712 may include a duct 102 for the adsorption unit 414 such that the adsorption unit 414 is aligned with the exhaust stack 712. As a further example, the duct 104 for the desorbing unit 420 may extend along (e.g., parallel to) the exhaust stack 712, such that the desorbing unit 420 is adjacent to the desorbing unit 414, allowing for back-and-forth movement of the adsorption module 100 between the exhaust stack 712 (e.g., duct 102) and the duct 104, as described in detail above. In particular, each movable adsorption assembly 108 has one of the adsorption modules 100 configured to move in alternating directions between ducts 102 and 104, with the adsorption modules 100 adsorbing undesired gases in duct 102 and desorbing undesired gases in duct 104. The adsorption unit 414 outputs treated gas 97 downstream from the plurality of movable adsorption assemblies 108, and the desorption unit 420 outputs captured gas 520 downstream from the plurality of movable adsorption assemblies 108. In the illustrated embodiment, the ducts 102 and 104 are generally oriented vertically relative to the exhaust stack 712, while the alternating direction of movement of the adsorption modules 100 is generally horizontal. The adsorption system 106 delivers the captured gas 520 to downstream equipment 522, as described in further detail below.
[0115] Thermal control system 101 is configured to provide temperature control to adsorption unit 414 and desorption unit 420, and includes cooling system 166 and heating system 168. Cooling system 166 includes cooling supply system 410 coupled to heat exchanger 412 and at least a portion of heat exchange system 422 (e.g., heat exchanger 424). Heating system 168 includes heat exchanger 418 and heating supply system 416 coupled to at least a portion of heat exchange system 422 (e.g., heat exchanger 426). In the illustrated embodiment, adsorption system 106 includes two of the movable adsorption assemblies 108 coupled to exhaust stack 712. However, adsorption system 106 may include any number of movable adsorption assemblies 108 (e.g., 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or more) coupled to exhaust stack 712.
[0116] In the illustrated embodiment, the downstream equipment 522 includes a vacuum system 526, a dehydration system 528, a compression system 530, and a storage and / or pipeline system 532. The vacuum system 526 is configured to generate a vacuum to draw undesired gases from the desorption unit 420 and the adsorption module 100 via one or more vacuum components 714. In certain embodiments, the vacuum component 714 may include a vacuum 716, such as a pump, fan, compressor, or combination thereof, which may be driven by an electric motor or other drive device. The vacuum component 714 may also include a vacuum control 718, such as a vacuum pressure control, a vacuum speed control, a vacuum flow rate control, or combination thereof, configured to adjust the vacuum 716 to provide adequate suction to extract the undesired gases. The vacuum component 714 may also include one or more filters 720, such as a particulate filter. The vacuum system 526 receives the captured gases 520, as indicated by arrow 722, and outputs the captured gases 520 to the dehydration system 528, as indicated by arrow 724.
[0117] Dehydration system 528 is configured to dehydrate, or generally remove moisture, from captured gas 520 via one or more dehydration components 726. For example, dehydration component 726 may include a heat exchanger 728, a separator 730, and a water collector 732. Heat exchanger 728 may be configured to cool captured gas 520, thereby causing condensation of any moisture within captured gas 520. Separator 730 may include a water-gas separator configured to separate condensed water from captured gas 520. In certain embodiments, separator 730 may include a gravity separator, a centrifuge, or any other type of separation unit, or any combination thereof. Water collector 732 may be configured to collect the condensed and separated water and return the water to water supply system 734 for subsequent use in combined cycle power plant 700. In some embodiments, water collector 732 may include a drainage system, a water tank, a water pump, a water filter, or any combination thereof. As will be appreciated, dehydration system 528 may include one or more types of dehydration components 726. After performing various dehydration processes, dehydration system 528 outputs trapped gas 520 as dry trapped gas 736 for subsequent compression in compression system 530.
