Systems and methods for gas processing with movable adsorption modules - Patents.com

Abstract

A gas processing system having an adsorption module is provided. The system includes a gas processing system having a sorption module, the sorption module including one or more sorbent cartridges having a sorbent. The gas processing system further includes a linear positioning assembly configured to move the sorption module along a linear movement path between a first position in a first flow path and a second position in a second flow path. The gas processing system is configured to sorb undesirable gases from a first fluid stream in the first flow path onto the sorbent when the sorption module is disposed in the first position, and to desorb undesirable gases from the sorbent when the sorption module is disposed in the second position.

Description

[Background technology]

[0001] TECHNICAL FIELD This application relates generally to systems and methods for treating gases, such as gas fuels and exhaust gases. [Technical field]

[0002] Industrial plants, such as power plants, may consume or produce a variety of gases, such as fuel gases (e.g., natural gas or synthetic gas) 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 include hydrogen sulfide (H 2 S), carbon dioxide (CO 2 ), nitrogen dioxide (NO 2 ) and / or sulfur dioxide (SO 2 ), and other sulfur oxides. Thus, it may be desirable to process certain gases to remove undesirable gases from the gas stream, such as by removing undesirable gases from the fuel gas upstream of a combustion system and / or removing undesirable gases from the exhaust gas emitted by the combustion system. The gas processing system may include a solvent-based absorption system configured to absorb the undesirable gases into a solvent, which then flows through a solvent regeneration system to remove the undesirable gases. However, the solvent-based absorption system generally includes various equipment external to the duct carrying the gas stream (e.g., a fuel supply duct or an exhaust duct), and thus may increase the cost, complexity, and footprint of the solvent-based absorption system. Thus, there is a need for a gas processing system that can operate continuously without relying on a solvent-based absorption system. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] US Patent Application Publication No. 2020 / 0376426 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, but rather, these embodiments are intended only to provide a brief summary of possible forms of the subject matter. Indeed, the presently claimed embodiments may encompass a variety of forms that may be similar to or different from the embodiments set forth below.

[0005] In certain embodiments, the system includes a gas processing system having a sorption module, the sorption module including one or more sorbent cartridges having a sorbent. The gas processing system further includes a linear positioning assembly configured to move the sorption module along a linear 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 sorb undesirable gases from a first fluid stream in the first flow path onto the sorbent when the sorption module is disposed at the first position. The gas processing system is configured to desorb undesirable gases from the sorbent when the sorption module is disposed at the second position.

[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 of the plurality of adsorption modules including one or more sorbent cartridges having a sorbent. The system further includes a plurality of linear positioning assemblies, each linear positioning assembly of the plurality of linear positioning assemblies configured to independently move one of the plurality of adsorption modules between the first duct and the second duct.

[0007] In certain embodiments, the method includes moving a sorption module of the gas processing system along a linear path of travel between a first position in a first flow path and a second position in a second flow path via a linear positioning assembly, the sorption module including one or more sorbent cartridges having a sorbent. The method further includes adsorbing the undesirable gas onto the sorbent of the sorption module when the sorption module is disposed at the first position in the first flow path. The method further includes desorbing the undesirable gas from the sorbent of the sorption module when the sorption module is disposed at the second position in the second flow path. [Brief description of the drawings]

[0008] These and other features, aspects, and advantages of the presently disclosed technology will become better understood from the following detailed description when read in conjunction with the accompanying drawings. [Figure 1] 1 is a schematic diagram of an embodiment of a gas turbine system having a gas processing system having one or more adsorption modules configured to remove undesirable gases. [Diagram 2] FIG. 2 is a schematic diagram of an embodiment of the gas processing system of FIG. 1, further illustrating 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. [Diagram 3] FIG. 3 is a schematic diagram of one 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] FIG. 3 is a schematic diagram of an embodiment of a direct heat exchange system having a fluid distribution manifold having a plurality of nozzles configured to inject fluid for direct heat transfer in the gas processing system of FIGS. 1 and 2. [Diagram 5]FIG. 3 is a perspective view of one embodiment of the sorption module of FIGS. 1 and 2, further illustrating a sorbent cartridge disposed within the frame of the sorption module. [Figure 6] FIG. 3 is a perspective view of the embodiment of the adsorption module of FIGS. 1 and 2, further showing a plurality of sorbent cartridges disposed in respective cartridge openings of the framework of the adsorption module, each of the plurality of sorbent cartridges being independently removable for maintenance and replacement. [Figure 7] 3 is a partial schematic diagram of the embodiment of the moveable suction assembly of FIG. 2 further illustrating details of a linear positioning assembly having a slide disposed within the rails of each rail assembly. [Figure 8] FIG. 2 is a partial cross-sectional view of one embodiment of a rail assembly coupled to a suction module, further illustrating details of one of the slides disposed on each rail. [Figure 9] 3 is a schematic diagram of the embodiment of the movable adsorption assembly of FIG. 2, further showing details of a seal disposed in an opening in the intermediate wall between the first duct and the second duct; [Figure 10] 10 is a partial cross-sectional view of an embodiment of a movable adsorption assembly taken along line 10-10 of FIG. 9, further illustrating seal details with brush seal fibers positioned against an adsorption module. [Figure 11] 3 is a schematic diagram of the embodiment of the movable adsorption assembly of FIG. 2, further showing details of an access panel disposed over the access opening of the first duct to allow insertion and removal of the adsorption module. [Figure 12] 3 is a partial perspective view of the embodiment of the gas processing system of FIG. 2 further illustrating details of the adsorption module partially removed from the first duct through the access opening; FIG. [Figure 13] FIG. 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. [Figure 14]1 is a flow chart of one embodiment of a process for treating a gas via a movable adsorption assembly having an adsorption module that moves between a first duct and a second duct to perform adsorption and desorption, respectively. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] One or more specific embodiments of the presently disclosed system are described below. In order to provide a concise description of these embodiments, all features of an actual implementation may not be described in the specification. It should be understood that in the development of such an actual implementation, as with any engineering or design project, numerous implementation-specific decisions must be made that vary from implementation to implementation in order to achieve the developer's particular goals, such as compliance with system-related and business-related constraints. Moreover, it should be understood that such a development effort may be complex and time-consuming, but is nevertheless a routine undertaking of design, fabrication, and manufacture for those of ordinary skill in the art having the benefit of this disclosure.

[0010] When introducing elements of various 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.

