Carbon dioxide capture system

Abstract

The invention relates to a system (10) for capturing CO2 in flue gases, having at least one cooling module (11), at least one absorption module (12) and at least one solvent regeneration module (13), at least one flue gas delivery duct (14) arranged as a flue gas delivery duct, said system (10) being characterized in that:-it comprises a marine structure (15), the marine structure (15) has a housing (19) and at least one partition bulkhead (20),-the internal volume of the at least one module is at least partially delimited by the housing (19) and / or the at least one partition bulkhead (20).

Description

Technical Field

[0001] The present invention relates to the field of reducing greenhouse gas emissions and in particular to carbon dioxide (CO2) capture. In particular, the present invention relates to a CO2 capture system. Background Art

[0002] The known prior art on which the present invention is based is described below.

[0003] Carbon dioxide (CO2) is believed to account for 81% of greenhouse gas or "GHG" emissions in Europe, according to data published by the French government's General Commission for Sustainable Development (Commissariat Général au Développement Durable) in the 2022 edition of "Chiffres clés du climat France, Europe et Monde". CO2 is the main greenhouse gas and one of the causes of global warming. For example, CO2 is emitted through gaseous emissions such as industrial waste gases, especially when fossil fuels are burned to supply electricity and heat. These industrial processes include, for example, factories that produce energy from fossil energy, natural gas processing plants, refineries, petrochemical production plants, cement plants and fossil fuel-based hydrogen plants. Methane is another greenhouse gas that is also emitted by many industrial processes and has a global warming potential that is 30 times that of CO2. The increase in greenhouse gas concentrations in the atmosphere caused by anthropogenic emissions increases energy emissions to the ground, causing an imbalance in the earth's energy balance and causing surface temperatures to rise. Therefore, preventing the emission of greenhouse gases such as CO2 or methane is an important social issue.

[0004] Offshore and / or onshore oil and / or gas facilities are one of the industrial processes that emit greenhouse gases. In fact, these facilities emit methane and / or produce CO2 during operation, especially during activities related to hydrocarbon extraction.

[0005] Several pathways have been explored to reduce CO2 emissions, such as more efficient use of energy, support for the use of alternative fuels and energy sources, and carbon capture and storage (CCS). The CO2 capture technologies developed include post-combustion capture, pre-combustion capture, oxycombustion capture, and chemical-looping post-combustion capture. Various carbon dioxide separation technologies can be used along with these options, such as chemical absorption, physical absorption, membrane absorption, and separation. Of these technologies, chemical absorption has undergone the most development and implementation, making it the preferred option for CO2 capture.

[0006] However, not all technologies are suitable for implementation in offshore and / or onshore facilities, particularly in oil and / or gas facilities, and the specific characteristics of these facilities must be considered when designing greenhouse gas capture systems. Fixed, mobile or floating facilities, either offshore or onshore, typically support a number of equipment required to carry out the activities of the facility. Facilities may be designed, for example, for drilling, fluid production, pumping, storage and / or transportation.

[0007] In general, these facilities consist of two parts: a first, topside part, which includes the equipment required to carry out the activities of the facility; and a second, carrier part, which supports the facility (either at sea or on land) and can also participate in the activities of the facility, in particular in the case of storage platforms, where the carrier part includes storage capacity.

[0008] In order to capture and / or process and / or store these gases, in particular CO2, it is usually necessary to modify existing facilities and / or to build at least one additional structure on which the facilities for capturing and processing gases / CO2, coming for example from the flue gases generated by facilities for generating mechanical power and / or electricity and / or heat, are deployed. However, this solution is cumbersome, time-consuming and expensive and, depending on the location where the facility is to be installed, is not always possible. In addition, this solution requires a large amount of material for the construction, deployment, connection and / or performance of the facility's activities. This makes it a particularly expensive solution. In addition, the large size and weight of such equipment have a direct impact on the design and cost of the fixed, movable or floating supporting structure, which hinders the implementation of auxiliary facilities.

[0009] It is therefore proposed to build on existing facilities equipment specifically designed for capturing and treating the gas / CO2, such as towers (columns) for cooling, absorption and regeneration, as well as a number of pipes. However, such equipment requires great height and a large space to be combined with existing facilities and must be installed on the surface or placed near the flue gases generated by the facility's activities. Again, depending on the location where the facility is to be installed and the constraints to which it may be subject, such a construction may prove to be too expensive, difficult to implement, or simply impossible to build. In fact, depending on the facility's activities and the location where it is to be installed, its design must meet many constraints (such as surges, depth, seismic risks, etc.). This increases the difficulty of retrofitting existing facilities.

[0010] Furthermore, facilities generally have a so-called long service life of 20 to 30 years, which means that they are difficult to modify and / or replace. Furthermore, the original construction of the facility was not necessarily designed to receive equipment other than that envisaged for carrying out its activities, nor to connect its activities with a second platform.

[0011] Therefore, in the scientific article entitled "Offshore power generation with carbon capture and storage to decarbonise mainland electricity and offshore oil and gas facilities: A techno-economic analysis" (Roussanaly et al - Applied Energy, 2019), a new platform design is proposed, consisting in, for example, installing a power plant and a gas turbine on the surface part of the platform. The CO2 capture element is set in the center of the second part below the gas turbine, and space is provided in the depth for dedicated heavy elements to stabilize the platform. The rest of the second part is left empty. The large size and weight of such equipment, as well as the structure, which is usually made of steel, lead to very high costs, in addition to taking up space.

[0012] Currently, these facilities are not designed to minimize the construction and / or production and / or facility costs of CO2 capture systems. Therefore, solutions are needed to overcome expensive construction or large and expensive equipment. Likewise, it becomes important to adopt novel solutions that are easy and fast to deploy. In addition, in the face of the climate emergency, it is also crucial to be able to reduce CO2 emissions.

[0013] The object of the present invention is to overcome the disadvantages of the prior art. In particular, the object of the present invention is to provide a CO2 capture system that is suitable for any type of installation, whatever the activity it carries out, and that is capable of reducing CO2 emissions and costs, and that is moreover easy to deploy quickly, in particular in the context of existing installations or when installing new ones. Summary of the invention

[0014] The present invention is intended to overcome these shortcomings. A simplified overview of selected aspects, embodiments and examples of the present invention is presented below, with the purpose of providing a basic understanding of the present invention. Therefore, the present invention does not constitute an exhaustive overview of all aspects, embodiments and examples of the present invention. Its sole purpose is to present selected aspects, embodiments and examples of the present invention in a concise form, as an introduction to a more detailed description of various aspects, embodiments and examples of the present invention after the present invention.