[0118] Compression system 530 may include multiple compressor components 738, such as compressor 740, compressor 742, and a cooling heat exchanger or intercooler 744. For example, compressor 740 may be configured to compress dry capture gas 736 in a first compression stage, intercooler 744 may be configured to cool dry capture gas 736 after the first compression stage by compressor 740, and compressor 742 may be configured to compress dry capture gas 736 in a second compression stage after cooling by intercooler 744. In certain embodiments, compression system 530 may be a single-stage compressor, or compression component 180 may include three, four, five, or more compressors and associated intercoolers. Compression system 530 then outputs compressed capture gas 746 to storage and / or pipeline system 532. Thus, the compressed captured gas 746 may be used for a variety of purposes, either locally within the combined cycle power plant 700 or remotely via the storage and / or pipeline system 532 .
[0119] The feedwater system 734 may receive fresh water, condensate, or other plant water from various sources throughout the combined cycle power plant 700. For example, the feedwater system 734 may receive water from the dehydration system 528, as indicated by arrow 748 (e.g., a water conduit), from the compression system 530, as indicated by arrow 750 (e.g., a water conduit), and from the gas processing system 16 (e.g., a water conduit from the cooling system 166 and / or the heating system 168). The feedwater system 734 may also supply water to various equipment throughout the combined cycle power plant 700. For example, the feedwater system 734 may supply water to the HRSG 27 for steam generation of the steam 96, as indicated by arrow 752 (e.g., via a water conduit), and to the gas processing system 16 for use in various cooling processes within the adsorption system 106. For example, the water supply system 734 may supply cooled fluid 552 (e.g., water 554) to the cooling system 166 (e.g., cooling supply system 410) as indicated by arrow 754 (e.g., via a water conduit).
[0120] Given the various sources and uses of water, water supply system 734 may include multiple water components 756, such as water storage 758, a thermal control system 760, and a water treatment system 762. Water storage 758 may include a water storage vessel, a water tower, a water supply conduit, a water tank or reservoir, or any combination thereof. Thermal control system 760 may include a heat exchanger and / or a cooling system that may be configured to control the temperature of the water depending on the desired use throughout combined cycle power plant 700. For example, thermal control system 760 may include a cooling tower, an indirect heat exchanger that uses another thermal fluid to provide cooling, one or more fans, a refrigeration system, a heating system that uses heat from various sources within combined cycle power plant 700, or any combination thereof. Water treatment system 762 may include one or more of a filtration system, a chemical treatment system, an impurity removal system, an ultraviolet treatment system, or any combination thereof. Thus, the water supply system 734 may supply thermally controlled, treated water to various locations throughout the combined cycle power plant 700, including, but not limited to, the HRSG 27 and the gas processing system 16 (e.g., the cooling supply system 410 of the adsorption system 106). In the illustrated embodiment, the water treatment system 762 is shared among various components, equipment, or subsystems of the combined cycle power plant 700.
[0121] During operation, the controller 76 is configured to control the thermal control system 101 and the adsorption system 106 of the gas processing system 16 to enable or improve the efficiency of the adsorption process in the adsorption unit 414 and the desorption process in the desorption unit 420. The temperature within the adsorption unit 414 affects the adsorption process, and therefore the controller 76 helps control the temperature within the adsorption unit 414 based at least in part on the cooled fluid 552 extracted from the combined cycle power plant 700. For example, the controller 76 may selectively control the extraction point (e.g., specific equipment such as the HRSG 27, the steam turbine 29, the dehydration system 528, and / or the compression system 530), the blending of multiple extractions, further heat exchange (e.g., conditioning by heating or cooling), or other parameters of the cooled fluid 552 so that the cooling supply system 410 of the cooling system 166 receives the cooled fluid 552 at a temperature within a temperature range suitable for the adsorption process.
[0122] Similarly, the temperature within the desorbing unit 420 affects the desorption process, and thus the controller 76 helps control the temperature within the desorbing unit 420 based at least in part on the heated fluid 572 extracted from the combined cycle power plant 700. For example, the controller 76 can selectively control the extraction points (e.g., specific equipment such as the HRSG 27, steam turbine 29, and boiler 95), the blending of multiple extractions, further heat exchange (e.g., conditioning by heating or cooling), or other parameters of the heated fluid 572 so that the heating supply system 416 of the heating system 168 receives the heated fluid 572 at a temperature within a temperature range suitable for the desorption process. As a further example, the controller 76 may selectively control the extraction points of the heated fluid 572 from different sections 704 of the HRSG 27 (e.g., the LP section 706, the IP section 708, and / or the HP section 710) and / or different sections of the steam turbine 29 (e.g., the LP turbine, the IP turbine, and / or the HP turbine), thereby providing LP steam, IP steam, and / or HP steam as the heated fluid 572 for the heating system 168. Overall, the controller 76 helps to control the temperatures within the adsorption unit 414 and the desorption unit 420, the movement of the adsorption module 100 between the adsorption unit 414 and the desorption unit 420, downstream equipment 522 for controlling post-treatment of the captured gas 520, and various equipment of the combined cycle power plant 700 that helps support the adsorption system 106 of the gas processing system 16.