[0011] Disclosed embodiments include gas processing systems and methods that enable gas processing using a plurality of sorption modules configured to move back and forth between a first duct performing sorption of undesired gases and a second duct performing desorption of undesired gases. The first and second ducts may be disposed adjacent to and along one another such that the sorption modules can move directly between and within the first and second ducts. The sorption 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 sorption modules may include one or more removable sorbent cartridges, which may be removed and replaced independently of one another. The sorption modules may also be accessible via access panels in the first duct and / or the second duct for inspection, servicing, replacement, or other maintenance procedures. The adsorption modules may also be staggered back and forth between the first and second ducts such that one or more adsorption modules adsorb the undesirable gases in the first duct while one or more adsorption modules desorb the undesirable gases in the second duct. Various aspects and embodiments of the gas processing system are described in further detail below.

[0012] 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 for processing one or more gases in 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 proceeding with the gas processing system 16, the gas turbine system 10 will be described as one possible context for using the gas processing system 16.

[0013] 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, the inlet duct 30 including an air intake 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.

[0014] The compressor section 20 includes one or more compressor stages 44, each compressor stage 44 including 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 circumferentially arranged within each compressor stage 44 about a central axis of the compressor shaft 48. The compressor stages 44 may include between one and thirty compressor stages. Further, 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 being delivered to the combustor section 22.

[0015] 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 that exit each combustor 54 and enter the turbine section 24.

[0016] The turbine section 24 includes one or more turbine stages 66, each turbine stage 66 being circumferentially disposed about a turbine shaft 70 within a turbine casing 72 and including 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 are alternated between sets of turbine blades 68 and sets of turbine vanes 74 in a direction of flow of the hot combustion gases through the turbine section 24. During operation, the hot combustion gases 64 progressively expand and drive rotation of the turbine blades 68 of the turbine stages 66.

[0017] The load 26 may include a generator, a machine, or other driving load. The load 26 may be located at a hot end of the gas turbine engine 12 as shown in FIG. 1, or the load 26 may be located at a cold end of the gas turbine engine 12 (e.g., adjacent the compressor section 20). The exhaust section 28 may include an exhaust duct, an exhaust treatment device, 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 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 to directly cool the exhaust gas. In certain 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, similar to the gas turbine engine 12, may be configured to drive an electrical generator or other load.

[0018] 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 a communication circuitry 84 configured to communicate with the gas processing system 16. The control system 14 is also coupled to various sensors (S), as indicated by element number 86, distributed throughout the gas turbine system 10. For example, the sensors 86 may be coupled to and monitor 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 flow rate, the fuel supply from the fuel supply system 62 to the combustors 54, the operation of the exhaust treatment device in the exhaust section 28, the operation of the gas processing system 16 (e.g., movement of the adsorption module 100 to facilitate alternate 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 a first duct and a second position in a second flow path in a second duct, the adsorption modules 100 being configured to adsorb undesirable gases while disposed at the first position in the first duct and to desorb undesirable gases while disposed 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 stagger the movements of the different adsorption modules 100 to maintain at least one or more adsorption modules 100 in the first duct for adsorption while at least one or more adsorption modules 100 are disposed in the second duct for desorption.

[0019] As described in more detail below, the 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 a sorbent within the adsorption module 100. Undesirable gases are intended to cover any potentially undesirable gases contained in the fuel supply and / or exhaust gases. For example, undesirable gases include acid gases present in the fuel supply and exhaust gases. By way of further example, undesirable gases in the exhaust gases include carbon dioxide (CO 2 ) and carbon oxides such as carbon monoxide (CO X ), nitrogen oxides (NO X ), sulfur dioxide (SO 2 ) and other sulfur oxides (SO X ), or combinations thereof. The disclosed embodiments include a method for removing CO from the exhaust gas. 2 However, the following discussion is intended to cover each of these examples when referring to undesirable gases.

[0020] The gas processing system 16 may be configured to receive a fluid 15 (e.g., purge gas, steam, etc.) from a fluid supply system 17, which may include one or more components or devices that generate steam or another suitable fluid (e.g., liquid, gas, or steam) for desorbing the undesirable gas from the adsorption module 100. For example, the fluid supply system 17 may include a HRSG 27 and / or a steam turbine 29 that generate or output steam 96 as the fluid 15 for desorbing the undesirable gas from the adsorption module 100. By way of further example, the fluid supply system 17 may include a boiler 95 (e.g., a stand-alone or external boiler) configured to generate steam 96 from a heat source (e.g., combustion in the boiler 95), which may be used as the fluid 15 for desorbing the undesirable gas from the adsorption module 100. By way of further example, the fluid supply system 17 may include one or more other fluid supply devices or equipment configured to generate the vapor 96 or another fluid (e.g., purge gas, liquid, or vapor) for use as the fluid 15 for desorbing the undesired gas from the adsorption module 100. In certain embodiments, a vacuum system may be used independently and / or in combination with the fluid supply system 17 to facilitate desorption of the undesired gas from the adsorption module 100. The vacuum system may include one or more vacuum pumps configured to reduce the pressure of the adsorption module 100 (e.g., reduce the pressure surrounding the adsorbent), thereby creating a pressure differential that aids in the separation of the undesired gas (i.e., the adsorbed gas in the adsorbent) from the adsorption module 100 and / or the withdrawal of the undesired gas from the gas processing system 16. Thus, the vacuum system is configured to suction or pull the undesired gas from the adsorption module 100. The vacuum system may be disposed downstream of each adsorption module 100 and / or the adsorption module 100.

[0021] During operation, inlet gas (e.g., exhaust gas 94 from turbine section 24, fuel from fuel supply system 62, flue gas, etc.) flows through a first flow path in gas processing system 16, one or more of adsorption modules 100 adsorb undesirable gas from the inlet gas, and fluid 15 (e.g., steam) flows through a second flow path in gas processing system 16, desorbing undesirable gas from one or more of adsorption modules 100. The gas exits gas processing system 16 as treated gas 97 (e.g., treated exhaust gas, treated fuel, treated flue gas, etc.) that is lean (or substantially free) of undesirable gas, and fluid 15 exits gas processing system 16 as fluid 98 that is rich in undesirable gas. 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 processed fuel gas, the processed gas 97 may then enter the combustor section 22 of the gas turbine engine 12 .

[0022] Gas processing system 16 may include downstream equipment 99, such as a vacuum system, a fluid separation system, or any combination thereof, downstream of adsorption module 100. The vacuum system may include the equipment described above. The fluid separation system may include a flash tank, an absorber, or other equipment for separating fluid 15 from desorbed gases (e.g., undesired gases). Gas processing system 16 may use downstream equipment 99 to separate undesired gases (e.g., CO) from fluid 15 (e.g., steam). 2 ) can be separated and captured, and the captured gas can be used for other purposes. Thus, the gas processing system 16 can be described as a carbon capture adsorption system.