[0015] The present invention relates in particular to a system for capturing CO2 from flue gases, comprising at least one cooling module, at least one absorption module and at least one solvent regeneration module, each of said modules being designed to define an internal volume;

[0016] The internal volume of the cooling module is designed to be able to cool the flue gas including CO2 with a fluid, thereby cooling the flue gas;

[0017] The internal volume of the absorption module is designed to enable the cooled flue gas to contact with a lean solvent capable of absorbing CO2 from the flue gas to produce an enriched solvent;

[0018] The internal volume of the solvent regeneration module is designed to be able to process the rich solvent to release the absorbed CO2 and form the lean solvent;

[0019] The system further comprises at least one smoke delivery duct, which is designed to deliver smoke to the cooling module, and the system is characterized in that:

[0020] - it comprises a marine structure having a hull and at least one compartmentalisation bulkhead,

[0021] The inner volume of at least one module is at least partially defined by the casing and / or at least one dividing bulkhead.

[0022] The Applicant has developed a system capable of reducing CO2 emissions from any type of facility, shortening the time and cost of construction or deployment.

[0023] In fact, through the system developed by the Applicant, marine structures are fully optimized and can integrate all or part of the CO2 absorption capture facilities.

[0024] Through the present invention, the devices, pipelines and other equipment constituting the CO2 capture system are directly incorporated into the marine structure and directly separated by the marine structure, which greatly optimizes the unoccupied space and reduces the materials used, thereby reducing costs.

[0025] Furthermore, the CO2 capture system according to the invention makes it possible to follow the activities of the installation without interfering with its operation, activities or parameters, such as its floating capacity or its installation location.

[0026] Furthermore, such a system according to the invention is particularly robust and can be deployed quickly.

[0027] According to other optional features of the system, the system may optionally include one or more of the following features alone or in any combination thereof:

[0028] - at least one smoke conveying duct is at least partially formed by the casing and / or at least one dividing bulkhead,

[0029] at least one dividing bulkhead corresponds to at least one transverse bulkhead, at least one transverse partial bulkhead, at least one longitudinal bulkhead and / or at least one longitudinal partial bulkhead of the connecting shell,

[0030] -The shell is a single-layer shell,

[0031] - the housing comprises at least one side shell and / or at least one bottom shell,

[0032] -The shell is a double shell,

[0033] - the housing comprises at least one side shell, at least one bottom shell, at least one transverse inner shell, at least one longitudinal inner shell and / or an inner bottom,

[0034] - at least one flue gas conveying duct shares at least 0.05% of the surface of the housing with the housing,

[0035] - at least one flue gas conveying duct shares at least 10% of the surface of the housing with the housing,

[0036] - the internal volume of each module is at least partially defined by the housing,

[0037] - at least one smoke conveying duct shares with at least one dividing bulkhead at least 5% of the surface of at least one dividing bulkhead,

[0038] - the housing is at least partially formed by at least one dividing bulkhead,

[0039] - the internal volume of each module is at least partially defined by at least one dividing bulkhead,

[0040] - the internal volume of at least one module is at least partially defined by at least one smoke transport duct,

[0041] - the internal volume of each module is at least partially defined by at least one flue gas transport duct,

[0042] - the system further comprises at least one flue gas generating unit designed to generate flue gas from hydrocarbons,

[0043] - the smoke generating unit is designed to inject smoke into at least one smoke conveying duct,

[0044] at least one smoke generating unit corresponds to a device for generating electrical power and / or mechanical power and / or thermal power,

[0045] - the flue gas generating unit is configured to be capable of a combined cycle,

[0046] - the smoke generating unit comprises a system for recirculating part of the smoke,

[0047] - the smoke generating unit comprises a system for selectively recycling part of the smoke,

[0048] - the absorption module is formed by at least one tower sharing a common wall with the casing,

[0049] - the absorption module is formed by at least two towers each sharing a common wall with the housing,

[0050] - the absorption module is designed to be able to perform cross-flow absorption,

[0051] - the absorption module is designed to be able to perform countercurrent absorption,

[0052] - the system also comprises at least one washing module,

[0053] - when the absorption module is designed to be able to perform cross-flow absorption, the CO2 capture system comprises at least one internal volume of the absorption module and at least one internal volume of the scrubbing module,

[0054] an absorption module designed to enable cross-flow absorption comprises at least one absorption module internal volume and at least one wash module internal volume located within the same absorption module,

[0055] - an absorption module designed to enable cross-flow absorption may comprise at least one absorption section or a plurality of absorption sections, each section being delimited by a partial bulkhead,

[0056] - The system is designed to enable horizontal and / or vertical and / or radial fluid flows,

[0057] - the housing is covered with a coating, preferably a polymer coating,

[0058] - The shell is made of concrete or steel,

[0059] - the system is fixed or floating,

[0060] - the system is partially submerged,

[0061] - the system further comprises at least one solvent storage module,

[0062] - at least a portion of the cooling module is in direct or indirect contact with the fluid,

[0063] - At least a portion of the cooling module is in contact with an indirect cooling circuit.

[0064] According to a second object, the invention relates to the use of a CO2 capture system according to the invention in electricity production, steam production, CO2 processing, CO2 regulation, CO2 transport, CO2 storage, waste gas recovery, waste gas treatment, natural gas extraction, oil extraction and / or marine transport. The invention preferably relates to the use of a CO2 capture system in natural gas extraction, in other words, the natural gas may also be liquefied natural gas, but may also be synthesis gas (e.g. from coal gasification) or even, but less preferably, biogas produced by methanation of biomass.

[0065] The use of such a system can therefore reduce CO2 emissions and optimize costs, while being rapidly deployable and compatible with multiple facilities and platform activities that generate CO2 emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Other characteristics and advantages of the invention will be better understood by reading the following description with reference to the accompanying drawings, which are given for illustrative purposes and are in no way limiting.

[0067] [ Figure 1 ] Figure 1 A schematic diagram showing an embodiment of a CO2 capture system according to the present invention is shown.

[0068] [ Figure 2 ] Figure 2 A schematic diagram showing an embodiment of a CO2 capture system according to the present invention is shown.

[0069] [ Figure 3 ] Figure 3 A schematic diagram showing an embodiment of a CO2 capture system according to the present invention is shown.

[0070] [ Figure 4 ] Figure 4 A schematic diagram showing an embodiment of a CO2 capture system according to the present invention is shown.

[0071] [ Figure 5 ] Figure 5 A schematic diagram of an embodiment of a single-layer housing is shown.

[0072] [ Figure 6 ] Figure 6 A schematic diagram of an embodiment of a double shell is shown.

[0073] For illustrative purposes, these drawings do not necessarily reflect scale, particularly with respect to thickness. DETAILED DESCRIPTION

[0074] Below, a summary of the present invention and related terms will be described before introducing the shortcomings of the prior art, and finally showing in more detail how the present invention overcomes these shortcomings.

[0075] In the remainder of this specification, the expression "marine structure" may correspond to a fixed or floating structure (structure), and may or may not be movable. A marine structure may be at sea, near the coast, or even on a body of water, such as a lake. A marine structure may correspond to an offshore installation.