[0123] Technical effects of the disclosed embodiments include a gas processing system having adsorption modules moving in alternating directions between flow paths in first and second ducts, where the adsorption modules adsorb undesirable gases in the first duct and desorb undesirable gases in the second duct. The first and second ducts may be positioned directly adjacent to each other and may share an intermediate wall. The adsorption modules may be configured to move in alternating directions along one or more rail assemblies of a positioning system. The first duct may also be described as an adsorption duct, adsorption unit, or adsorption column, and the second duct may also be described as a desorption duct, desorption unit, or desorption column. When multiple adsorption modules are installed in the ducts, a controller can control the movement and positioning of the adsorption modules such that one or more adsorption modules adsorb undesirable gases in the first duct and one or more adsorption modules desorb undesirable gases in the second duct. Additionally, a thermal control system is coupled to the gas processing system to control temperatures associated with adsorption and desorption in each of the first and second ducts. The thermal control system may include one or more heat exchangers disposed within each duct, which may transfer heat between each other (e.g., a closed-loop heat pump cycle or a refrigeration cycle) and / or with an external cooling supply system. The heat exchangers may be disposed upstream of the adsorption modules, directly and / or coupled to the adsorption modules, and / or between successive adsorption modules. The thermal control system enables temperature control such that the temperatures are within ranges suitable for adsorption and desorption in each of the first and second ducts.
[0124] The subject matter detailed above may be governed by one or more of the provisions set forth below. [Embodiment 1] The system includes a gas processing system having an adsorption module, the adsorption module containing an adsorbent. The gas processing system further includes a positioning assembly configured to move the adsorption module in alternating directions along a movement path between a first position in the first flow path and a second position in the second flow path. The gas processing system is configured to adsorb undesired gases into the adsorbent from a first fluid stream in the first flow path when the adsorption module is disposed in the first position. The gas processing system is configured to desorb undesired gases from the adsorbent when the adsorption module is disposed in the second position. The gas processing system also includes a thermal control system having a first heat exchanger disposed in the first flow path and a second heat exchanger disposed in the second flow path. [Embodiment 2] The system of the preceding clause, including a heat transfer circuit extending through the first and second heat exchangers. [Embodiment 3] The system of any preceding clause, wherein the thermal control system includes a heat pump cycle or a refrigeration cycle having a first heat exchanger, a compressor, a second heat exchanger, and an expansion valve arranged along a heat transfer circuit in a closed loop. [Embodiment 3] The system of any preceding clause, including a movable adsorption assembly having an adsorption module disposed within a housing, and the thermal control system having first and second heat exchangers coupled to the housing along first and second flow paths. [Embodiment 4] The system of any preceding clause, wherein the first heat exchanger is disposed along the first heat transfer circuit and the second heat exchanger is disposed along the second heat transfer circuit, and the first and second heat transfer circuits are separate from one another. [Embodiment 5] The system of any preceding clause, including a cooling supply system coupled to the first heat transfer circuit and a heating supply system coupled to the second heat transfer circuit. [Embodiment 6] The system of any preceding clause, wherein the cooling supply system is configured to receive a cooled fluid and circulate the cooled fluid as a cooling fluid through a first heat transfer circuit, or the heating supply system is configured to receive a heated fluid and circulate the heated fluid as a heating fluid through a second heat transfer circuit, or a combination thereof. [Embodiment 7] The system of any preceding clause, wherein the cooling supply system is configured to transfer heat between the first cooling fluid and the second cooling