[0023] In operation, the gas turbine system 10 receives air from the intake section 18 into the intake duct 30, 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 the airflow that is delivered to the combustor section 22. For example, each stage 44 of the compressor section 20 compresses the airflow with a number of blades 46. The compressed airflow 58 then enters each combustor 54, where fuel nozzles 56 mix the compressed airflow with fuel 60 from a fuel supply system 62. The fuel and air mixture is combusted in each combustor 54 to generate hot combustion gases 64 that flow into the turbine section 24 and drive the rotation of the turbine blades 68 of each stage 66. Rotation of the turbine blades 68 drives rotation of a turbine shaft 70 which, via a shaft 90 coupled to the load 26 and a shaft 92 coupled to the compressor shaft 48, drives rotation of the load 26 and the compressor section 20. The turbine section 24 then discharges exhaust gases 94 to the exhaust section 28 for eventual treatment and discharge to the environment.

[0024] In the illustrated embodiment, the gas turbine system 10 includes 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 that are described in more detail below, and the disclosed embodiments are intended to be used in various combinations with one another in all of the aforementioned applications.

[0025] 2 is a schematic diagram of an embodiment of the gas processing system 16 of FIG. 1 , further illustrating details of the adsorption modules 100 moving back and forth linearly between ducts 102 and 104. As shown, the gas processing system 16 includes an adsorption system 106 having a plurality of movable adsorption assemblies 108 configured to move the adsorption modules 100 between ducts 102 and 104. For example, the adsorption system 106 may be configured to move the adsorption modules 100 in a staggered arrangement within the ducts 102 and 104, such that one or more of the adsorption modules 100 are disposed within the duct 102 for adsorption of undesirable gases, while one or more of the adsorption modules 100 are disposed within the duct 104 for desorption of undesirable gases. The adsorption modules 100 may be configured to move transversely (e.g., perpendicularly) to the longitudinal axes of the ducts 102 and 104, while simultaneously moving parallel to each other (e.g., along paths of movement parallel to the linear direction). Various aspects of the adsorption module 100 are described in further detail below.

[0026] The adsorption module 100 may be disposed entirely within the ducts 102 and / or 104 during normal operation of the gas processing system 16. The duct 102 has a flow passage 110 extending longitudinally therethrough between an inlet 112 and an outlet 114, with a sidewall 116 of the duct 102 extending about the flow passage 110. For example, the sidewall 116 may include a rectangular sidewall that defines the rectangular shape of the duct 102. Similarly, the duct 104 has a flow passage 118 extending longitudinally therethrough from an inlet 120 to an outlet 122, with a sidewall 124 of the duct 104 extending to surround the flow passage 118. For example, the sidewall 124 may define a rectangular sidewall 124 that defines the rectangular shape of the duct 104. The ducts 102 and 104 may be disposed directly adjacent to one another (e.g., in contact with one another) such that the ducts 102 and 104 have an intermediate wall 126 disposed directly between the flow passage 110 of the duct 102 and the flow passage 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. Although the illustrated embodiment depicts linear ducts 102 and 104, the ducts 102 and 104 may have one or more turns, curves, angled sections, or any combination thereof. Additionally, the ducts 102 and 104 may be the same size or different sizes from one another, and the ducts 102 and 104 may have the same shape or different shapes. Additionally, duct 102 may be described as an adsorption duct (e.g., for adsorbing undesired gases onto the adsorbent of adsorption module 100), while duct 104 may 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 a variety of fluid flows, such as gases, liquids, or multi-phase fluid flows.

[0027] In the illustrated embodiment, the duct 102 is configured to receive and pass a fluid stream 128 which may include fuel, exhaust gas, or other untreated gas having undesirable gases. For example, undesirable gases may include carbon dioxide (CO 2 ) and carbon oxides such as carbon monoxide (CO X ), nitrogen oxides (NO X ), sulfur dioxide (SO 2 ) and other sulfur oxides (SO X ), hydrogen sulfide (H 2 S), or any combination thereof. Ducts 104 are configured to receive and pass fluid stream 130, which may include steam, an inert gas such as nitrogen, air, or other fluid streams. As described in more detail below, each movable adsorption assembly 108 is configured to move its respective adsorption module 100 between flow paths 110 and 118 in duct 102 and duct 104 to alternately adsorb undesirable gases from fluid stream 128 and desorb undesirable gases in response to heat applied by fluid stream 130 in duct 104.

[0028] Each movable suction assembly 108 extends between the suction modules 100 and is movably coupled to a linear positioning assembly 132 that allows movement of the suction modules 100 from the ducts 102 to the ducts 104 and vice versa. The linear positioning assembly 132 may include a number of rail assemblies 134 coupled to the ducts 102 and 104 and the suction modules 100. Additionally, the linear positioning assembly 132 includes a drive 136 coupled to a drive line 138 that is coupled to the respective suction module 100.

[0029] As described in further detail below, each rail assembly 134 may include a mating set of rails 140 and one or more slides 142 configured to move along the rails 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, while the slides 142 are coupled to each of the suction modules 100. In the illustrated embodiment, the linear positioning assembly 132 has rail assemblies 134 disposed on opposing sides of each suction module 100. However, the rail assemblies 134 may be disposed on only one side, on opposite sides, at all four corners, or in any combination of positions along each suction module 100.

[0030] A drive line 138 extends between the drive 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 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 linearly move, 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 linear 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 about the drive line 138 to block leakage of the fluid flow 130 from the duct 104 to the surrounding environment. In some embodiments, the drive 136 may be disposed within a housing sealed along the sidewall 134 and / or within the interior of the duct 104.

[0031] In each linear 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 an outer periphery 152 of the adsorption module 100. Additionally, the opening 148 may be surrounded or bordered by a seal 150. For example, as described in more detail below, the seal 150 may include a brush seal that constantly contacts the outer periphery 152 of the adsorption module 100 as the adsorption module 100 moves between the duct 102 and the duct 104. The interface between the seal 150 and the outer periphery 152 thus blocks leakage between the fluid flow 128 in the duct 102 and the fluid flow 130 in the duct 104. 2, three of the linear positioning assemblies 132 are arranged such that the adsorption modules 100 are positioned in the duct 102 such that the adsorption modules 100 actively adsorb undesirable gases from the fluid stream 128. However, three of the adsorption modules 100 are also positioned in the duct 104 such that the undesirable gases can be desorbed from the adsorption modules 100 for regeneration of the adsorption modules 100 prior to further use in the duct 102. As will be explained in more detail below, the gas processing system 16 is configured to alternate the position of the adsorption modules 100 between the ducts 102 and 104 such that one or more of the adsorption modules 100 are adsorbing undesirable gases in the duct 102 while one or more of the adsorption modules 100 are being regenerated by desorption in the duct 104.