[0076] Within the meaning of the present invention, the expression "offshore installation" may correspond to a fixed or floating platform, a barge or a gravity-based structure. The structure may be a platform.

[0077] Within the meaning of the present invention, the term "hull" may correspond to a shell defining the exterior of a marine structure.

[0078] Within the meaning of the present invention, the expression "dividing bulkhead" may correspond to a wall or partition that passes through the marine structure from one side to the other, for example from top to bottom, from left to right (or right to left), or even along a diameter or radius. The dividing bulkhead may be, for example, transverse or longitudinal. Furthermore, the dividing bulkhead may be integral, in other words uninterrupted or continuous, or it may be discontinuous, in other words it may be a set of walls that are preferably separated from each other along a given axis. The dividing bulkhead may be complete or partial.

[0079] Within the meaning of the present invention, the expression "partially immersed" may correspond to the immersion of a part. The part may have a larger or smaller volume and does not represent the whole.

[0080] Within the meaning of the present invention, the expression "at least partly" may correspond to an expression incompletely, partially or completely. The expression may denote a whole or a part of a whole. For example, it may relate to two elements that contribute to forming a common whole. For example, a first element is partly formed by a second element, the first element and the second element having at least one common element, surface and / or volume.

[0081] Within the meaning of the present invention, the expression "direct contact" may correspond to contact between two elements without the presence of an intermediate.

[0082] Within the meaning of the present invention, the expression "indirect contact" may correspond to a contact between two elements via one or more intermediate elements.

[0083] Within the meaning of the present invention, the expression "shared" may correspond to at least two generally different elements, which are connected together or are one. For example, a volume may be shared with a surface and / or a bulkhead and / or a duct; this may correspond to the fact that the surface and / or the bulkhead and / or the duct participate in defining the volume.

[0084] Within the meaning of the present invention, the term "pipe" may correspond to a conduit, a channel or a pipe capable of allowing a fluid (liquid or gas) to flow and / or transport a fluid.

[0085] Within the meaning of the present invention, the term "delimits" or "forms" may correspond to, for example, constituting or participating in constituting something. For example, a volume may be defined by a wall, so that the wall participates in the formation and delimitation of the internal volume. Likewise, for example, a bulkhead may be formed by a wall, so that the wall participates in the formation and delimitation of the bulkhead.

[0086] Within the meaning of the present invention, the term "compartment" may be understood as a dry dock or ballast, or even a warehouse.

[0087] In the remainder of this specification, when a range or extension is used, the limits will be included.

[0088] The present invention proposes to take into account the CO2 emissions and the costs related to the construction and deployment of additional structures or the modification of existing structures or the introduction of CO2 capture systems requiring the use of a large amount of equipment and materials. In particular, the present invention proposes to optimize the structures without affecting the constraints related to the installation site and the performance of the activity, while minimizing the necessary work and the use of bulky and expensive materials. To this end, the present invention proposes to modify the layout of the structures, in particular their bulkheads, while proposing to reduce CO2 emissions.

[0089] Therefore, the present invention relates to a system for capturing CO2 in flue gas. The CO2 capture system can be Figures 1 to 4 is shown in the example.

[0090] The system 10 for capturing CO 2 according to the present invention may include at least one cooling module 11 , at least one absorption module 12 , at least one solvent regeneration module 13 , at least one flue gas transport duct 14 , and at least one marine structure 15 .

[0091] The flue gases may be generated, for example, by one or more flue gas generating units 18. The flue gas generating unit 18 may be, for example, a unit (device) for generating electricity, mechanical force or heat (which may in particular include steam power) of the turbine and / or engine and / or boiler type, or a unit (device) connected to oil and / or gas production activities, for example. These units 18 may be connected to one or more heat recovery units 17. These flue gases usually carry CO2, but also contain other components such as nitrogen, oxygen, water, argon, sulfur oxides and nitrogen oxides. In addition, CO2 is very dilute, for example, in a certain volume of flue gas, CO2 may only account for 3% to 9% without flue gas recirculation, while it may be as high as 20% in the case of flue gas recirculation. Therefore, recovering a large amount of CO2 requires managing and handling a large amount of flue gas. Therefore, it is very difficult to recover such CO2.

[0092] Therefore, the system 10 for capturing CO2 according to an embodiment of the present invention may include a gas turbine designed to generate electricity and flue gas from hydrocarbons; so that the flue gas is injected into at least one flue gas transport duct 14. For example, at least one flue gas transport duct may be in direct or indirect contact with the chimney of the flue gas generation unit. Optionally, the gas turbine may be configured to be able to perform a gas turbine combined cycle (CCGT). Therefore, the gas turbine may also be connected to a heat recovery and / or steam generation unit. In addition, this makes it possible to improve the efficiency of the generation of electricity and / or steam.

[0093] Optionally, the gas turbine may include a duct for flue gas recirculation, which is provided at the gas turbine inlet, preferably from the cooling module 11 to the air inlet of the turbine. For example, it may be a turbine equipped with an exhaust gas recirculation (EGR) device or a selective exhaust gas recirculation (SEGR) device.

[0094] Furthermore, in an alternative or supplementary embodiment, the flue gas may be generated or produced, for example, by one or more engines, preferably marine engines. The generated or produced waste flue gas may then be injected into at least one flue gas transport duct.

[0095] The generated flue gas is then transported to the various modules via at least one flue gas transport duct 14 so that the target gas can be processed and CO2 can be captured.

[0096] Thus, the at least one flue gas transport duct 14 is able to transport the flue gas loaded with gas / CO 2 and preferably transports the flue gas to at least one module of the CO 2 capture system 10 , and preferably to the cooling module 11 .

[0097] exist Figure 1 or Figure 2 or Figure 3 or even Figure 4 In the example of the present invention, the system 10 for capturing CO2 from flue gas comprises at least one cooling module 11, at least one absorption module 12 and at least one solvent regeneration module 13. The CO2 capture system 10 according to the present invention may also include at least one scrubbing module 16 and at least one solvent storage module 22. Each module is preferably designed to define an internal volume. The internal volume preferably corresponds to the volume in which the action (operation) required for the purpose of the module occurs. For example, in a preferred manner, the internal volume of the cooling module corresponds to the volume in which the flue gas containing CO2 is contacted with the fluid.

[0098] The internal volume of the cooling module 11 is designed to be able to cool the flue gases including CO2 with a fluid. For example, cooling may correspond to bringing the flue gases into contact with a fluid. The contact may be direct or indirect. In addition, this fluid may be, for example, water. For example, it may be seawater, or it may also be demineralised water. For example, in a non-limiting embodiment of the present invention, the cooling module may be in contact with an indirect cooling circuit. The flue gases are then brought into contact with demineralised water cooled by a cooling circuit filled with seawater connected to at least one recovery unit. Alternatively, the cooling module may be connected to a direct cooling circuit. Alternatively, the flue gases may be in direct contact with water. This enables the flue gases to be cooled. Advantageously, the cooling module may also at least partially reduce the concentration of other compounds present in the flue gases, in particular oxides of sulphur and nitrogen.