fluid in the third heat exchanger and the cooling supply system is configured to circulate the first cooling fluid through a first heat transfer circuit, or the heating supply system is configured to transfer heat between the first heating fluid and the second heating fluid in the fourth heat exchanger and the heating supply system is configured to circulate the first heating fluid through a second heat transfer circuit, or a combination thereof. [Embodiment 8] The system of any preceding clause, wherein the heating supply system includes a steam source configured to circulate a steam flow. [Embodiment 9] The system of any preceding clause wherein the steam source includes a heat recovery steam generator (HRSG), a steam turbine, or a combination thereof. [Embodiment 10] The system of any preceding clause wherein the cooling supply system includes a water source configured to circulate a flow of water. [Embodiment 11] The system of any preceding clause, including a combustion system having a first flow path coupled to the gas processing system, the first flow path including an exhaust flow path. [Embodiment 12] The system of any preceding clause, including an exhaust stack having a first flow path, the second flow path extending along the first flow path, and the combustion system including a gas turbine system. [Embodiment 13] The system of any preceding clause wherein the undesirable gas comprises carbon dioxide (CO2). [Embodiment 14] The system of any preceding clause, including a controller coupled to the thermal control system, a driver, and one or more sensors, wherein the controller is configured to control the driver to move the adsorption module in alternating directions between the first position and the second position when feedback from the one or more sensors indicates that adsorption meets an adsorption threshold in the first flow path or desorption meets a desorption threshold in the second flow path, and the controller is configured to control the thermal control system to control a first temperature in the first flow path and a second temperature in the second flow path. [Embodiment 15] The system of any preceding clause, wherein the gas processing system includes a plurality of adsorption modules and a respective plurality of positioning assemblies, the plurality of adsorption modules including adsorption modules and the plurality of positioning assemblies including positioning assemblies. [Embodiment 16] The system includes a first duct having a first flow path, a second duct having a second flow path, and a plurality of adsorption modules, each adsorption module of the plurality of adsorption modules containing an adsorbent. The system further includes a plurality of positioning assemblies, each positioning assembly of the plurality of positioning assemblies configured to independently move one of the plurality of adsorption modules in alternating directions between the first duct and the second duct. The system also includes a thermal control system having a first heat exchanger disposed in the first flow path and a second heat exchanger disposed in the second flow path. [Embodiment 17] The system of the preceding clause, including a heat transfer circuit extending through the first and second heat exchangers. [Embodiment 18] The system of any preceding clause, wherein the first heat exchanger is disposed along the first heat transfer circuit and the second heat exchanger is disposed along the second heat transfer circuit, and the first and second heat transfer circuits are separate from one another. [Embodiment 19] The method includes moving an adsorption module of a gas processing system in alternating directions along a movement path between a first position in a first flow path and a second position in a second flow path via a positioning assembly, the adsorption module including an adsorbent. The method includes adsorbing undesirable gases in the adsorbent of the adsorption module when the adsorption module is disposed at the first position in the first flow path. The method includes controlling a first temperature in the first flow path via a first heat exchanger of a thermal control system, the first heat exchanger being disposed in the first flow path. The method includes desorbing undesirable gases from the adsorbent of the adsorption module when the adsorption module is disposed at a second position in the second flow path. The method includes controlling a second temperature in the second flow path via a second heat exchanger of the thermal control system, the second heat exchanger being disposed in the second flow path.