[0032] The controller 76 is configured to control the movement and positioning of the adsorption module 100 in response to various parameters, such as the adsorption rate in the duct 102 and the desorption rate in the duct 104. As shown in FIG. 2, in the duct 102, a fluid stream 128 processed by the adsorption module 100 results in the adsorption of undesired gases, and the fluid stream 128 is processed to produce a processed fluid stream 154 that is discharged through the outlet 114 of the duct 102. For example, the processed fluid stream 154 may be a stream of CO 2 , H2 S, SO 2 , NO 2 , or any combination thereof. In the duct 104, the fluid stream 130 provides heat to facilitate desorption of the undesired gas from the adsorption modules 100. For example, the fluid stream 130 may include steam configured to flow through and around each of the adsorption modules 100 in the duct 104, thereby heating the adsorption modules 100 and desorbing the undesired gas from the adsorption modules 100 for subsequent capture, cooling, and compression. Thus, the duct 104 discharges a cooled fluid stream 156, such as a cooled steam. In certain embodiments, the undesired gas desorbs from the adsorption modules 100 into the duct 104, which carries the desorbed gas with the cooled fluid stream 156 for subsequent capture, cooling, and compression. Alternatively, or in addition, the desorbed gas may be separated and captured at the individual adsorption modules 100.

[0033] The gas processing system 16 may also include one or more temperature control systems, such as a cooler 158 and a heater 160. For example, the fluid stream 128 entering the duct 102 may be a heated fluid stream, such as an exhaust gas, and thus one or more coolers 158 may be disposed in the duct 102 upstream of the mobile adsorption assembly 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 exclude the cooler 158 and / or the controller 76 may not activate the cooler 158 if the fluid stream 128 is sufficiently cold or below a threshold temperature. Similarly, in the duct 104, the fluid stream 130 may be heated by one or more heaters 160 to help increase the temperature of the fluid stream 130 before passing through the adsorption module 100 to be regenerated in the duct 104. For example, each heater 160 may be an electrical resistance heater, a heat exchanger, or other form of heater configured to raise the temperature high enough to help induce desorption of undesirable gases from the adsorption module 100. In certain embodiments, if the fluid stream 130 is sufficiently hot or above a threshold temperature, the duct 104 may exclude the heater 160 and / or the controller 76 may not activate the heater 160.

[0034] The gas processing system 16 may also include maintenance features to facilitate inspection, repair, service, replacement, or otherwise modification of the adsorption modules 100 in each of the movable adsorption assemblies 108. Accordingly, each of the movable adsorption assemblies 108 may include an access panel 162 removably coupled to the sidewall 116 across an access opening 164 aligned with the linear positioning assembly 132 and the respective adsorption module 100. Accordingly, as described in further detail below, the access panel 162 may be removable to permit visual inspection and / or removal of the adsorption module 100 through the access opening 164. The 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.

[0035] As further shown, the control system 14 includes a controller 76 coupled to each of the drives 146 of the linear positioning assembly 132, one or more coolers 158, one or more heaters 160, and a number 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, and thus, 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 a temperature sensor, a flow sensor, a pressure sensor, a fluid composition sensor, or any combination thereof. For example, the sensors 86 may include a gas composition sensor configured to monitor the adsorption rate of the undesirable gas from the adsorption module 100 disposed in the duct 102 and to monitor the desorption rate of the undesirable gas from the adsorption module 100 disposed in the duct 104.

[0036] The rate of adsorption or desorption of the undesirable gas may aid in facilitating control by the controller 76 of the movement of the adsorption module 100 between the duct 102 and the duct 104. For example, if the adsorption rate gradually decreases to a level below a threshold adsorption rate, the controller 76 may be configured to operate the drive 136 to move the adsorption module 100 from the duct 102 to the duct 104 so that the adsorption module 100 may undergo regeneration by desorbing the undesirable gas from the adsorption module 100 via the fluid stream 130. Similarly, if the desorption rate in the duct 104 gradually decreases to a level below a threshold desorption rate, the controller 76 may be configured to operate the drive 136 to move the adsorption module 100 from the duct 104 to the duct 102 so that the adsorption module 100 may function to adsorb the undesirable gas from the fluid stream 128 in the duct 102. Thus, sensor feedback from sensor 86 can facilitate control by controller 76 to shuttle adsorption modules 100 between ducts 102 and 104 so 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.

[0037] The controller 76 may also be configured to control the temperature within each of the ducts 102 and 104 through control of the cooler 158 and the heater 160. For example, the controller 76 may be configured to control the temperature within the duct 102 to maintain it below a threshold temperature, while the controller 76 may be configured to control the heater 160 to maintain the temperature within the duct 104 above the threshold temperature. Further details of the adsorption module 100, the movable adsorption assembly 108, the cooler 158, and the heater 160 are described below with reference to Figures 3-14.

[0038] Figure 3 is a schematic diagram of an embodiment of a temperature control system 170 configured to provide temperature control to the cooler 158 and / or heater 160 of Figure 2. For example, the temperature control system 170 may include a heat exchanger 172, a heat exchanger 174, and a fluid circuit 176 extending between and through the heat exchangers 172 and 174. For example, the fluid circuit 176 may include a plurality of coils or winding tubes 178 in the heat exchanger 172 and a plurality of coils or winding tubes 180 in the heat exchanger 174.

[0039] In the illustrated embodiment, the temperature control system 170 may be configured to transfer heat between a relatively low temperature fluid stream 182 passing through the heat exchanger 172 and a relatively high temperature fluid stream 184 passing through the heat exchanger 174. The fluid circuit 176 circulates a working fluid through coils or tubes 178 and 180 in the heat exchangers 172 and 174 to allow heat to be transferred between the relatively low temperature fluid stream 182 and the relatively high temperature fluid stream 184. For example, the low temperature fluid stream 182 is configured to transfer heat from the working fluid in the coil or tube 178, while the high temperature fluid stream 184 is configured to transfer heat to the working fluid in the coil or tube 180. Thus, the heat exchanger 172 may also be described as a heater, since the heated working fluid passing through the coil or tube 178 causes an increase in temperature of the low temperature fluid stream 182. The heat exchanger 174 may be described as a cooler because the relatively cool working fluid within the coils or tubes 180 is configured to cool or reduce the temperature of the hot fluid stream 184 .