[0099] The internal volume of the absorption module 12 is designed to enable the cooled flue gas to be contacted with a lean solvent capable of absorbing CO2 from the flue gas to produce a rich solvent; for example, the solvent may be an amine-based solvent, for example.

[0100] The internal volume of the solvent regeneration module 13 is designed to be able to process the rich solvent to release the absorbed CO 2 and form a lean solvent.

[0101] The internal volume of the scrubbing module 16 is designed to be able to contact the CO 2 -depleted flue gases with water, preferably demineralized water, in order to reduce the potential entrained solvents in the flue gases.

[0102] The internal volume of the storage module 22 is designed to be able to store the solvent.

[0103] Advantageously, the module may include one or more internal volumes, or at least two modules may have the same internal volume. In these embodiments, the one or more internal volumes correspond to the volume in which the desired operation of the module purpose occurs. For example, the internal volume of the washing module 16 and the internal volume of the absorption module 11 may be combined in the same volume.

[0104] Advantageously, the CO2 capture system 10 according to the present invention comprises a pipeline for transporting solvents, which is designed to be able to transport rich solvents from the absorption module 11 to the solvent regeneration module 13, or to transport lean solvents from the solvent regeneration module 13 to the absorption module 11. These solvent transport pipelines, whether rich solvent or lean solvent, can be of a type known per se to those skilled in the art, such as conventional pipelines in the art.

[0105] The CO2 can then be extracted in parallel with any activity (electricity, mechanical power, heat, storage, natural gas and / or oil). The captured CO2 can thus be reinjected into the ground where it was produced, which is a reduction of CO2 emissions through sequestration. The CO2 can also be temporarily stored, preferably in liquid form, for subsequent use, which also reduces CO2 emissions. This is particularly advantageous because the CO2 is captured, which on the one hand reduces CO2 emissions and on the other hand complements any activity.

[0106] Advantageously, the CO2 capture system 10 according to the present invention comprises a marine structure 15. The marine structure 15 may be illustrated in conjunction with the accompanying drawings. Furthermore, the CO2 capture system 10 according to the present invention may be fixed or floating, preferably floating. Thus, the marine structure 15 may be a barge, a gravity structure GBS (gravity base structure) made of concrete or a gravity structure CBS (concrete base structure) made of concrete or a gravity structure CGBS (concrete gravity base structure) made of concrete, or a gravity structure SGBS (steel gravity base structure) made of steel or a gravity structure SGS (steel gravity structure) made of steel. The marine structure 15 may correspond to, for example, a floating production storage and offloading unit (FPSO), a floating production unit (FPU), a floating liquefied natural gas unit (FLNG), a floating storage and offloading unit (FSO), a floating power generation unit (FPGU), a floating storage and regasification unit for liquefied natural gas (FSRU), a floating liquefied natural gas storage and regasification barge with power generation (FSRP), or any other semi-submersible floating unit, a single point anchored oil storage (SPAR) structure, or a tension leg platform (TLP).

[0107] The marine structure 15 may have any geometric shape. In other words, the marine structure 15 is not limited by its shape. Thus, the marine structure 15 may have a circular, rectangular or substantially rectangular or any other polygonal shape. Similarly and particularly advantageously, the size of the marine structure 15 is not limited. Thus, the marine structure 15 may have any length, any width, any height or any diameter.

[0108] Furthermore, the CO2 capture system 10 according to the present invention comprises a marine structure 15 which may be partially submerged. For example, the marine structure 15 may have a portion of its structure in contact with water, preferably with seawater. For example, "partially submerged" may correspond to at least 10%, preferably at least 20%, more preferably at least 30% of the structure being in contact with water (preferably seawater). This may also correspond to an immersion of up to 90% below sea level, preferably up to 85% below sea level, more preferably up to 80% below sea level. Therefore, partial submergence may correspond to an immersion of 10% to 90% below sea level, preferably 20% to 85% below sea level, more preferably 30% to 85% below sea level.

[0109] In certain embodiments of the present invention, each module may be disposed on the surface of the marine structure 15, or may be disposed inside or outside the marine structure 15. For example, if the cooling module 11 is present on the surface of the marine structure 15 in a first embodiment, and / or if it is present inside the marine structure 15 in another embodiment, it does not depart from the scope of the present invention.

[0110] In addition, the marine structure 15 includes a hull. The hull may be shown in combination with Figure 5 or Figure 6 Preferably, the shell defines the marine structure 15. The shell may be single-layer or double-layer. Figure 5 The single-layer housing shown may include a side housing 19.1 and a bottom housing 19.2 (or housing bottom). Figure 6 The double-layer shell shown may include a side shell 19.1, a bottom shell 19.2 (or shell bottom), a transverse inner shell 19.3 (or transverse inner shell), a longitudinal inner shell 19.4, and an inner bottom 19.5 (or inner bottom shell). In a specific but non-limiting embodiment, the shell may be as follows Figure 6 Double hull shown. All shells, double hulls and bulkheads are part of a double hull within the meaning of the present invention. Furthermore, the hull has an inner surface and an outer surface, the outer surface being the surface that can come into contact with seawater, for example, and the inner surface defining the entire inner volume of the marine structure and being able to form an internal volume. The hull 19 can be made of steel or concrete. Furthermore, advantageously, the hull 19 can include a coating, preferably a polymer coating. The hull 19 made of concrete can preferably include a coating, preferably a polymer coating.

[0111] The marine structure 15 may include at least one dividing bulkhead 20 .

[0112] The bulkhead 20 may correspond to a wall. The bulkhead 20 is designed to connect or support the inner surface of the shell, preferably the shell 19, more preferably the inner surface of the single-layer or double-layer shell. Therefore, the bulkhead 20 may be connected to the inner surface of the single-layer or double-layer shell, preferably the single-layer or double-layer shell 19, along the direction of its length and / or width and / or diameter and / or radius. For example, the bulkhead 20 may extend from the top to the bottom of the inner surface of the shell 19, and / or from the left to the right of the inner surface of the shell 19, and / or be arranged along a diagonal line of the inner surface of the shell 19. The bulkhead 20 may include an outer surface and an inner surface. For example, the bulkhead 20 may correspond to a transverse bulkhead 20.1, a partial transverse bulkhead 20.2, a longitudinal bulkhead 20.3 or a partial longitudinal bulkhead 20.4. In addition, the bulkhead 20, whether it is a whole or a part, may be continuous or discontinuous. In addition, the bulkhead 20 may be made of concrete or steel. Preferably, the bulkhead 20 may also comprise a coating, preferably in case the bulkhead 20 is made of concrete.