[0125] This specification uses examples to describe the present embodiments, including the best mode, and also enables any person skilled in the art to practice the presently disclosed embodiments, including making and using any device or system, and performing any incorporated methods. The patentable scope of the presently disclosed embodiments is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements that differ insubstantial amounts from the literal language of the claims. [Explanation of symbols]
[0126] 10 Gas Turbine System 12 Gas turbine engine 14 Control System 15 Fluid 16 Gas Treatment System 17 Fluid Supply System 18 Intake Section 20 Compressor Section 22 Combustor Section 24 Turbine Section 26 Load 27 Heat Recovery Steam Generator (HRSG) 28 Exhaust Section 29 Steam turbine 30 Inlet duct 31 Cooler 32 Bellmouth 34 inner hub 36 Exterior Wall 38 Fixed vane 40 Inlet guide vane (IGV) 42 Actuator 44 Compressor Stage 46 Compressor blade 48 Compressor shaft 50 Compressor casing 52 Compressor vane 54 Combustor 56 Fuel nozzle 58 Compressed Air 60 fuel 62 Fuel supply system 64 Hot combustion gases 66 Turbine Stage 68 Turbine Blade 70 Turbine shaft 72 Turbine casing 74 Turbine vane 76 Controller 78 processors 80 memory 82 command 84 Communication Circuit 86 Sensors 88 Arrow 90 shaft 92 Shaft 94 Exhaust Gas 95 Boiler 96 Steam 97 Treated Gas 98 Fluid 99 Downstream equipment 100 Adsorption Module 101 Thermal Control System 102 Duct 104 Duct 106 Adsorption System 108 Movable suction assembly 110 Flow path 112 Entrance 114 Exit 116 Side wall 118 Channel 120 Entrance 122 Exit 124 Side wall 126 Intermediate Wall 128 Fluid Flow 130 Fluid Flow 132 Straight Positioning Assembly 134 Rail Assembly 136 Drive Unit 138 Drive Line 140 Rail 142 slides 144 Opening 146 Bushing or Seal 148 Opening 150 stickers 152 perimeter 154 Treated Fluid Streams 156 Cooled Fluid Flow 158 Cooler 160 Heater 162 Access Panel 164 Access Opening 166 Cooling System 168 Heating System 170 Temperature Control System 172 Heat exchanger 174 Heat exchanger 176 Fluid circuit 178 Coil or winding tube 180 Coil or winding tube 182 Fluid flow 184 Fluid flow 190 Direct Heat Exchange System 192 Fluid supply source 194 Distribution manifold 196 Fluid conduit 198 Fluid Pump 200 Fluid Control Valve 202 Fluid Nozzle 204 Spraying 210 Adsorbent Cartridge 212 Framework 214 Side wall 216 Side wall 218 Side wall 220 Side wall 222 Adsorbents 224 screens 226 Upstream 228 Downstream 230 Side 232 Side 234 Side 236 Side 240 lines 242 lines 244 lines 246 columns 248 columns 250 cartridge opening 260 Side 262 Side 264 Linear direction 270 C-shaped cross section 272 Upper Wall 274 Lower Wall 276 Side wall 278 flat plate 280 radial inner lip 282 flat plate 284 Radial Inner Lip 286 Internal Channels 288 Flat plate 290 wheels 292 Shaft 294 Mount 296 Bearing 298 Welded Joints 310 Seal Frame or Edge 312 Flexible sealing material 314 Fiber 316 Brush seal 320 Edge Wall 322 Side wall 324 Common-law marriage 326 Side 328 C-shaped structure 340 Fasteners 342 Edge or flange 350 threaded shaft 352 Shaft opening 354 Threaded Nut 356 Arrow 358 Arrow 360 Rail Extension 370 Seal or Gasket 372 Intermediate washer 380 Process 382 blocks 384 blocks 386 blocks 388 blocks 390 blocks 392 blocks 394 blocks 396 blocks 398 blocks 400 Block 410 Cooling Supply System 412 Heat exchanger 414 Adsorption unit 416 Heating Supply System 418 Heat exchanger 420 Detachable Unit 422 Heat Exchange System 424 Heat Exchanger 426 Heat Exchanger 428 Cooling circuit 430 Housing or Body 432 Manifold 434 Entrance 436 Exit 438 U-shaped structure 440 Module Receptacle or Chamber 442 Side 444 Side 446 Side 448 Cooling fluid 450 Single heat exchange or single fluid system 452 Multiple Heat Exchange or Multiple Fluid Systems 460 heating circuit 462 Housing or Body 464 Manifold 468 Entrance 470 Exit 472 U-shaped structure 474 Side 476 Side 478 Side 480 Module Receptacle or Chamber 482 Heating fluid 484 Single Heat Exchanger or Single Fluid System 486 Multiple Heat Exchange or Multiple Fluid Systems 490 Closed Loop Heat Transfer Circuit 492 Housing or Body 494 Housing part 496 Housing part 498 Compressor 500 Expansion Valve 502 Working fluid 504 Evaporator 506 Condenser 508 Greenhouse Gases 510 Hot Gas 512 Warm liquid 514 Cryogenic Liquid 520 Trapped