[0040] In certain embodiments, the temperature control system 170 may be disposed within the gas processing system 16 in a variety of ways. For example, the heat exchanger 172 may correspond to the heater 160 while the heat exchanger 174 corresponds to the cooler 158 such that the temperature control system 170 is disposed entirely within the ducts 102 and 104. Alternatively, or in addition, the heat exchanger 172 may be disposed within the duct 104 as the heater 160 while the heat exchanger 174 is disposed outside the gas processing system 16 in the path of an entirely different hot fluid stream 184. Similarly, the heat exchanger 174 may be disposed within the duct 102 and function as the cooler 158 while the heat exchanger 172 is disposed entirely outside the gas processing system 16 in a cold fluid stream 182 separate from the gas processing system 16. However, the various configurations discussed above may be used alone or in combination with each other, as well as in combination with other types of coolers 158 and heaters 160.

[0041] 4 is a schematic diagram of an 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 features, such as a fluid pump 198 and a fluid control valve 200. The fluid pump 198 is configured to pump the fluid flow from the fluid supply 192, while the fluid control valve 200 is movable between an open position and a closed position to regulate the flow rate of the fluid flow from the fluid supply 192. Collectively, the fluid pump 198 and the fluid control valve 200 are configured to control the fluid flow 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, the fluid supply 192 may include a liquid or gas at a desired temperature to provide direct heating or cooling to the fluid stream 128 or the fluid stream 130 of the gas handling system 16. Thus, the direct heat exchange system 190 may be configured as a cooler 158 by injecting a relatively low temperature fluid into the fluid stream 128, or the direct heat exchange system 190 may be configured as a heater 160 by injecting a relatively high temperature fluid stream into the fluid stream 130. The fluid supply 192 may include water, an inert gas such as nitrogen, air, or other suitable gas or liquid.

[0042] 5 is a perspective view of one embodiment of the adsorption module 100 of FIGS. 1 and 2. As shown, the adsorption module 100 includes a sorbent cartridge 210 disposed within a framework 212. The framework 212 may include side walls 214, 216, 218, and 220, which collectively define a rectangular panel structure of the framework 212. For example, the side walls 214 and 216 may be flat rectangular panels parallel to one another, and the side walls 218 and 220 may be flat rectangular panels parallel to one another and perpendicular to the side walls 214 and 216. The side walls 214 and 216 or the side walls 218 and 220 may also be coupled to the slides 142 of the rail assembly 134, as described above with reference to FIG. 2.

[0043] The sorbent cartridge 210 can include a sorbent 212 contained within a screen 224. The sorbent 212 can include a plurality of sorbent particles, beads, balls, strips, or discrete elements of equal or different sizes and shapes. The screen 224 can include a wire mesh with openings small enough to retain the sorbent 212 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 lateral sides 230, 232, 234, and 236, or along any combination thereof. Thus, the screen 224 allows for 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 the upstream and downstream sides 226 and 228, while solid sidewalls may be positioned along sides 230, 232, 234 and 236 of sorbent cartridge 210.

[0044] Further, in certain embodiments, the sorbent cartridges 210 may be removable from the framework 212 for replacement or maintenance 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. Although 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, which may be removably disposed within the framework 212.

[0045] FIG. 6 is a perspective view of an embodiment of a sorbent module 100 having a plurality of 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 a plurality of small sorbent cartridges 210 arranged in rows 240, 242, and 244, and columns 246 and 248. The rows 248 are arranged along the upstream side 226, and the rows 248 are arranged along the 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 a plurality of differently sized and configured sorbent cartridges 210, which may include different dimensions, different sorbents 222, different screen arrangements of the screens 224, or any combination thereof. As shown, the adsorption module 100 has three rows 240, 242, and 244, although 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 adsorption module 100 is shown to have 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).

[0046] 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 of the framework 212. Thus, the sorbent module 100 includes cartridge openings 250 to facilitate inspection, servicing, replacement, and other maintenance operations for each of the sorbent cartridges 210, independent of one another. Additionally, 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 of the duct 102, as described above with reference to FIG. 2.

[0047] 7 is a partial schematic diagram of one embodiment of the movable suction assembly 108 illustrated in FIG. 2. In the illustrated embodiment, the movable suction assembly 108 is arranged such that the suction module 100 is slidably disposed along the 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 in a linear direction (e.g., a linear movement path) along the corresponding rail 140 as 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 the 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 can have multiple rail assemblies 134, such as rail assemblies 134 disposed along a corner or edge 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 disposed on each rail 140 of each side 260 and 262. However, certain embodiments of the rail assemblies 134 can include 2, 3, 4, 5, 6, 7, 8, 9, 10, or more slides 142 disposed on each rail 140.

[0048] The slides 142 may include rotatable wheels, blocks of low friction material, or combinations thereof. For example, the blocks of low friction material may include low friction metals or metal coatings, low fiction plastics or plastic coatings, low friction ceramics or ceramic coatings, nylon, polytetrafluoroethylene (PTFE), diamond-like carbon (DLC) coatings, or any combinations thereof. The slides 142 may also be partially or entirely captured within each of the rails 140 such that the slides 142 do not disengage from the rails 140 when moving the adsorption module 100 in the linear direction 264. Additionally, as discussed 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 the overall movement of the adsorption module 100 into one of the ducts 102 or 104. Additional details of the rail assembly 134 are described in greater detail below.

[0049] FIG. 8 is a partial cross-sectional view of the 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 shown, the rail 140 can include a C-shaped cross-section 270 having an upper wall 272 and a lower wall 274 coupled together via a sidewall 276. For example, the upper wall 272 can include a plate 278 having a radially inward lip 280, and the lower wall 274 can have a plate 282 having a radially inward lip 284. For example, the plates 278 and 282 can be substantially parallel to one another, while the radially inner lips 280 and 284 can project inwardly from one another about an interior channel 286. The sidewall 276 can also include a plate 288 coupled to the plates 278 and 282. 7 to allow the slide 142 to move along an interior channel 286 between plates 278 and 282 of the upper and lower walls 272 and 274. Additionally, radially inward lips 280 and 284 are configured to prevent the slide 142 from inadvertently moving out of the C-shaped section 270 of the rail 140.