[0113] Advantageously, the CO2 capture system 10 according to the present invention further comprises at least one flue gas transport duct 14 designed to be able to transport flue gas to the cooling module 11, preferably from the flue gas generating unit 18 to the cooling module 11. The flue gas transport duct 14 can also be designed to be able to transport flue gas from the cooling module 11 to the absorption module 12. Optionally, the flue gas transport duct 14 can also be designed to be able to transport flue gas from the absorption module 12 to the scrubbing module 16. In fact, in a specific and non-limiting example of the present invention comprising a horizontal cross-flow absorber, the flue gas transport duct 14 designed to be able to transport flue gas from the absorption module 12 to the scrubbing module 16 can be omitted.

[0114] The smoke conveying duct 14 may include an outer surface and an inner surface. The smoke conveying duct 14 may be made of steel or concrete. Advantageously, the smoke conveying duct 14 may include a coating, preferably a polymer coating, preferably in the case where the duct is made of concrete. Particularly advantageously, the smoke conveying duct 14 is not limited in its shape or size. The smoke conveying duct 14 according to the present invention may also be connected to at least one fan to promote the flow of smoke.

[0115] Particularly advantageously, at least one smoke conveying duct 14 can be formed at least partially by the shell 19, preferably by the inner surface of the shell 19, and / or by the dividing bulkhead 20. "Shell" shall mean at least one longitudinal inner shell, at least one transverse inner shell, at least one inner bottom, at least one bottom shell and / or at least one side shell. The dividing bulkhead 20 shall mean at least one transverse bulkhead, at least one partial transverse bulkhead, at least one longitudinal bulkhead and / or at least one partial longitudinal bulkhead. Preferably, the inner surface of the shell can participate in the formation of the outer surface of the smoke conveying duct. Thus, at least one smoke conveying duct 14 can share with the shell 19 at least 0.05% of the surface of the shell 19, preferably the entire surface, preferably the entire surface of the inner surface, preferably at least 0.10% of the surface of the shell 19, more preferably at least 0.50% of the surface of the shell 19, and even more preferably at least 1.00% of the surface of the shell 19.

[0116] At least one smoke conveying duct 14 may share with the shell 19 up to 10.00% of the surface of the shell 19, preferably the entire surface, more preferably the entire surface of the inner surface, preferably up to 8.00% of the surface of the shell 19, more preferably up to 6.00% of the surface of the shell 19, and even more preferably up to 5.00% of the surface of the shell 19.

[0117] At least one flue gas transport duct 14 may share 0.05% to 10.00%, preferably 0.01% to 8.00%, preferably 0.50% to 6.00%, more preferably 1.00% to 5.00% of the surface of the shell 19, preferably the entire surface, more preferably the entire surface of the shell inner surface with the shell 19.

[0118] Thus, at least a portion of the flue gas transport duct 14, preferably the outer surface and / or the inner surface of the flue gas transport duct 14, can be shared with the surface of the shell (preferably the entire surface of the shell 19, preferably the entire surface of the inner surface of the shell 19). This is particularly advantageous because it can optimize the space of the marine structure. In addition, this makes it possible to reduce the amount of materials and facilities required for CO2 capture. In fact, due to this layout, it is possible to save construction and production time and improve robustness in order to install a gas / CO2 capture and treatment system consisting of bulky and expensive equipment on the surface.

[0119] Also advantageously, the at least one smoke conveying duct 14 may be at least partially formed by the at least one dividing bulkhead 20. Preferably, the outer surface of the smoke conveying duct 14 may be formed by the outer surface of the at least one dividing bulkhead 20. Thus, the at least one smoke conveying duct 14 may share with the at least one dividing bulkhead 20 at least 5% of the surface of the at least one dividing bulkhead 20, preferably the entire surface, preferably the entire surface of the outer surface, preferably at least 10% of the surface of the at least one dividing bulkhead 20, more preferably at least 15% of the surface of the at least one dividing bulkhead 20, and even more preferably at least 20% of the surface of the at least one dividing bulkhead 20.

[0120] At least one smoke conveying duct 14 can share with at least one dividing bulkhead 20 up to 99% of the surface of at least one dividing bulkhead 20, preferably the entire surface, more preferably the entire surface of the outer surface, preferably up to 90% of the surface of at least one dividing bulkhead 20, more preferably up to 85% of the surface of at least one dividing bulkhead 20, and even more preferably up to 80% of the surface of at least one dividing bulkhead 20.

[0121] At least one smoke conveying duct 14 can share 5% to 99%, preferably 10% to 90%, preferably 15% to 85%, more preferably 20% to 80% of the surface of at least one dividing bulkhead 20, preferably the entire surface, more preferably the entire surface of the outer surface.

[0122] Furthermore, the shell 19, preferably the inner surface of the shell 19, may be at least partially formed by at least one dividing bulkhead 20. As a reminder, the shell shall refer to at least one side shell, at least one bottom shell, at least one transverse inner shell, at least one longitudinal inner shell and / or at least one inner bottom, and the dividing bulkhead 20 shall refer to at least one transverse bulkhead, at least one partial transverse bulkhead, at least one longitudinal bulkhead and / or at least one partial longitudinal bulkhead. Preferably, the inner surface of the shell 19 is formed by the outer surface of at least one dividing bulkhead 20. At least one shell 19 may share 0.5% of the surface of at least one dividing bulkhead 20, preferably the entire surface, more preferably the entire surface of the outer surface, preferably at least 1.0% of the surface of at least one dividing bulkhead 20, more preferably at least 1.5% of the surface of at least one dividing bulkhead 20, and still more preferably at least 2.0% of the surface of at least one dividing bulkhead 20 with at least one dividing bulkhead 20.

[0123] At least one shell 19 may share with at least one dividing bulkhead 20 up to 10.0% of the surface of at least one dividing bulkhead 20, preferably the entire surface, more preferably the entire surface of the outer surface, preferably up to 8.0% of the surface of at least one dividing bulkhead 20, more preferably up to 6.0% of the surface of at least one dividing bulkhead 20, and even more preferably up to 5.0% of the surface of at least one dividing bulkhead 20.

[0124] At least one shell 19 may share with at least one dividing bulkhead 20 0.5% to 10.0%, preferably 1.0% to 8.0%, preferably 1.5% to 6.0%, more preferably 2.0% to 5.0% of the surface of at least one dividing bulkhead 20, preferably the entire surface, preferably the entire surface of the outer surface.