Gas 522 Downstream equipment 524 Downstream Components 526 Vacuum System 528 Dehydration System 530 Compression System 532 Storage and / or Pipelines 550 Cooling Control System 552 Cooled Fluid 554 water 556 Cooling Control Components 558 Cooling Control Components 560 Cooling Control Components 562 Cooling Control Components 570 Heating Control System 572 Heated Fluid 574 Steam 576 Heating Control Components 578 Heating Control Components 580 Heating Control Components 582 Heating Control Components 600 Cooling fluid 602 Heat exchanger 604 Cooling circuit 606 Closed Loop Cooling Circuit 608 Body or housing 610 Cooling Channel 612 Pump 614 Closed Loop Cooling Circuit 620 Heating Fluid 622 Heat exchanger 624 Heating circuit 626 Closed Loop Heating Circuit 628 Body or Housing 630 Heating Channel 632 Pump 634 Closed Loop Heating Circuit 640 Heat Exchange Tube 642 Heat Exchange Tube 644 Arrow 646 Arrow 650 Gas Treatment Process 652 blocks 654 blocks 656 blocks 658 blocks 660 blocks 662 blocks 700 Combined Cycle Power Plant 702 Load 704 Section 706 Low Pressure (LP) Section 708 Medium Pressure (IP) Section 710 High Pressure (HP) Section 712 exhaust stack 714 Vacuum Components 716 Vacuum 718 Vacuum Control 720 Filter 722 Arrow 724 Arrow 726 Dehydration Components 728 Heat Exchanger 730 Separator 732 Water Collector 734 Water Supply System 736 Dry Trapped Gas 738 Compressor Components 740 Compressor 742 Compressor 744 Intercooler 746 Compressed trapped gas 748 Arrow 750 arrows 752 Arrow 754 Arrow 756 Water Components 758 Water storage 760 Thermal Control System 762 Water Treatment Systems
Claims
1. A gas processing system (16) comprising: an adsorption module (100) having an adsorbent (222); a positioning assembly (132) configured to move the adsorption module (100) in alternating directions along a path of movement between a first position in a first flow path (110) and a second position in a second flow path (118), wherein the gas processing system (16) is configured to adsorb undesired gases from a first fluid stream (128) in the first flow path (110) into the adsorbent (222) when the adsorption module (100) is disposed at the first position, and the gas processing system (16) is configured to desorb the undesired gases from the adsorbent (222) when the adsorption module (100) is disposed at the second position; and a thermal control system (101) having a first heat exchanger (412) disposed in the first flow path (110) and a second heat exchanger (418) disposed in the second flow path (118); A gas processing system (16) comprising: A system (10) comprising:
2. The system (10) of any preceding claim, comprising a heat transfer circuit (490) extending through the first heat exchanger (412) and the second heat exchanger (418).
3. 3. The system (10) of claim 2, wherein the thermal control system (101) comprises a heat pump cycle or a refrigeration cycle having the first heat exchanger (412), a compressor (498), the second heat exchanger (418), and an expansion valve (500) arranged along the heat transfer circuit (490) in a closed loop.
4. 3. The system (10) of claim 2, comprising a movable adsorption assembly (108) having the adsorption module (100) disposed within a housing (492), and the thermal control system (101) having the first heat exchanger (412) and the second heat exchanger (418) coupled to the housing (492) along the first flow path (110) and the second flow path (118).
5. 2. The system of claim 1, wherein the first heat exchanger is disposed along a first heat transfer circuit and the second heat exchanger is disposed along a second heat transfer circuit, the first heat transfer circuit and the second heat transfer circuit being separate from one another.
6. 6. The system (10) of claim 5, comprising a cooling supply system (410) coupled to the first heat transfer circuit (428) and a heating supply system (416) coupled to the second heat transfer circuit (460).
7. 7. The system of claim 6, wherein the cooling supply system is configured to receive a cooled fluid and circulate the cooled fluid as a cooling fluid through the first heat transfer circuit, or the heating supply system is configured to receive a heated fluid and circulate the heated fluid as a heating fluid through the second heat transfer circuit, or a combination thereof.