[0050] As mentioned above, the slide 142 can be configured as a rigid low-friction slide, 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 in turn is coupled to the framework 212 of the suction module 100 via a mount 294. The wheel 290 can also include a bearing 296 disposed about the shaft 292, thereby helping to facilitate rotation of the wheel 290 about the shaft 292. The mount 294 can be configured to be fixedly or removably coupled to the framework 212. For example, the mount 294 can be welded to the framework 212 via one or more weld joints 298. In some embodiments, the wheel 290 can 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.

[0051] 9 is a schematic diagram of the embodiment of the movable adsorption assembly 108 of FIG. 2, further illustrating details of a seal 150 disposed about 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 adsorption module 100 between the ducts 102 and 104, as described above with reference to FIG. 2. As shown, the opening 142 is a rectangular shaped opening that contours to the rectangular shape of the adsorption module 100. The seal 150 is disposed about the periphery of the opening 148.

[0052] In certain embodiments, the seal 150 may include a seal frame or border 310 disposed about the opening 148 and a flexible seal material 312 disposed along the seal frame or border 310. For example, the seal frame or border 310 may have a rectangular shape contoured or matched to the rectangular shape of the opening 148, and the flexible seal material 312 may include a flexible metal, plastic, rubber, or other material depending on the temperatures of the fluid streams 128 and 130. For example, in certain embodiments, the flexible seal material 312 may include a plurality of fibers 314 of a brush seal 316. Thus, the brush seal 316 may include a plurality of closely spaced fibers 314 made of the flexible seal material 312 to facilitate dynamic sealing as the adsorption module 100 moves through the opening 148 between the duct 102 and the duct 104.

[0053] Regardless of the position of the adsorption module 100, the seal 150 is configured to maintain a seal along the framework 212 of the adsorption module 100 and helps block leakage of the fluid flows 128 and 130 between the ducts 102 and 104. In some embodiments, the seal 150 may include a number of different types of seals, such as a brush seal 316 with fibers 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, discrete pieces of flexible sealing material 312 (e.g., fibers 314 of the brush seal 316), overlapping flaps of flexible sealing material 312, or any combination thereof.

[0054] 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 of the mid-wall 126. As shown, the seal 150 is disposed with the fibers 314 of the brush seal 316 in contact with the framework 212 of the adsorption module 100. The fibers 314 are coupled to and supported by a seal frame or boundary 310 that includes an end wall 320 and an opposing side wall 322. The end wall 320 is configured to extend along an inner edge 324 of the opening 148, and the side wall 322 is configured to extend along opposing side surfaces 326 of the mid-wall 126. Collectively, the end wall 320 and the opposing side wall 322 define a C-shaped structure 328 configured to be self-retained against the mid-wall 126 in the opening 148. However, in certain embodiments, the C-shaped structure 328 of the seal frame or boundary 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 threaded bolts, clamps, springs or hooks, dovetail joints, or a combination thereof.

[0055] Again, the illustrated seal 150 has fibers 314 of a brush seal 316 bonded to a seal frame or boundary 310. As shown, the fibers 314 are bonded directly to an end wall 320. The fibers 314 of the brush seal 316 are configured to provide a seal between the mid-wall 126 and the adsorption module 100 as the adsorption module 100 moves along the linear positioning assembly 132 between the ducts 102 and 104. In other embodiments, the fibers 314 can be replaced or supplemented with other sealing features, such as flexible flaps, flexible gaskets, or any combination thereof. These flexible flaps or gaskets may be made of flexible metal, plastic, or other materials.

[0056] FIG. 11 is a schematic diagram of an 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 a 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 number 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 at a border or flange 342 of the access panel 162 that extends or overlaps with a portion of the sidewall 116 outside the access opening 164. The fasteners 340 can be loosened, removed, or adjusted to allow removal or movement of the access panel 162 from the access opening 164, thereby allowing access for inspection, insertion, or removal of the suction module 100 from the interior of the duct 102, as shown in FIG.

[0057] FIG. 12 is a partial perspective view of the embodiment of the gas processing system 16 of FIG. 2 , further illustrating details of the adsorption module 100 partially removed and protruding from the sidewall 116 of the duct 102 through the 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 can include a plurality of threaded shafts 350 coupled to the sidewall 116, while the access panel 162 includes a plurality of shaft openings 352 for receiving the threaded shafts 350. The fastener 340 can also include a plurality of threaded nuts 354 configured to couple with the threaded shafts 350 on the exterior of the access panel 162, thereby removably securing the access panel 162 to the sidewall 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.

[0058] The linear positioning assembly 132 allows the adsorbent module 100 to be linearly slid out of the duct 102 as indicated by arrow 356, while the cartridge openings 250 provided 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 can be independently accessed through the respective access panels 162 and access openings 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 illustrated in FIG. 12, one or more of the sorbent cartridges 210 can also be independently accessed and moved through the cartridge openings 250. For example, each of the individual sorbent cartridges 210 can be linearly moved out of the cartridge openings 250, inspected, replaced, and reinstalled in the respective cartridge openings 250. 12, each of the rail assemblies 134 can include a rail extension 360 configured to extend outwardly from the side wall 116 when the suction module 100 is withdrawn from the duct 102. When the suction module 100 is returned to the duct 102, the rail extension 360 can slide back into the interior of the duct 102.

[0059] 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 as illustrated 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 compressibly 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, washer 372 may be a conical shaped washer or Belleville washer, a wave washer, a split or spring lock washer, a toothed lock washer, or any combination thereof.

[0060] Figure 14 is a flow chart of an embodiment of a process 380 for processing gas in a system such as the gas processing system 10 of Figure 1. The gas processing may correspond to fuel gas processing, exhaust gas processing, or other gas processing to remove one or more undesirable gases as described in detail above. For example, the undesirable gases may be CO 2 , H 2 S, SO 2 , NO 2, or any combination thereof. In the illustrated embodiment, process 380 may include adsorbing gas from first fluid stream 128 in first duct 102 into adsorption module 100 to generate treated first fluid stream 154, as indicated by block 382. Adsorption may include adsorption into one or more sorbent cartridges 210 of adsorption module 100, as discussed in detail above. Process 380 may then continue to monitor one or more parameters related to adsorption of 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 proceed to compare the parameter 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 a need to regenerate the adsorption module 100 to remove undesirable gases adsorbed on the sorbent 222 of the sorbent cartridge 210.

[0061] The process 380 may then proceed to 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 in a direction perpendicular to the longitudinal axes of the ducts 102 and 104.