[0125] Particularly advantageously, Figures 1 to 4 As shown, the internal volume of at least one module may be at least partially formed by the shell 19. Preferably, the internal volume of at least one module may be at least partially formed by the inner surface of the shell 19. The internal volume of at least one module may share at least 0.5% of the surface of the shell 19, preferably the entire surface, preferably the entire surface of the inner surface, preferably at least 1% of the surface of the shell 19, more preferably at least 5% of the surface of the shell 19, and even more preferably at least 10% of the surface of the shell 19 with at least the shell 19. Preferably, at least one absorption module 12, more preferably an absorption module 12 and a solvent regeneration module 13, even more preferably an absorption module 12 and a solvent regeneration module 13 and a cooling module 11, and even more preferably an absorption module 12 and a solvent regeneration module 13 and a cooling module 11 and a solvent storage module (i.e.: volume) 22 and / or the internal volume of the washing module 16.

[0126] The internal volume of at least one module may share with the shell 19 up to 99% of the surface of the shell 19, preferably the entire surface, preferably the entire surface of the inner surface, preferably up to 90% of the surface of the shell 19, more preferably up to 85% of the surface of the shell 19, and even more preferably up to 80% of the surface of the shell 19.

[0127] The internal volume of at least one module may share with the shell 19 0.5% to 99%, preferably 1% to 90%, preferably 5% to 85%, more preferably 10% to 80% of the surface of the shell 19, preferably the entire surface, preferably the entire surface of the inner surface.

[0128] In a particular embodiment, the interior volume of each module may be at least partially formed by the shell 19. Preferably, the interior volume of each module may be at least partially formed by the inner surface of the shell 19. The interior volume of each module may share with the shell 19 at least 0.5% of the surface of the shell 19, preferably the entire surface, preferably the entire surface of the inner surface, preferably at least 1% of the surface of the shell 19, more preferably at least 5% of the surface of the shell 19, and even more preferably at least 10% of the surface of the shell 19.

[0129] The internal volume of each module can share with the shell 19 up to 99% of the surface of the shell 19, preferably the entire surface, preferably the entire surface of the inner surface, preferably up to 90% of the surface of the shell 19, more preferably up to 85% of the surface of the shell 19, and even more preferably up to 80% of the surface of the shell 19.

[0130] The internal volume of each module may share 0.5% to 99%, preferably 1% to 90%, preferably 5% to 85%, more preferably 10% to 80% of the surface of the shell 19, preferably the entire surface, more preferably the entire surface of the inner surface.

[0131] Furthermore, the inner volume of at least one module may be at least partially formed by at least one dividing bulkhead 20. Preferably, the inner volume of at least one module may be at least partially formed by the outer surface of at least one bulkhead 20. The inner volume of at least one module, preferably at least one absorption module 12, more preferably absorption module 12 and solvent regeneration module 13, still more preferably absorption module 12 and solvent regeneration module 13 and cooling module 11, particularly more preferably absorption module 12 and solvent regeneration module 13 and cooling module 11 and solvent storage module 22 and / or washing module 16 may share at least 5% of the surface of at least one dividing bulkhead 20, preferably the entire surface, preferably the entire surface of the outer surface, preferably at least 10% of the surface of at least one dividing bulkhead 20, more preferably at least 15% of the surface of at least one dividing bulkhead 20, still more preferably at least 20% of the surface of at least one dividing bulkhead 20 with at least one dividing bulkhead 20.

[0132] The internal volume of at least one module can share with at least one dividing bulkhead 20 up to 99% of the surface of at least one dividing bulkhead 20, preferably the entire surface, preferably the entire surface of the outer surface, preferably up to 90% of the surface of at least one dividing bulkhead 20, more preferably up to 85% of the surface of at least one dividing bulkhead 20, and even more preferably up to 80% of the surface of at least one dividing bulkhead 20.

[0133] The internal volume of at least one module can share 5% to 99%, preferably 10% to 90%, preferably 15% to 85%, more preferably 20% to 80% of the surface of at least one dividing bulkhead 20, preferably the entire surface, preferably the entire surface of the outer surface.

[0134] In a particular embodiment, the interior volume of each module may be at least partially formed (i.e. defined) by at least one dividing bulkhead 20. Preferably, the interior volume of each module may be at least partially formed by the outer surface of at least one dividing bulkhead 20. The interior volume of each module may share with at least one dividing bulkhead 20 at least 5% of the surface of at least one dividing bulkhead 20, preferably the entire surface, preferably the entire surface of the outer surface, preferably at least 10% of the surface of at least one dividing bulkhead 20, more preferably at least 15% of the surface of at least one dividing bulkhead 20, and even more preferably at least 20% of the surface of at least one dividing bulkhead 20.

[0135] The internal volume of each module can share with at least one dividing bulkhead 20 up to 99% of the surface of at least one dividing bulkhead 20, preferably the entire surface, preferably the entire surface of the outer surface, preferably up to 90% of the surface of at least one dividing bulkhead 20, more preferably up to 85% of the surface of at least one dividing bulkhead 20, and even more preferably up to 80% of the surface of at least one dividing bulkhead 20.

[0136] The internal volume of each module can share 5% to 99%, preferably 10% to 90%, preferably 15% to 85%, more preferably 20% to 80% of the surface of at least one dividing bulkhead 20, preferably the entire surface, preferably the entire surface of the outer surface.

[0137] Furthermore, the internal volume of at least one module may be at least partially formed by at least one flue gas transport duct 14. Preferably, the internal volume of at least one module may be at least partially formed by the outer surface of at least one flue gas transport duct 14. The internal volume of at least one module may share at least 5% of the surface of at least one flue gas transport duct 14, preferably the entire surface, preferably the entire surface of the outer surface, preferably at least 10% of the surface of at least one flue gas transport duct 14, more preferably at least 15% of the surface of at least one flue gas transport duct 14, and even more preferably at least 20% of the surface of at least one flue gas transport duct 14 with at least one flue gas transport duct 14. Preferably, at least one absorption module 12, more preferably absorption module 12 and solvent regeneration module 13, even more preferably absorption module 12 and solution regeneration module 13 and cooling module 11, and even more preferably absorption module 12 and solvent regeneration module 13 and cooling module 11 and solvent storage module 22 and / or washing module 16.

[0138] The internal volume of at least one module can share with at least one smoke gas transport duct 14 up to 99% of the surface of at least one smoke gas transport duct 14, preferably the entire surface, preferably the entire surface of the outer surface, preferably up to 90% of the surface of at least one smoke gas transport duct 14, more preferably up to 85% of the surface of at least one smoke gas transport duct 14, and even more preferably up to 80% of the surface of at least one smoke gas transport duct 14.

[0139] The internal volume of at least one module may share 5% to 99%, preferably 10% to 90%, preferably 15% to 85%, more preferably 20% to 80% of the surface of at least one smoke transport duct 14, preferably the entire surface, preferably the entire surface of the outer surface.

[0140] In a particular embodiment, the interior volume of each module may be at least partially formed by at least one smoke transport duct 14. Preferably, the interior volume of each module may be at least partially formed by the outer surface of at least one smoke transport duct 14. The interior volume of each module may share with at least one smoke transport duct 14 at least 5% of the surface of at least one smoke transport duct, preferably the entire surface, preferably the entire surface of the outer surface, preferably at least 10% of the surface of at least one smoke transport duct 14, more preferably at least 15% of the surface of at least one smoke transport duct 14, and even more preferably at least 20% of the surface of at least one smoke transport duct 14.