8. the cooling supply system (410) is configured to transfer heat between a first cooling fluid (448) and a second cooling fluid (600) in a third heat exchanger (424), the cooling supply system (410) being configured to circulate the first cooling fluid (448) through the first heat transfer circuit (428); or the heating supply system (416) is configured to transfer heat between a first heating fluid (482) and a second heating fluid (620) in a fourth heat exchanger (426), and the heating supply system (416) is configured to circulate the first heating fluid (482) through the second heat transfer circuit (460); or It is a combination of these, The system (10) of claim 6.
9. The system (10) of claim 5, wherein the heat supply system (416) comprises a steam source configured to circulate a steam flow.
10. The system (10) of claim 9, wherein the steam source comprises a heat recovery steam generator (HRSG), a steam turbine, or a combination thereof.
11. The system (10) of claim 5, wherein the cooling supply system (410) comprises a water source configured to circulate a flow of water.
12. The system (10) of claim 1, comprising a combustion system (22) having the first flow path (110) coupled to the gas processing system (16), the first flow path (110) comprising an exhaust flow path.
13. 13. The system of claim 12, comprising an exhaust stack having the first flow path, the second flow path extending along the first flow path, and the combustion system comprising a gas turbine system.
14. The undesirable gas is carbon dioxide (CO 2 10. The system (10) of claim 1, comprising:
15. 2. The system of claim 1, comprising: a controller coupled to the thermal control system; a driver; and one or more sensors, wherein the controller is configured to control the driver to move the adsorption module in the alternating directions between the first position and the second position when feedback from the one or more sensors indicates that adsorption meets an adsorption threshold in the first flow path or desorption meets a desorption threshold in the second flow path, and the controller is configured to control the thermal control system to control a first temperature in the first flow path and a second temperature in the second flow path.
16. 2. The system (10) of claim 1, wherein the gas processing system (16) comprises a plurality of adsorption modules (100) and a respective plurality of positioning assemblies (132), the plurality of adsorption modules (100) including the adsorption modules (100) and the plurality of positioning assemblies (132) including the positioning assemblies (132).
17. a first duct (102) having a first flow path (110); a second duct (104) having a second flow path (118); a plurality of adsorption modules (100), each of the plurality of adsorption modules (100) comprising an adsorbent (222); a plurality of positioning assemblies (132), each of which is configured to independently move one of the plurality of adsorption modules (100) between the first duct (102) and the second duct (104) in alternating directions; a thermal control system (101) having a first heat exchanger (412) disposed in the first flow path (110) and a second heat exchanger (418) disposed in the second flow path (118); A system (10) comprising:
18. The system (10) of claim 17, comprising a heat transfer circuit (490) extending through the first heat exchanger (412) and the second heat exchanger (418).
19. 18. The system (10) of claim 17, wherein the first heat exchanger (412) is disposed along a first heat transfer circuit (428) and the second heat exchanger (418) is disposed along a second heat transfer circuit (460), and the first heat transfer circuit (428) and the second heat transfer circuit (460) are separated from one another.
20. moving an adsorption module (100) of a gas processing system (16) via a positioning assembly (132) in alternating directions along a path of movement between a first position in a first flow path (110) and a second position in a second flow path (118), the adsorption module (100) comprising an adsorbent (222); adsorbing undesired gases in the adsorbent (222) of the adsorption module (100) when the adsorption module (100) is disposed at the first position in the first flow path (110); controlling a first temperature in the first flow path (110) via a first heat exchanger (412) of a thermal control system (101), the first heat exchanger (412) being disposed in the first flow path (110); desorbing the undesired gas from the adsorbent (222) of the adsorption module (100) when the adsorption module (100) is disposed at the second position within the second flow path (118); and controlling a second temperature in the second flow path (118) via a second heat exchanger (418) of the thermal control system (101), the second heat exchanger (418) being disposed in the second flow path (118); A method comprising:
Citation Information
Patent Citations
System and method for continuous gas adsorbate capture using adsorption / regeneration cycle
WO2021258219A1