[0062] The process 380 may then proceed to desorb gas from the adsorption module 100 via the second fluid stream 130 in the second duct 104 to regenerate the adsorption module 100, as indicated by block 390. As noted above, regeneration in the second duct 104 may include flowing a heated fluid, such as steam, through and / or around the adsorption module 100 to increase the temperature of the adsorbent 222 and aid in desorption of the undesired gas from the adsorption cartridge 210 into the fluid stream 130. The process 380 may then proceed to capture, cool, and compress the gas desorbed from the adsorption module 100, as indicated by block 392. The undesired gas desorbed from the adsorption module 100 may be captured directly at the respective adsorption module 100, in a subsequent process downstream from the adsorption module 100, or by another technique. The cooling may also facilitate separation of the fluid stream 130 and 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 sent to storage or a pipeline.

[0063] The process 380 may also monitor one or more parameters related to the desorption of gas from the adsorption module 100, as indicated by block 394. For example, the process 380 may monitor the temperature, flow rate, gas composition, or desorption rate of gas from the adsorption module 100. The process 380 may then compare the one or more parameters to a corresponding threshold value, as indicated by block 396. The comparison in block 396 may include comparing the desorption rate to a threshold value, such that if the parameter meets the threshold value, a sufficiently low rate of desorption may trigger the process 380 to move the adsorption module 100 from the second duct 104 to the first duct 102, as indicated by block 398. The process 380 may then repeat the process as indicated by block 400. Thus, process 380 may repeatedly circulate or move adsorption module 100 back and forth between duct 102 and duct 104, thereby enabling adsorption of undesirable gases onto adsorption module 100 in duct 102 and desorption of undesirable gases from adsorption module 100 in duct 104.

[0064] A technical effect of the disclosed embodiments includes a gas treatment system with an adsorption module moving linearly between flow paths of a first and a second duct, the adsorption module adsorbing undesirable gas in the first duct and desorbing undesirable gas in the second duct. The first and second ducts may be positioned directly adjacent to one another or may share an intermediate wall. The adsorption module may be configured to move linearly alone on one or more rail assemblies of a linear positioning system. The first duct may also be described as an adsorption duct and the second duct may be described as a desorption duct. When multiple adsorption modules are installed in the ducts, the controller may control the movement and positioning of the adsorption modules such that one or more adsorption modules adsorb undesirable gas in the first duct while one or more adsorption modules desorb undesirable gas in the second duct.

[0065] The subject matter detailed above may be defined by one or more clauses, as set forth below. [Embodiment 1] The system includes a gas treatment system having an adsorption module, the adsorption module includes one or more sorbent cartridges having a sorbent material. The gas treatment system further includes a linear positioning assembly configured to move the adsorption module along a linear path of travel between a first position in a first flow path and a second position in a second flow path. The gas treatment system is configured to adsorb an undesirable gas from a first fluid flow in the first flow path into the sorbent material when the adsorption module is disposed in the first position. The gas treatment system is configured to desorb the undesirable gas from the sorbent material when the adsorption module is disposed in the second position. [Embodiment 2] 11. The system of any of the preceding embodiments, comprising a combustion system having the first flow path coupled to the gas treatment system. [Embodiment 3] The system of any preceding embodiment, wherein the combustion system includes a gas turbine system. [Embodiment 4] 2. The system of any preceding embodiment, wherein the undesirable gas comprises carbon dioxide (CO2). [Embodiment 5] 11. The system of any preceding embodiment, wherein the first flow path includes a fuel flow path or an exhaust flow path. [Embodiment 6] 11. The system of any preceding embodiment, wherein the second flow path comprises a steam flow path. [Embodiment 7] 20. The system of any of the preceding embodiments, comprising a vacuum system having one or more vacuum pumps configured to create a pressure differential to help separate the undesirable gas from the sorbent material. [Embodiment 8] The system of any of the preceding embodiments, further comprising an intermediate wall disposed between the first and second flow paths, the intermediate wall includes a seal disposed about an opening, the opening is configured to enable movement of the adsorption module between the first and second positions, and the seal is configured to seal against the adsorption module. [Embodiment 9] 11. The system of any of the preceding embodiments, comprising a first duct having the first flow path and a second duct having the second flow path, the first and second ducts extend along one another. [Embodiment 10] 2. The system of claim 1, wherein the first duct includes an access panel disposed over an access opening in a sidewall of the first duct, and the adsorption module is accessible through the access opening. [Embodiment 11] The system of any of the preceding embodiments, wherein the adsorption module includes a plurality of the sorbent cartridges, each of the plurality of sorbent cartridges being removable from a framework of the adsorption module. [Embodiment 12] The system of any of the preceding embodiments, wherein the linear positioning assembly includes a first rail assembly having a first slide disposed in a first rail, the first rail extends between the first and second flow paths, and the first slide is coupled to the adsorption module. [Embodiment 13] The system of any of the preceding embodiments, wherein the linear positioning assembly includes a second rail assembly having a second slide disposed in a second rail, the second rail extends between the first and second flow paths, and the second slide is coupled to the adsorption module. [Embodiment 14] 2. The system of any of the preceding embodiments, wherein the first slide includes a first wheel and the second slide includes a second wheel. [Embodiment 15] 2. The system of any of the preceding embodiments, wherein the linear positioning assembly includes a drive line coupled to a drive and the adsorption module, the drive being configured to move the drive line to move the adsorption module between the first and second positions. [Embodiment 16] The system of any of the preceding embodiments, comprising a controller coupled to the drive and one or more sensors, the controller being configured to control the drive to move the adsorption module between the first and second positions 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. [Embodiment 17] The system of any of the preceding embodiments, wherein the gas treatment system comprises a plurality of adsorption modules and a respective plurality of linear positioning assemblies, the plurality of adsorption modules includes the adsorption module, and the plurality of linear positioning assemblies includes the linear positioning assembly. [Embodiment 18] 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 includes one or more sorbent cartridges having a sorbent material. The system further includes a plurality of linear positioning assemblies, each linear positioning assembly of the plurality of linear positioning assemblies is configured to independently move one of the plurality of adsorption modules between the first and second ducts. [Embodiment 19] 2. The system of claim 1, wherein each of the plurality of adsorption modules is configured to adsorb an undesirable gas into the sorbent material when disposed in the first duct, and each of the plurality of adsorption modules is configured to desorb the undesirable gas from the sorbent material when disposed in the second duct. [Embodiment 20] The method includes moving, via a linear positioning assembly, an adsorption module of a gas treatment system along a linear path of travel between a first position in a first flow path and a second position in a second flow path, the adsorption module includes one or more sorbent cartridges having a sorbent material. The method further includes adsorbing an undesirable gas into the sorbent material of the adsorption module when the adsorption module is disposed in the first position in the first flow path. The method further includes desorbing the undesirable gas from the sorbent material of the adsorption module when the adsorption module is disposed in the second position in the second flow path.