[0141] The internal volume of each module can share with at least one smoke gas transport duct 14 up to 99% of the surface of at least one smoke gas transport duct 14, preferably the entire surface, preferably the entire surface of the outer surface, preferably up to 90% of the surface of at least one smoke gas transport duct 14, more preferably up to 85% of the surface of at least one smoke gas transport duct 14, and even more preferably up to 80% of the surface of at least one smoke gas transport duct 14.

[0142] The internal volume of each module can share 5% to 99%, preferably 10% to 90%, preferably 15% to 85%, and more preferably 20% to 80% of the surface of at least one smoke transport duct 14, preferably the entire surface, preferably the entire surface of the outer surface.

[0143] Therefore, the CO2 capture system 10 uses the marine structure 15 and makes it possible to merge all or part of the modules of the CO2 capture system 10. The CO2 capture system 10 according to the present invention can merge at least one dividing bulkhead 20 with at least one module (preferably with each module) and / or with at least one flue gas transport duct 14 in the marine structure 15. Such a layout can improve the compactness of the system.

[0144] Furthermore, this layout makes it possible to reduce production and construction times and facilitate the deployment of the system according to the invention. In fact, the system according to the invention, due to its layout, makes it possible to reduce the use of a large amount of materials, to dispense with the construction of additional structures consisting of a large amount of expensive materials, and to reduce the length of connections, for example, between turbines and modules or other equipment, by pipes. This therefore makes it possible to reduce implementation costs and times.

[0145] Furthermore, the CO2 capture system 10 according to the invention makes it possible to optimize the space available in a housing, preferably a marine structure 15, without affecting its activity or its parameters, such as its buoyancy.

[0146] The CO 2 capture system 10 according to the present invention may also minimize the amount of material, the effort required for manufacturing and deployment and therefore the overall cost of implementing such a CO 2 capture system.

[0147] Finally, it is apparent that the CO2 capture system 10 may advantageously reduce CO2 emissions generated by electrical and / or mechanical and / or heat generating activities of a marine structure.

[0148] Thus, the CO2 capture system 10 directly utilizes marine structures to partition and / or separate the various modules, pipes, and bulkheads.

[0149] This also makes it possible to adjust the internal volume of each module, which further optimizes the space of the marine structure 15.

[0150] For example, in a particular embodiment of the present invention, the absorption module 12 may be formed by (i.e., may include) at least one tower or at least two towers, which share at least a portion with the surface of the shell 19, preferably the inner surface of the shell 19. It should be noted that the towers can be horizontal or vertical.

[0151] In a particular embodiment of the invention, the absorption module 12 may be designed to enable countercurrent absorption, preferably in the case of a "barge" and / or "gravity" type marine structure.

[0152] The absorption module 12 may also be designed to enable cross-flow absorption, preferably in the case of a "barge" type marine structure.

[0153] Advantageously, the use of a cross-current absorption makes it possible to limit the effects of movements and / or tilting constraints, for example due to swells on the floating structure, which could affect the chemical absorption performance of the solvent for CO2. In fact, the movements of the marine structure can disturb the uniformity of the distribution of the solvent by one or more distributors, which reduces the performance of the CO2 capture system, in particular because of the large height of the countercurrent absorption module and the small number of solvent distributors. Moreover, thanks to the cross-current absorption module, the above-mentioned phenomena are reduced, maintaining the performance of the CO2 capture system despite the movements. Therefore, this layout is particularly advantageous in the system according to the invention.

[0154] In a specific but non-limiting embodiment of the cross-flow embodiment, the CO2 capture system may include at least one absorption module 12 containing at least one absorption internal volume and at least one washing module 16 containing at least one washing internal volume, or at least one internal volume of the absorption module 12 and at least one internal volume of the washing module 16 within the same absorption module 12.

[0155] In addition, one or more absorption modules 12 may include at least one absorption section or multiple absorption sections. Each section may be delimited by partial bulkheads. These bulkheads can optimize the distribution of fluids and the recovery of solvents, thereby reducing the required solvent flow.

[0156] Furthermore, one or more of the scrubbing modules 16 may include at least one scrubbing section or a plurality of scrubbing sections to reduce solvent carryover and / or loss. Each section may be delimited by a portion of a bulkhead.

[0157] In certain embodiments where the marine structure corresponds to a GBS, the height of the shell allows the countercurrent absorber or scrubber to be vertically integrated in a single block without having to separate them.

[0158] Cross-flow absorption is particularly advantageous where marine structure height is limited.For example, a CO2 capture system 10 according to the present invention may incorporate one or more absorption towers and / or one or more cross-flow scrubbers horizontally in a given module.

[0159] Therefore, the use of cross-flow absorption can eliminate the limitation of the shell height of floating marine structures (such as barge-type marine structures). In addition, compared with counter-flow absorbers that require higher minimum flow rates, cross-flow technology can achieve low flue gas flow operation. Finally, compared with counter-flow absorbers, cross-flow absorbers also have lower pressure drops, which can minimize the electricity consumed by the CO2 capture system.

[0160] Furthermore, in addition to being able to adjust the internal volume of each module, the CO2 capture system 10 according to the present invention may also be designed to allow horizontal and / or vertical and / or radial fluid flows.

[0161] Therefore, the CO 2 capture system 10 according to the present invention can minimize the amount of material required to ensure CO 2 capture, thus also reducing costs.

[0162] In a specific non-limiting exemplary embodiment of the present invention comprising, for example, a floating barge, the CO2 capture system may include a power generation unit arranged on the surface of a floating marine structure and supplied with fuel gas via a partially flexible submarine pipeline or gas stored in a shell in a liquid state. The generated electricity is transmitted to other facilities via a submarine cable. The flue gas from the gas turbine circulates in the marine structure through at least one flue gas transmission pipeline, which preferably has a polygonal (e.g., rectangular) cross-section and is made of concrete and / or steel. The flue gas is then directed to the cooling module 11, the absorption module 12, and the washing module 16. Afterwards, all the pipes and modules (as well as the solvent storage reservoir) that constitute the CO2 capture system are separated by at least one dividing bulkhead and equipped with a coating (e.g., a polymer coating in the case of a concrete structure) and integrated into the marine structure.

[0163] Another specific non-limiting exemplary embodiment of the present invention may include a CO2 capture system comprising a gravity-type marine structure. The gravity-type structure is capable of recovering and capturing CO2 from flue gas generated by existing facilities (e.g., a platform equipped with a power generation unit). The structure is fixed and can be connected to the existing facility via a bridge of transport pipelines and cables. In this case, the CO2 capture system is incorporated into the structure in a vertical manner. In addition, the CO2 capture system according to the present invention can reduce the length of conduits and pipelines and the complexity of the facility, thereby helping to reduce costs and the amount of materials required.