[0066] This specification uses examples to describe the present embodiments, including the best mode, and to enable any person of ordinary skill in the art to practice the disclosed embodiments, including making and using any devices or systems 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 do not differ substantially from the literal language of the claims. [Explanation of symbols]

[0067] 10:Gas turbine system 12:Gas turbine engine 14:Control system 15:Fluid 16:Gas handling 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:Upstream inlet duct 31, 158:Cooler 32:Bell mouth 34:Inner hub 36:Outer wall 38:Stator vane 40:Inlet guide vane 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: processor 80: memory 82: instructions 84: communication circuit 86: sensor 88: arrow 90, 92: shaft 94: exhaust gas 95: boiler 96: steam 97: process gas 98: fluid 99: downstream equipment 100: adsorption module 102: first duct 104: second duct 106: adsorption system 108: movable adsorption assembly 110, 118: flow path 112, 120: inlet 114, 122: outlet 116, 124: side wall 126: intermediate wall 128, 130: fluid flow 132: linear positioning assembly 134: rail assembly 136: drive 138: drive line 140: rail 142: slide 144, 148: opening 146, 150: bushing / seal 152: outer periphery 154: treated fluid stream 156: cooled fluid stream 160: heater 162: access panel 164: access opening 170: temperature control system 172, 174: heat exchanger 176: fluid circuit 178, 180: coil / wound tube 182: cold fluid stream 184: hot fluid stream 190: Direct heat exchange system 192: Fluid supply 194: Fluid distribution manifold 196: Fluid conduit 198: Fluid pump 200: Fluid control valve 202: Fluid nozzle 204: Atomization 210: Sorbent cartridge 212: Framework 214, 216, 218, 220, 276: Side wall 224: Screen 226: Upstream side 228: Downstream side 230, 232, 234, 236: Side 222: Sorbent 240, 242, 244: Row 246, 248: Column 250: Cartridge opening 260, 262: Side 264: Linear direction / arrow 270: C-shaped cross section 272: Top wall 274: Bottom wall 278, 282, 288: Flat plate 280, 284: Radial inner lip 286: internal channel 290: wheel 292: shaft 296: bearing 294: mount 298: welded joint 310: seal frame / boundary 312: flexible seal material 314: fabric 316: brush seal 320: end wall 322: opposing side walls 324: inner end 326: opposing sides 328: C-shaped structure 340: fastener 342: flange 350: threaded shaft 352: shaft opening 354: threaded nut 356, 358: arrow 360: rail extension 370: gasket 372; intermediate washer

Claims

1. 1. A system comprising a gas processing system, the gas processing system comprising: a sorption module including one or more sorbent cartridges having a sorbent; a linear positioning assembly configured to move the adsorption module along a linear 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 undesirable gases from the first fluid stream in the first flow path onto the adsorbent when the adsorption module is disposed in the first position; The gas processing system is configured to desorb undesirable gases from the adsorbent when the adsorption module is disposed in the second position.

2. The system of claim 1 including a combustion system having a first flow path coupled to a gas processing system.

3. The system of claim 2 , wherein the combustion system comprises a gas turbine system.

4. The undesirable gas is carbon dioxide (CO ２ 10. The system of claim 1, further comprising:

5. The system of claim 1 , wherein the first flow path comprises a fuel flow path or an exhaust flow path.

6. The system of claim 1 , wherein the second flow path comprises a steam flow path.

7. 10. The system of claim 1, comprising a vacuum system having one or more vacuum pumps configured to create a pressure differential that aids in separating the undesired gas from the adsorbent.

8. 2. The system of claim 1, comprising an intermediate wall disposed between the first flow path and the second flow path, the intermediate wall including a seal disposed about the opening, the opening configured to allow movement of the adsorption module between the first position and the second position, and the seal configured to seal against the adsorption module.

9. The system of claim 1 including a first duct having a first flow path and a second duct having a second flow path, the first and second ducts extending along one another.

10. 10. The system of claim 9, wherein the first duct includes an access panel disposed over an access opening in a sidewall of the first duct, the suction module being accessible through the access opening.

11. The system of claim 1 , wherein the sorbent module includes a plurality of sorbent cartridges, each of the plurality of sorbent cartridges being removable from the framework of the sorbent module.

12. 2. The system of claim 1, wherein the linear positioning assembly includes a first rail assembly having a first slide disposed within a first rail, the first rail extending between the first and second flow paths, the first slide being coupled to the suction module.

13. 13. The system of claim 12, wherein the linear positioning assembly includes a second rail assembly having a second slide disposed within the second rail, the second rail extending between the first and second flow paths, and the second slide coupled to the suction module.

14. The system of claim 13 , wherein the first slide includes a first wheel and the second slide includes a second wheel.

15. 2. The system of claim 1, wherein the linear positioning assembly includes a drive line coupled to the drive device and to the suction module, the drive device configured to move the drive line to move the suction module between the first position and the second position.

16. 16. The system of claim 15, comprising a controller coupled to a drive and one or more sensors, the controller configured to control the drive to move the adsorption module 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.

17. The system of claim 1 , wherein the gas processing system comprises a plurality of adsorption modules and a respective plurality of linear positioning assemblies, the plurality of adsorption modules including said adsorption modules and the plurality of linear positioning assemblies including said linear positioning assemblies.

18. 1. A system comprising: a first duct having a first flow path; a second duct having a second flow path; a plurality of sorption modules, each sorption module of the plurality of sorption modules comprising one or more sorbent cartridges having a sorbent; a plurality of linear positioning assemblies; Including, A plurality of linear positioning assemblies, each linear positioning assembly of the plurality of linear positioning assemblies configured to independently move one of the plurality of suction modules between the first duct and the second duct.

19. 20. The system of claim 18, wherein each of the plurality of adsorption modules is configured to adsorb the undesirable gas onto the adsorbent when disposed in the first duct, and each of the plurality of adsorption modules is configured to desorb the undesirable gas from the adsorbent when disposed in the second duct.

20. 1. A method comprising: moving, via a linear positioning assembly, a sorbent module of the gas processing system along a linear movement path between a first position in a first flow path and a second position in a second flow path, the sorbent module comprising one or more sorbent cartridges having a sorbent; adsorbing the undesired gas onto an adsorbent in the adsorption module while the adsorption module is disposed in a first position in the first flow path; desorbing the undesired gas from the adsorbent of the adsorption module while the adsorption module is disposed in a second position in the second flow path; A method comprising:

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