[0164] The housing 19, and at least one dividing bulkhead 20, enable the CO2 capture system 10 to be divided, but also ensure the functioning of the ducts, flue gas ducts and modules required for capturing CO2, thus reducing CO2 emissions and lowering costs.

[0165] According to a second aspect, the present invention relates to the use of a CO2 capture system according to the present invention in power generation, steam generation, CO2 processing, CO2 regulation, CO2 transport, CO2 storage, waste flue gas recovery, waste flue gas processing, natural gas extraction, oil extraction and / or marine transportation. In fact, the CO2 capture system according to the present invention can be incorporated into any activity, thus enabling CO2 to be captured to reduce CO2 emissions. The processing of CO2 may include, for example, dehydration, deoxygenation, purification, compression, liquefaction and / or pumping.

[0166] The present invention may include many alternatives and applications other than those described above. In particular, unless otherwise specified, the various structural and functional features of each of the above embodiments should not be considered as being combined with each other and / or closely and / or inseparably connected to each other, but should be considered as simply juxtaposed. In addition, the structural and / or functional features of the above embodiments may be the whole or part of the subject matter of any different juxtaposition or any different combination.

Claims

1. A system (10) for capturing CO2 from flue gas, comprising at least one cooling module (11), at least one absorption module (12) and at least one solvent regeneration module (13), each of said modules being designed to define an internal volume; The internal volume of the cooling module (11) is designed to be able to cool the flue gas including CO2 with a fluid; The internal volume of the absorption module (12) is designed to allow the cooled flue gas to contact with a lean solvent capable of absorbing CO2 from the flue gas to produce a rich solvent; The internal volume of the solvent regeneration module (13) is designed to be able to process the rich solvent to release the absorbed CO2 and form a lean solvent; The system (10) further comprises at least one smoke delivery pipe (14), which is designed to be able to deliver smoke to the cooling module (11), and the system (10) is characterized in that: - it comprises a marine structure (15) having a hull (19) and at least one dividing bulkhead (20), - the internal volume of at least one of the modules is at least partially defined by the casing (19) and / or the at least one dividing bulkhead (20).

2. The system (10) for capturing CO2 according to claim 1, characterized in that The at least one smoke conveying duct (14) is at least partially formed by the housing (19) and / or the at least one dividing bulkhead (20).

3. The system (10) for capturing CO2 according to claim 1 or 2, characterized in that The at least one dividing bulkhead (20) corresponds to at least one transverse bulkhead, at least one transverse partial bulkhead, at least one longitudinal bulkhead and / or at least one longitudinal partial bulkhead connecting the shell (19).

4. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The housing corresponds to a single-layer housing.

5. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The housing includes at least one side housing and / or at least one bottom housing.

6. System (10) for capturing CO2 according to one of claims 1 to 3, characterized in that The housing (19) corresponds to a double-layer housing.

7. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The housing (19) comprises at least one side shell, at least one bottom shell, at least one transverse inner shell, at least one longitudinal inner shell and / or an inner bottom.

8. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The at least one smoke conveying duct (14) shares at least 0.05% of the surface of the shell (19) with the shell (19).

9. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The at least one smoke conveying duct (14) shares with the housing (19) at most 10% of the surface of the housing (19).

10. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The interior volume of each module is at least partially defined by the housing (19).

11. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The at least one smoke conveying duct (14) shares at least 5% of the surface of the at least one dividing bulkhead (20) with the at least one dividing bulkhead (20).

12. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The housing (19) is at least partially formed by the at least one dividing bulkhead (20).

13. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The interior volume of each module is at least partially defined by the at least one dividing bulkhead (20).

14. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The interior volume of at least one of the modules is at least partially defined by the at least one smoke transport duct (14).

15. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The interior volume of each module is at least partially defined by the at least one flue gas transport duct (14).

16. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The system further comprises at least one flue gas generating unit (18) designed to generate flue gas from hydrocarbons; and The invention is characterized in that the smoke generating unit (18) is designed to inject the smoke into the at least one smoke conveying duct (14).

17. The system (10) for capturing CO2 according to claim 16, characterized in that The at least one smoke generating unit (18) corresponds to a device for generating electrical power and / or mechanical power and / or thermal power.

18. The system (10) for capturing CO2 according to claim 16, characterized in that The flue gas generating unit (18) is configured to be capable of performing a combined cycle.

19. The system (10) for capturing CO2 according to claim 16, characterized in that The smoke generating unit (18) comprises a system for recirculating at least part of the smoke.

20. The system (10) for capturing CO2 according to claim 16, characterized in that The smoke generating unit (18) comprises a system for selectively recirculating part of the smoke.

21. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The absorption module (12) is formed by at least one tower sharing a common wall with the housing (19).

22. System (10) for capturing CO2 according to one of claims 1 to 20, characterized in that The absorption module (12) is formed by at least two towers each sharing a common wall with the housing (19).

23. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The system also includes at least one washing module (16).

24. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The absorption module (12) is designed to be able to perform countercurrent absorption.

25. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The absorption module (12) is designed to be able to perform cross-flow absorption.

26. The system (10) for capturing CO2 according to claim 25, characterized in that When the absorption module is designed to be able to perform cross-flow absorption, the system (10) for capturing CO2 comprises at least one internal volume of the absorption module (12) and at least one internal volume of the scrubbing module (16).

27. The system (10) for capturing CO2 according to claim 25, characterized in that The absorption module designed to be able to perform cross-flow absorption comprises at least one internal volume of the absorption module (12) and at least one internal volume of the wash module (16) within the same absorption module (12).

28. The system (10) for capturing CO2 according to claim 25, characterized in that The absorption module (12) designed to enable cross-flow absorption comprises at least one absorption section or a plurality of absorption sections, each section being delimited by a partial bulkhead.

29. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The system is designed to enable horizontal and / or vertical and / or radial fluid flow.

30. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The housing (19) is covered with a coating, preferably a polymer coating.

31. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The housing (19) is made of concrete or steel.

32. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The system is either fixed or floating.

33. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The system is partially submerged.

34. System (10) for capturing CO2 according to one of the preceding claims, characterized in that The system also includes at least one solvent storage module (22).

35. System (10) for capturing CO2 according to one of the preceding claims, characterized in that At least a portion of the cooling module (11) is in direct or indirect contact with the fluid.

36. System (10) for capturing CO2 according to one of the preceding claims, characterized in that At least a portion of the cooling module (11) is in contact with an indirect cooling circuit.

37. Use of the system (10) for capturing CO2 according to one of the preceding claims in power generation, steam production, CO2 processing, CO2 regulation, CO2 transport, CO2 storage, exhaust gas recovery, exhaust gas treatment, natural gas extraction, oil extraction and / or marine transportation.

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